:root{--color-gray-50: #FAFAF8;--color-gray-100: #F2F2EF;--color-gray-200: #E7E7E3;--color-gray-300: #D3D5D9;--color-gray-400: #B4B8C0;--color-gray-500: #8B909C;--color-gray-600: #5B6472;--color-gray-700: #434B59;--color-gray-800: #262B33;--color-gray-900: #12151A;--color-gray-950: #0A0C0F;--color-ink-fixed: #12151A;--color-ink-fixed-hover: #262B33;--color-ink-fixed-active: #434B59;--color-accent-50: #EDF7EA;--color-accent-100: #D6EAD1;--color-accent-200: #B7D6A8;--color-accent-300: #8BBF76;--color-accent-400: #589F4F;--color-accent-500: #326F34;--color-accent-600: #2A5C2D;--color-accent-700: #204625;--color-accent-800: #17361F;--color-accent-900: #0E2617;--color-success: #2B7E3B;--color-success-bg: #EAF6EA;--color-success-border: #BFDBB7;--color-warning: #B68824;--color-warning-bg: #FEF3D7;--color-warning-border: #E6D2A2;--color-gold-100: #FEF3D7;--color-gold-200: #F5E2A6;--color-gold-300: #E5CB7A;--color-gold-400: #CFB35A;--color-gold-500: #B68824;--color-gold-600: #9C6E1D;--color-gold-700: #805817;--color-gold-800: #644513;--color-gold-900: #4B3410;--color-error: #C0362C;--color-error-bg: #FBEAE8;--color-error-border: #F0C4BF;--color-info: #4A6D49;--color-info-bg: #ECF3EB;--color-info-border: #C9DAC2;--color-background: #F5F3EC;--color-surface: #FFFFFF;--color-border: #D8D3C3;--color-divider: #E5E0D0;--color-text-primary: #131C13;--color-text-secondary: #4D574D;--color-text-muted: #6E766E;--color-link: var(--color-accent-500);--color-link-visited: var(--color-accent-700);--color-hover: var(--color-warning);--color-selection-bg: #F7E8C0;--color-selection-text: var(--color-text-primary);--font-heading: "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--space-24: 96px;--space-30: 120px;--space-40: 160px;--radius-xs: 4px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(18, 21, 26, .04);--shadow-sm: 0 2px 4px rgba(18, 21, 26, .06);--shadow-md: 0 4px 12px rgba(18, 21, 26, .08);--shadow-lg: 0 8px 24px rgba(18, 21, 26, .1);--shadow-xl: 0 16px 48px rgba(18, 21, 26, .12);--shadow-floating: 0 6px 16px rgba(18, 21, 26, .08);--shadow-modal: 0 16px 48px rgba(18, 21, 26, .12), 0 0 0 1px rgba(18, 21, 26, .04);--shadow-dropdown: var(--shadow-lg);--ease-out: cubic-bezier(.4, 0, .2, 1);--ease-in: cubic-bezier(.4, 0, 1, 1);--transition-fast: .15s var(--ease-out);--transition-base: .2s var(--ease-out);--transition-slow: .25s var(--ease-out);--container-reading: 720px;--container-max: 1200px;--container-wide-cap: 1320px}::selection{background-color:var(--color-selection-bg);color:var(--color-selection-text)}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}body{min-height:100svh;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,svg,video,canvas{display:block;max-width:100%;height:auto}input,button,textarea,select{font:inherit;color:inherit}button{background:none;border:none;cursor:pointer;text-align:inherit}ul,ol{list-style:none}a{color:inherit;text-decoration:none}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}table{border-collapse:collapse;width:100%}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}textarea{resize:vertical}:focus{outline:none}:focus-visible{outline:2px solid var(--color-accent-300);outline-offset:2px}body{font-family:var(--font-body);font-size:16px;font-weight:400;line-height:1.65;color:var(--color-text-primary);background-color:var(--color-background)}h1,.text-display,.text-h1,h2,.text-h2,h3,.text-h3,h4,.text-h4,h5,.text-h5,h6,.text-h6{font-family:var(--font-heading)}.text-display{font-size:34px;font-weight:700;line-height:1.15;letter-spacing:-.01em}@media(min-width:768px){.text-display{font-size:44px;line-height:1.12}}@media(min-width:1024px){.text-display{font-size:56px;line-height:1.1;letter-spacing:-.02em}}h1,.text-h1{font-size:28px;font-weight:700;line-height:1.2;letter-spacing:-.01em}@media(min-width:768px){h1,.text-h1{font-size:34px}}@media(min-width:1024px){h1,.text-h1{font-size:40px;line-height:1.15;letter-spacing:-.015em}}h2,.text-h2{font-size:26px;font-weight:700;line-height:1.25;letter-spacing:-.01em}@media(min-width:1024px){h2,.text-h2{font-size:32px;line-height:1.2}}h3,.text-h3{font-size:20px;font-weight:600;line-height:1.3;letter-spacing:-.005em}@media(min-width:1024px){h3,.text-h3{font-size:24px}}h4,.text-h4{font-size:18px;font-weight:600;line-height:1.35}@media(min-width:1024px){h4,.text-h4{font-size:20px}}h5,.text-h5{font-size:16px;font-weight:600;line-height:1.4}@media(min-width:1024px){h5,.text-h5{font-size:17px}}h6,.text-h6{font-size:14px;font-weight:600;line-height:1.4;letter-spacing:.01em}@media(min-width:1024px){h6,.text-h6{font-size:15px}}.text-body-lg{font-size:18px;font-weight:400;line-height:1.7;color:var(--color-text-secondary)}.text-body{font-size:16px;font-weight:400;line-height:1.65}.text-small{font-size:14px;font-weight:400;line-height:1.55}.text-caption{font-size:13px;font-weight:500;line-height:1.4;letter-spacing:.01em;color:var(--color-text-muted)}.text-overline{display:block;font-size:12px;font-weight:600;line-height:1.2;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent-500)}blockquote{font-family:var(--font-body);font-style:italic;font-weight:500;font-size:20px;line-height:1.6;color:var(--color-text-primary);border-left:3px solid var(--color-accent-500);padding-left:var(--space-6);margin:var(--space-8) 0}code{font-family:var(--font-mono);font-size:14px;line-height:1.6;background-color:var(--color-gray-100);border-radius:var(--radius-xs);padding:2px 6px}pre{font-family:var(--font-mono);font-size:14px;line-height:1.6;background-color:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-6);overflow-x:auto;margin:var(--space-6) 0}pre code{background:none;padding:0;border-radius:0}.prose ul,.prose ol{list-style:revert;padding-left:var(--space-6);margin:var(--space-4) 0}.prose li+li{margin-top:var(--space-2)}.prose table{font-size:15px;margin:var(--space-6) 0}.prose th{font-weight:600;font-size:14px;text-align:left;background-color:var(--color-gray-50);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border)}.prose td{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-divider)}.prose a{color:var(--color-link);text-decoration:underline;text-underline-offset:2px;transition:color var(--transition-fast)}.prose a:visited{color:var(--color-link-visited)}.prose a:hover{color:var(--color-hover)}:root[data-theme=dark]{--color-gray-50: #101215;--color-gray-100: #191C20;--color-gray-200: #262A30;--color-gray-300: #343941;--color-gray-400: #4B515B;--color-gray-500: #6B7280;--color-gray-600: #9AA1AD;--color-gray-700: #B8BEC7;--color-gray-800: #D8DBDF;--color-gray-900: #F2F2F0;--color-gray-950: #FFFFFF;--color-background: var(--color-gray-50);--color-surface: #1A1D22;--color-border: var(--color-gray-200);--color-divider: var(--color-gray-100);--color-text-primary: var(--color-gray-900);--color-text-secondary: var(--color-gray-600);--color-text-muted: var(--color-gray-500);--color-link: var(--color-accent-300);--color-link-visited: var(--color-accent-200);--color-hover: var(--color-accent-300);--color-selection-bg: rgba(143, 173, 247, .25);--color-selection-text: var(--color-gray-900);--color-accent-600: #8FADF7;--color-accent-700: #B9CDFB;--color-success-bg: rgba(30, 142, 90, .16);--color-warning-bg: rgba(183, 121, 31, .16);--color-error-bg: rgba(192, 54, 44, .16);--color-info-bg: rgba(45, 111, 201, .18);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .35);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .45);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .55);--shadow-floating: 0 6px 16px rgba(0, 0, 0, .4);--shadow-modal: 0 16px 48px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 255, 255, .06);--shadow-dropdown: var(--shadow-lg)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark}}:root[data-theme=dark]{color-scheme:dark}.container{width:100%;margin-inline:auto;padding-inline:var(--space-5)}@media(min-width:768px){.container{padding-inline:var(--space-10)}}@media(min-width:1024px){.container{padding-inline:var(--space-16);max-width:calc(var(--container-max) + 2 * var(--space-16))}}@media(min-width:1440px){.container{max-width:calc(var(--container-max) + 2 * var(--space-16))}}@media(min-width:1920px){.container{max-width:calc(var(--container-wide-cap) + 2 * var(--space-16))}}.container--narrow{max-width:560px}.container--reading{max-width:var(--container-reading)}.grid{display:grid;gap:var(--space-4)}@media(min-width:1024px){.grid{gap:var(--space-6)}}.grid--cols-2{grid-template-columns:repeat(2,1fr)}.grid--cols-3{grid-template-columns:repeat(3,1fr)}.grid--cols-4{grid-template-columns:repeat(4,1fr)}@media(max-width:767px){.grid--cols-2,.grid--cols-3,.grid--cols-4{grid-template-columns:1fr}}@media(min-width:768px)and (max-width:1023px){.grid--cols-3,.grid--cols-4{grid-template-columns:repeat(2,1fr)}}.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.newsletter,.contact,.youtube-content{padding-block:var(--space-16)}@media(min-width:768px){.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.newsletter,.contact,.youtube-content{padding-block:var(--space-20)}}@media(min-width:1024px){.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.newsletter,.contact,.youtube-content{padding-block:var(--space-24)}}.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.youtube-content{padding-inline:var(--space-5);margin-inline:auto;width:100%}@media(min-width:768px){.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.youtube-content{padding-inline:var(--space-10)}}@media(min-width:1024px){.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.youtube-content{padding-inline:var(--space-16);max-width:calc(var(--container-max) + 2 * var(--space-16))}}@media(min-width:1920px){.latest-posts,.featured-articles,.categories,.about-summary,.services,.stats,.youtube-content{max-width:calc(var(--container-wide-cap) + 2 * var(--space-16))}}.section-header{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-10)}.section-header__title{color:var(--color-text-primary)}.section-header__title--centered{width:100%;text-align:center;margin-bottom:var(--space-10)}.featured-articles{background-color:var(--color-gray-50);max-width:100%}.featured-articles__grid{display:grid;gap:var(--space-6);max-width:calc(var(--container-max) + 2 * var(--space-16));margin-inline:auto}@media(min-width:1024px){.featured-articles__grid{grid-template-columns:1.618fr 1fr;align-items:start}}.featured-articles__secondary-list{display:flex;flex-direction:column;gap:var(--space-6)}.categories{display:flex;flex-direction:column;align-items:center}.about-summary{display:grid;gap:var(--space-8)}@media(min-width:768px){.about-summary{grid-template-columns:320px 1fr;align-items:center;gap:var(--space-16)}}.about-summary__figure{justify-self:center}@media(min-width:768px){.about-summary__figure{justify-self:start}}.about-summary__image{border-radius:var(--radius-lg);border:1px solid var(--color-border);width:200px;height:250px;object-fit:cover}@media(min-width:768px){.about-summary__image{width:100%;height:auto;aspect-ratio:4 / 5}}.about-summary__content{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-3);text-align:center}@media(min-width:768px){.about-summary__content{text-align:left}}.about-summary__eyebrow{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent-500)}.about-summary__title{margin-top:var(--space-1)}.about-summary__bio{color:var(--color-text-secondary)}.about-summary__badges{display:flex;flex-wrap:wrap;gap:var(--space-2);margin:var(--space-2) 0 var(--space-2)}.services{display:flex;flex-direction:column;align-items:center}.stats__list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-6);text-align:center}@media(min-width:768px){.stats__list{grid-template-columns:repeat(4,1fr)}}.newsletter{background-color:var(--color-ink-fixed);color:#fff;text-align:center;max-width:100%;padding-inline:var(--space-5)}.newsletter__eyebrow{color:var(--color-accent-300)}.newsletter__title{color:#fff;margin-top:var(--space-3)}.newsletter__description{color:#ffffffb3;margin-top:var(--space-2);margin-bottom:var(--space-8)}.newsletter__form{display:flex;flex-direction:column;gap:var(--space-3);max-width:420px;margin-inline:auto}@media(min-width:640px){.newsletter__form{flex-direction:row}}.newsletter__form .form-hint{color:#ffffffd9}.contact{max-width:560px;margin-inline:auto;padding-inline:var(--space-5);text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--space-6)}.contact__eyebrow{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent-500)}.contact__title{color:var(--color-text-primary)}.contact__social-list{display:flex;gap:var(--space-4)}.youtube-content{background-color:var(--color-gray-50)}.youtube-content .section-header{margin-bottom:var(--space-12)}.youtube-grid{display:grid;gap:var(--space-8);grid-template-columns:1fr}@media(min-width:768px){.youtube-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.youtube-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-12)}}.video-card{display:flex;flex-direction:column;gap:var(--space-4);background:#fff;padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--color-border);transition:transform .3s ease,box-shadow .3s ease}.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.video-card__wrapper{position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--radius-md);background:var(--color-ink-fixed)}.video-card__wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.video-card__title{font-family:var(--font-display);font-size:var(--text-lg);font-weight:700;color:var(--color-text-primary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.button--youtube{background-color:red;color:#fff;border:none;display:inline-flex;align-items:center;gap:var(--space-2)}.button--youtube:hover{background-color:#c00;color:#fff}.button--youtube img{filter:brightness(0) invert(1)}.site-header{position:sticky;top:0;z-index:50;height:64px;display:flex;align-items:center;background-color:#f5f3ecd9;border-bottom:1px solid rgba(216,211,195,.9);transition:background-color var(--transition-base),border-color var(--transition-base)}@media(min-width:1024px){.site-header{height:72px}}.site-header.is-scrolled{background-color:#f5f3ecfa;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom-color:var(--color-border)}.site-nav__link[aria-current=page]{color:var(--color-warning)}.site-nav__link[aria-current=page]:after{background-color:var(--color-warning)}.site-header__container{width:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding-inline:var(--space-5);margin-inline:auto}@media(min-width:768px){.site-header__container{padding-inline:var(--space-10)}}@media(min-width:1024px){.site-header__container{padding-inline:var(--space-16);max-width:calc(var(--container-max) + 2 * var(--space-16))}}@media(min-width:1920px){.site-header__container{max-width:calc(var(--container-wide-cap) + 2 * var(--space-16))}}.site-header__logo{font-family:var(--font-heading);font-weight:600;font-size:18px;color:var(--color-text-primary);flex-shrink:0}.site-nav{display:none}@media(min-width:1024px){.site-nav{display:block;margin-inline:auto}}.site-nav__list{display:flex;align-items:center;gap:var(--space-8)}.site-nav__link{position:relative;font-size:16px;font-weight:500;color:var(--color-text-secondary);padding-block:var(--space-2);transition:color var(--transition-fast);text-decoration:none}.site-nav__link:hover{color:var(--color-text-primary)}.site-nav__item--has-dropdown{position:relative}.site-nav__trigger{display:inline-flex;align-items:center;gap:6px;background:transparent;border:none;font-family:inherit;font-size:16px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;padding-block:var(--space-2);transition:color var(--transition-fast)}.site-nav__trigger:hover,.site-nav__item--has-dropdown:hover .site-nav__trigger,.site-nav__item--has-dropdown.is-open .site-nav__trigger{color:var(--color-text-primary)}.site-nav__chevron{display:inline-block;transition:transform .22s cubic-bezier(.16,1,.3,1);color:var(--color-text-muted)}.site-nav__item--has-dropdown:hover .site-nav__chevron,.site-nav__item--has-dropdown.is-open .site-nav__chevron{transform:rotate(180deg);color:var(--color-text-primary)}.mega-menu{position:absolute;top:100%;left:50%;transform:translate(-50%) translateY(8px) scale(.97);padding-top:12px;opacity:0;visibility:hidden;pointer-events:none;z-index:1000;transition:opacity .18s cubic-bezier(.16,1,.3,1),transform .18s cubic-bezier(.16,1,.3,1),visibility .18s}.site-nav__item--has-dropdown:hover .mega-menu,.site-nav__item--has-dropdown:focus-within .mega-menu,.site-nav__item--has-dropdown.is-open .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%) translateY(0) scale(1)}.mega-menu__inner{width:580px;background:#ffffffe0;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(216,211,195,.8);border-radius:20px;box-shadow:0 1px 2px #12151a08,0 16px 40px -8px #12151a1f,0 2px 8px -2px #12151a0a;padding:16px}.mega-menu__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.mega-menu__card{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:14px;background-color:transparent;border:1px solid transparent;text-decoration:none;transition:background-color .16s cubic-bezier(.4,0,.2,1),border-color .16s cubic-bezier(.4,0,.2,1),transform .16s cubic-bezier(.4,0,.2,1),box-shadow .16s cubic-bezier(.4,0,.2,1)}.mega-menu__card:hover{background-color:#fffffff2;border-color:#d8d3c3b3;transform:translateY(-1px);box-shadow:0 4px 14px #12151a0d}.mega-menu__icon-box{display:flex;align-items:center;justify-content:center;width:38px;height:38px;font-size:19px;line-height:1;border-radius:12px;background-color:var(--color-surface);border:1px solid rgba(216,211,195,.6);box-shadow:0 1px 3px #12151a08;flex-shrink:0;transition:transform .16s ease}.mega-menu__card:hover .mega-menu__icon-box{transform:scale(1.08)}.mega-menu__card-content{display:flex;flex-direction:column;gap:2px;min-width:0}.mega-menu__card-title{font-family:var(--font-heading);font-size:14.5px;font-weight:700;color:var(--color-text-primary);line-height:1.3}.mega-menu__card-desc{font-family:var(--font-body);font-size:12px;line-height:1.45;color:var(--color-text-secondary)}:root[data-theme=dark] .mega-menu__inner{background:#1a1d22e0;border-color:#ffffff1a;box-shadow:0 16px 40px #0006}:root[data-theme=dark] .mega-menu__card:hover{background-color:#242931e6;border-color:#ffffff1f;box-shadow:0 4px 14px #00000040}:root[data-theme=dark] .mega-menu__icon-box{background-color:#242932;border-color:#ffffff1a}.site-nav__link[aria-current=page]{color:var(--color-accent-500)}.site-nav__link[aria-current=page]:after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background-color:var(--color-accent-500)}.site-header__search-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:background-color var(--transition-fast),color var(--transition-fast)}.site-header__search-toggle:hover{background-color:var(--color-gray-100);color:var(--color-text-primary)}.site-header__menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-md);color:var(--color-text-primary)}.site-header__menu-toggle:hover{background-color:var(--color-gray-100)}@media(min-width:1024px){.site-header__menu-toggle{display:none}}.mobile-nav{position:fixed;inset:0;z-index:100;background-color:var(--color-surface);padding:var(--space-24) var(--space-6) var(--space-6);transform:translate(100%);transition:transform var(--transition-slow)}.mobile-nav:not([hidden]){transform:translate(0)}@media(min-width:1024px){.mobile-nav{display:none}}.mobile-nav__list{display:flex;flex-direction:column;gap:var(--space-6)}.mobile-nav__link{font-family:var(--font-heading);font-size:18px;font-weight:600;color:var(--color-text-primary)}.site-nav__link:active{color:var(--color-text-primary)}.site-header__search-toggle:active,.site-header__menu-toggle:active{background-color:var(--color-gray-200)}.mobile-nav__link:active{color:var(--color-accent-600)}.hero{max-width:min(calc(100% - var(--space-6) * 2),1000px);margin-inline:auto;margin-block:var(--space-8) var(--space-8);background:linear-gradient(180deg,#fff,#faf8f3);border:1px solid rgba(216,211,195,.85);border-radius:28px;box-shadow:inset 0 1px #ffffffe6,0 1px 2px #12151a08,0 8px 24px -4px #12151a0d,0 20px 48px -12px #12151a0a;padding:44px 20px 48px;text-align:center;display:flex;flex-direction:column;align-items:center;position:relative;overflow:hidden}@media(min-width:768px){.hero{margin-block:var(--space-10) var(--space-10);padding:64px 36px 68px;border-radius:32px}}@media(min-width:1024px){.hero{margin-block:var(--space-12) var(--space-12);padding:80px 48px 84px}}.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;border-radius:9999px;background-color:#fff;border:1px solid rgba(216,211,195,.9);box-shadow:0 1px 3px #12151a0a,0 2px 6px #12151a05;color:var(--color-text-primary);font-family:var(--font-body);font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:var(--space-6);user-select:none;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.hero__eyebrow:hover{transform:translateY(-1px);box-shadow:0 2px 8px #12151a12}.hero__eyebrow-dot{width:6.5px;height:6.5px;border-radius:50%;background-color:var(--color-accent-500);box-shadow:0 0 0 3px #326f3426;display:inline-block;flex-shrink:0}.hero__title{font-family:var(--font-heading);font-weight:800;font-size:32px;line-height:1.16;letter-spacing:-.025em;color:var(--color-text-primary);max-width:20ch;margin-inline:auto;text-wrap:balance}@media(min-width:768px){.hero__title{font-size:46px;line-height:1.12;letter-spacing:-.03em}}@media(min-width:1024px){.hero__title{font-size:56px;line-height:1.08;letter-spacing:-.035em}}.hero__description{font-family:var(--font-body);font-size:16.5px;line-height:1.7;color:var(--color-text-secondary);margin-top:var(--space-5);max-width:58ch;margin-inline:auto;text-wrap:pretty}@media(min-width:768px){.hero__description{font-size:18.5px;line-height:1.75;margin-top:var(--space-6)}}.hero__actions{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);margin-top:var(--space-8);width:100%}@media(min-width:480px){.hero__actions{flex-direction:row;gap:var(--space-4);width:auto}}.button--hero-primary{height:48px;padding-inline:28px;border-radius:9999px;background-color:var(--color-gray-900);color:#fff!important;font-size:15px;font-weight:600;letter-spacing:-.01em;border:1px solid transparent;box-shadow:0 4px 14px #12151a26,0 1px 2px #12151a14;transition:all .2s cubic-bezier(.4,0,.2,1);text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.button--hero-primary:hover{background-color:#000;color:#fff!important;transform:translateY(-2px);box-shadow:0 8px 24px #12151a38}.button--hero-primary:active{transform:translateY(0);box-shadow:0 2px 6px #12151a1f}.button--hero-secondary{height:48px;padding-inline:26px;border-radius:9999px;background-color:#fff;color:var(--color-text-primary)!important;font-size:15px;font-weight:600;letter-spacing:-.01em;border:1px solid var(--color-border);box-shadow:0 1px 3px #12151a0a;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}.button--hero-secondary:hover{background-color:var(--color-gray-50);border-color:var(--color-gray-400);color:var(--color-text-primary)!important;transform:translateY(-2px);box-shadow:0 6px 18px #12151a14}.button--hero-secondary:active{transform:translateY(0);box-shadow:0 1px 3px #12151a0a}.button--hero-secondary .hero__arrow{display:inline-block;transition:transform .2s ease;font-size:16px;line-height:1}.button--hero-secondary:hover .hero__arrow{transform:translate(4px)}:root[data-theme=dark] .hero{background:linear-gradient(180deg,#1c2027,#15181e);border-color:#ffffff14;box-shadow:inset 0 1px #ffffff0d,0 8px 32px #00000059}:root[data-theme=dark] .hero__eyebrow{background-color:#1f242c;border-color:#ffffff1a;color:var(--color-gray-800)}:root[data-theme=dark] .hero__eyebrow-dot{background-color:var(--color-accent-400);box-shadow:0 0 0 3px #589f4f40}:root[data-theme=dark] .button--hero-primary{background-color:#fff;color:#12151a!important;box-shadow:0 4px 14px #ffffff1f}:root[data-theme=dark] .button--hero-primary:hover{background-color:#f2f2ef;color:#12151a!important;box-shadow:0 8px 24px #ffffff2e}:root[data-theme=dark] .button--hero-secondary{background-color:#1c2027;border-color:#ffffff1f;color:var(--color-gray-900)!important}:root[data-theme=dark] .button--hero-secondary:hover{background-color:#252b34;border-color:#fff3;color:var(--color-gray-900)!important}.button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-family:var(--font-body);font-weight:600;border-radius:var(--radius-md);white-space:nowrap;cursor:pointer;transition:background-color var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.button:active{transition-duration:0s}.button--small{height:32px;padding-inline:var(--space-3);font-size:14px;gap:var(--space-1)}.button--medium{height:40px;padding-inline:var(--space-5);font-size:16px}.button--large{height:48px;padding-inline:var(--space-8);font-size:16px}.button--primary{background-color:var(--color-warning);color:#fff;box-shadow:0 6px 12px #b688242e}.button--primary:hover{background-color:#9c6e1d}.button--primary:active{background-color:#805817}.button--secondary{background-color:var(--color-accent-500);color:#fff}.button--secondary:hover{background-color:var(--color-accent-600)}.button--secondary:active{background-color:var(--color-accent-700)}.button:focus-visible{outline:2px solid var(--color-warning);outline-offset:2px}.button--outline{background-color:transparent;color:var(--color-text-primary);border:1px solid var(--color-gray-300)}.button--outline:hover{background-color:var(--color-gray-50);border-color:var(--color-accent-300)}.button--outline:active{background-color:var(--color-gray-100)}.button--ghost{background-color:transparent;color:var(--color-text-primary)}.button--ghost:hover{background-color:var(--color-gray-100)}.button--ghost:active{background-color:var(--color-gray-200)}.button--text{height:auto;padding:0;background-color:transparent;color:var(--color-accent-500);font-weight:600;border-radius:0}.button--text:hover{text-decoration:underline;text-underline-offset:3px}.button--text:active{color:var(--color-accent-700)}.button--icon{width:40px;height:40px;padding:0;background-color:transparent;color:var(--color-text-secondary);border-radius:var(--radius-md)}.button--icon:hover{background-color:var(--color-gray-100)}.button--icon:active{background-color:var(--color-gray-200)}.button--danger{background-color:var(--color-error);color:#fff}.button--danger:hover{background-color:#a22c24}.button--success{background-color:var(--color-success);color:#fff}.button--success:hover{background-color:#197449}.button:disabled,.button[aria-disabled=true]{background-color:var(--color-gray-200);color:var(--color-gray-400);border-color:transparent;cursor:not-allowed;pointer-events:none}.button--loading{color:transparent;position:relative;opacity:.8;pointer-events:none}.button:focus-visible{outline:2px solid var(--color-accent-300);outline-offset:2px}.article-card-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:768px){.article-card-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.article-card-grid{grid-template-columns:repeat(3,1fr);gap:var(--space-6)}}.article-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;height:100%;transition:box-shadow var(--transition-base),border-color var(--transition-base)}.article-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-accent-100)}.article-card__link{display:flex;flex-direction:column;height:100%}.article-card__image{width:100%;aspect-ratio:16 / 9;object-fit:cover;transition:filter var(--transition-base)}.article-card:hover .article-card__image{filter:brightness(.98)}.article-card__category{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent-500);padding:var(--space-5) var(--space-5) 0}.article-card__title{padding:var(--space-2) var(--space-5) 0;color:var(--color-text-primary)}.article-card__excerpt{padding:var(--space-2) var(--space-5) 0;font-size:15px;line-height:1.6;color:var(--color-text-secondary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-card__meta{margin-top:auto;padding:var(--space-4) var(--space-5) var(--space-5);font-size:13px;font-weight:500;color:var(--color-text-muted);display:flex;align-items:center;gap:var(--space-1)}.article-card--horizontal .article-card__link{flex-direction:row;align-items:center;gap:var(--space-4);padding:var(--space-4)}.article-card--horizontal .article-card__image{width:96px;height:96px;aspect-ratio:1 / 1;border-radius:var(--radius-md);flex-shrink:0}.article-card--horizontal .article-card__body{display:flex;flex-direction:column;gap:var(--space-1)}.article-card--horizontal .article-card__category,.article-card--horizontal .article-card__title,.article-card--horizontal .article-card__meta{padding:0;margin:0}.article-card--horizontal .article-card__title{font-size:16px}.article-card__link{position:relative}.article-card__popular-badge{position:absolute;top:var(--space-3);left:var(--space-3);z-index:2;display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#ff9d2e,#ff5f6d);color:#fff;font-size:12px;font-weight:700;letter-spacing:.02em;padding:4px 10px;border-radius:var(--radius-full);box-shadow:0 2px 8px #ff5f6d59;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.article-card:hover .article-card__popular-badge{transform:translateY(-2px);box-shadow:0 4px 12px #ff5f6d73}.article-card__progress{display:block;height:3px;background-color:var(--color-gray-100, #eee);overflow:hidden}.article-card__progress-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--color-accent-300),var(--color-accent-500));transition:width .6s cubic-bezier(.22,1,.36,1)}.article-card:hover .article-card__progress-fill{width:100%}.featured-article-card{background-color:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--transition-base)}.featured-article-card:hover{box-shadow:var(--shadow-lg)}.featured-article-card__link{display:flex;flex-direction:column}.featured-article-card__image{width:100%;aspect-ratio:16 / 9;object-fit:cover}.featured-article-card__category{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent-500);padding:var(--space-8) var(--space-8) 0}.featured-article-card__title{padding:var(--space-3) var(--space-8) 0;font-size:26px;color:var(--color-text-primary)}.featured-article-card__excerpt{padding:var(--space-3) var(--space-8) 0;color:var(--color-text-secondary)}.featured-article-card__meta{padding:var(--space-4) var(--space-8) 0;font-size:13px;color:var(--color-text-muted)}.featured-article-card__cta{display:inline-block;padding:var(--space-4) var(--space-8) var(--space-8);font-weight:600;color:var(--color-accent-500)}.category-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4);width:100%}@media(min-width:768px){.category-card-grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1024px){.category-card-grid{grid-template-columns:repeat(4,1fr);gap:var(--space-6)}}.category-card{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-3);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-6);transition:border-color var(--transition-fast)}.category-card:hover{border-color:var(--color-accent-300)}.category-card img{color:var(--color-text-secondary);transition:color var(--transition-fast)}.category-card:hover img{filter:none}.category-card__name{font-family:var(--font-heading);font-weight:600;font-size:17px;color:var(--color-text-primary)}.category-card__count{font-size:13px;color:var(--color-text-muted)}.service-card-grid{display:grid;grid-template-columns:1fr;gap:var(--space-6);width:100%}@media(min-width:768px){.service-card-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.service-card-grid{grid-template-columns:repeat(3,1fr)}}.service-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-6);display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-3)}.service-card__title{color:var(--color-text-primary)}.service-card__description{font-size:14px;color:var(--color-text-secondary)}.stat-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-1)}.stat-card__value{font-family:var(--font-heading);font-size:32px;font-weight:700;color:var(--color-accent-500)}@media(min-width:1024px){.stat-card__value{font-size:40px}}.stat-card__label{font-size:13px;font-weight:500;color:var(--color-text-secondary)}.badge{display:inline-flex;align-items:center;background-color:var(--color-gray-100);color:var(--color-text-secondary);font-size:13px;font-weight:500;padding:var(--space-1) var(--space-3);border-radius:var(--radius-full)}.social-proof__grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:768px){.social-proof__grid{grid-template-columns:repeat(3,1fr)}}.social-card{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-6);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);text-decoration:none;transition:box-shadow var(--transition-base),border-color var(--transition-base),transform var(--transition-fast)}a.social-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-accent-300);transform:translateY(-2px)}.social-card__icon{flex-shrink:0;width:28px;height:28px}.social-card__body{display:flex;flex-direction:column;gap:2px;min-width:0}.social-card__value{font-family:var(--font-heading);font-size:22px;font-weight:700;color:var(--color-text-primary);line-height:1.2;font-variant-numeric:tabular-nums}.social-card__label{font-size:13px;font-weight:500;color:var(--color-text-muted)}.social-card__cta{margin-left:auto;flex-shrink:0;font-size:13px;font-weight:600;color:var(--color-accent-500);opacity:0;transform:translate(-4px);transition:opacity var(--transition-fast),transform var(--transition-fast)}a.social-card:hover .social-card__cta{opacity:1;transform:translate(0)}.social-card--youtube .social-card__value{color:red}.social-card--linkedin .social-card__value{color:#0a66c2}.input{height:44px;padding-inline:var(--space-4);font-family:var(--font-body);font-size:16px;color:var(--color-text-primary);background-color:var(--color-surface);border:1px solid var(--color-gray-300);border-radius:var(--radius-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input::placeholder{color:var(--color-gray-400)}.input:focus{outline:none;border-color:var(--color-accent-500);box-shadow:var(--shadow-xs),0 0 0 3px var(--color-accent-100)}.input:disabled{background-color:var(--color-gray-100);color:var(--color-gray-400);cursor:not-allowed}.input--error{border-color:var(--color-error)}.input--success{border-color:var(--color-success)}.form-hint{display:block;font-size:13px;margin-top:var(--space-1);color:var(--color-text-muted)}.form-hint--error{color:var(--color-error)}.form-hint--success{color:var(--color-success)}.textarea{min-height:120px;padding:var(--space-3) var(--space-4);font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--color-text-primary);background-color:var(--color-surface);border:1px solid var(--color-gray-300);border-radius:var(--radius-sm);resize:vertical;transition:border-color var(--transition-fast)}.textarea:focus{outline:none;border-color:var(--color-accent-500);box-shadow:var(--shadow-xs),0 0 0 3px var(--color-accent-100)}.select{height:44px;padding-inline:var(--space-4);padding-right:var(--space-8);font-size:16px;color:var(--color-text-primary);background-color:var(--color-surface);border:1px solid var(--color-gray-300);border-radius:var(--radius-sm);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235B6472' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-4) center}.checkbox,.radio{width:18px;height:18px;border:1.5px solid var(--color-gray-300);accent-color:var(--color-accent-500)}.checkbox{border-radius:var(--radius-xs)}.radio{border-radius:var(--radius-full)}.toggle{position:relative;display:inline-block;width:40px;height:24px}.toggle input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.toggle__track{position:absolute;inset:0;background-color:var(--color-gray-300);border-radius:var(--radius-full);transition:background-color var(--transition-fast)}.toggle__thumb{position:absolute;top:3px;left:3px;width:18px;height:18px;background-color:#fff;border-radius:var(--radius-full);box-shadow:var(--shadow-sm);transition:transform var(--transition-fast)}.toggle input:checked+.toggle__track{background-color:var(--color-accent-500)}.toggle input:checked+.toggle__track .toggle__thumb{transform:translate(16px)}.file-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-10);text-align:center;background-color:var(--color-gray-50);border:1.5px dashed var(--color-gray-300);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),background-color var(--transition-fast)}.file-dropzone:hover,.file-dropzone--active{border-color:var(--color-accent-300);background-color:var(--color-accent-50)}.newsletter__input{flex:1;height:48px;padding-inline:var(--space-4);font-size:16px;color:var(--color-text-primary);background-color:#fff;border:1px solid transparent;border-radius:var(--radius-sm)}.newsletter__input::placeholder{color:var(--color-gray-400)}.newsletter__input:focus{outline:none;box-shadow:0 0 0 3px #ffffff40}.form-field{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-5)}.form-label{font-size:14px;font-weight:600;color:var(--color-text-primary)}.form-label__optional{font-weight:400;color:var(--color-text-muted)}.form-field .input,.form-field .textarea{width:100%}.contact-form{max-width:480px;margin-inline:auto;text-align:left}.site-footer{border-top:1px solid var(--color-border);background-color:var(--color-background);padding-block:var(--space-16)}.site-footer__grid{display:flex;flex-direction:column;gap:var(--space-8);padding-inline:var(--space-5);margin-inline:auto}@media(min-width:768px){.site-footer__grid{flex-direction:row;justify-content:space-between;padding-inline:var(--space-10)}}@media(min-width:1024px){.site-footer__grid{padding-inline:var(--space-16);max-width:calc(var(--container-max) + 2 * var(--space-16))}}.site-footer__brand{max-width:280px}.site-footer__logo{font-family:var(--font-heading);font-weight:600;font-size:15px;color:var(--color-text-secondary)}.site-footer__tagline{font-size:14px;color:var(--color-text-muted);margin-top:var(--space-2)}.site-footer__nav ul{display:flex;flex-direction:column;gap:var(--space-3)}.site-footer__nav a{font-size:14px;color:var(--color-text-secondary);transition:color var(--transition-fast)}.site-footer__nav a:hover{color:var(--color-text-primary)}.site-footer__social{display:flex;gap:var(--space-4);align-items:flex-start}.site-footer__social a{color:var(--color-text-secondary);transition:color var(--transition-fast)}.site-footer__social a:hover{color:var(--color-accent-500)}.site-footer__bottom{display:flex;flex-direction:column;gap:var(--space-3);align-items:center;text-align:center;padding:var(--space-6) var(--space-5) 0;margin-top:var(--space-8);border-top:1px solid var(--color-divider);font-size:13px;color:var(--color-text-muted)}@media(min-width:768px){.site-footer__bottom{flex-direction:row;justify-content:space-between;padding-inline:var(--space-10)}}@media(min-width:1024px){.site-footer__bottom{padding-inline:var(--space-16);max-width:calc(var(--container-max) + 2 * var(--space-16));margin-inline:auto}}.site-footer__legal{display:flex;gap:var(--space-4)}.site-footer__legal a{color:var(--color-text-muted);transition:color var(--transition-fast)}.site-footer__legal a:hover{color:var(--color-text-primary)}.site-footer__nav a:active,.site-footer__legal a:active{color:var(--color-accent-600)}.site-footer__social a:active{color:var(--color-accent-700)}.breadcrumb{width:100%;max-width:calc(var(--container-max) + 2 * var(--space-16));margin-inline:auto;padding-inline:var(--space-5);padding-top:var(--space-8)}@media(min-width:768px){.breadcrumb{padding-inline:var(--space-10)}}@media(min-width:1024px){.breadcrumb{padding-inline:var(--space-16)}}.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-2);font-size:13px;color:var(--color-text-muted)}.breadcrumb__item{display:flex;align-items:center;gap:var(--space-2)}.breadcrumb__link{color:var(--color-text-muted);transition:color var(--transition-fast)}.breadcrumb__link:hover{color:var(--color-text-primary)}.breadcrumb__current{color:var(--color-text-secondary);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:40ch}.breadcrumb__separator{color:var(--color-gray-300);display:inline-flex}.breadcrumb__separator img{width:14px;height:14px}.pagination{display:flex;align-items:center;justify-content:center;gap:var(--space-2);margin-top:var(--space-16)}.pagination__item{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding-inline:var(--space-2);border-radius:var(--radius-md);font-size:14px;font-weight:500;color:var(--color-text-secondary);transition:background-color var(--transition-fast),color var(--transition-fast)}.pagination__item:hover{background-color:var(--color-gray-100);color:var(--color-text-primary)}.pagination__item[aria-current=page]{background-color:var(--color-accent-500);color:#fff}.pagination__item[aria-current=page]:hover{background-color:var(--color-accent-500)}.pagination__ellipsis{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;color:var(--color-text-muted);font-size:14px}.pagination__nav-button{display:inline-flex;align-items:center;gap:var(--space-1)}.pagination__nav-button[aria-disabled=true]{color:var(--color-gray-300);pointer-events:none}.pagination__nav-button img{width:16px;height:16px}.pagination__numbers{display:none}@media(min-width:640px){.pagination__numbers{display:flex;align-items:center;gap:var(--space-2)}}@media(max-width:639px){.pagination__nav-button{flex:1;justify-content:center;height:40px;border:1px solid var(--color-border);border-radius:var(--radius-md)}}.pagination__item:active{background-color:var(--color-gray-200)}.pagination__item[aria-current=page]:active{background-color:var(--color-accent-700)}.filter-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-4);padding-bottom:var(--space-6);margin-bottom:var(--space-8);border-bottom:1px solid var(--color-divider)}.filter-bar__group{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3)}.filter-bar__select{height:36px;padding-inline:var(--space-3);padding-right:var(--space-8);font-size:14px;color:var(--color-text-secondary);background-color:var(--color-surface);border:1px solid var(--color-gray-300);border-radius:var(--radius-sm);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B6472' stroke-width='1.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-3) center}.filter-bar__select:focus-visible{outline:2px solid var(--color-accent-300);outline-offset:2px}.filter-bar__mobile-toggle{display:inline-flex}@media(min-width:768px){.filter-bar__mobile-toggle{display:none}}.filter-bar__group--desktop{display:none}@media(min-width:768px){.filter-bar__group--desktop{display:flex}}.filter-bar__result-count{font-size:13px;color:var(--color-text-muted)}.active-filters{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-6)}.active-filters__chip{display:inline-flex;align-items:center;gap:var(--space-1);background-color:var(--color-accent-50);color:var(--color-accent-700);font-size:13px;font-weight:500;padding:var(--space-1) var(--space-2) var(--space-1) var(--space-3);border-radius:var(--radius-full)}.active-filters__chip button{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:var(--radius-full);color:inherit}.active-filters__chip button:hover{background-color:var(--color-accent-100)}.bottom-sheet{position:fixed;left:0;right:0;bottom:0;z-index:110;max-height:80vh;overflow-y:auto;background-color:var(--color-surface);border-top-left-radius:var(--radius-xl);border-top-right-radius:var(--radius-xl);box-shadow:var(--shadow-xl);transform:translateY(100%);transition:transform var(--transition-slow);padding-bottom:env(safe-area-inset-bottom,0)}.bottom-sheet.is-open{transform:translateY(0)}.bottom-sheet__handle{width:36px;height:4px;border-radius:var(--radius-full);background-color:var(--color-gray-300);margin:var(--space-3) auto 0}.bottom-sheet__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-divider)}.bottom-sheet__title{font-family:var(--font-heading);font-weight:600;font-size:16px;color:var(--color-text-primary)}.bottom-sheet__close{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);color:var(--color-text-secondary)}.bottom-sheet__close:hover{background-color:var(--color-gray-100)}.bottom-sheet__body{padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-5)}.bottom-sheet__body .filter-bar__group{flex-direction:column;align-items:stretch;gap:var(--space-2)}.bottom-sheet__body .filter-bar__select{width:100%;height:44px}.bottom-sheet__footer{display:flex;gap:var(--space-3);padding:var(--space-5);border-top:1px solid var(--color-divider)}.bottom-sheet__footer .button{flex:1}.filter-bar__mobile-toggle{display:inline-flex;align-items:center;gap:var(--space-2)}.filter-bar__mobile-toggle img{width:16px;height:16px}@media(min-width:768px){.bottom-sheet{display:none}}.tag-cloud{display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:center}.tag-cloud__item{display:inline-flex;align-items:center;min-height:44px;padding:var(--space-2) var(--space-5);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:14px;color:var(--color-text-secondary);transition:border-color var(--transition-fast),color var(--transition-fast)}.tag-cloud__item:hover{border-color:var(--color-accent-300);color:var(--color-accent-600)}.tag-cloud__item--frequent{font-weight:700;color:var(--color-text-primary)}.tag-cloud__item:active{border-color:var(--color-accent-500);color:var(--color-accent-700)}.article-header{max-width:var(--container-reading);margin-inline:auto;padding-inline:var(--space-5);padding-top:var(--space-8);padding-bottom:var(--space-10)}.article-header__subtitle{font-size:18px;line-height:1.6;color:var(--color-text-secondary);margin-top:var(--space-3)}.article-header__tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-6)}.article-meta{display:flex;align-items:center;gap:var(--space-3);margin-top:var(--space-6)}.article-meta__avatar{width:40px;height:40px;border-radius:var(--radius-full);border:1px solid var(--color-border);flex-shrink:0}.article-meta__author{font-size:15px;font-weight:600;color:var(--color-text-primary)}.article-meta__details{font-size:13px;color:var(--color-text-muted);display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1)}.article-meta__details img{width:13px;height:13px;margin-right:2px;vertical-align:-2px}.article-header__pdf{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);margin-top:var(--space-7)}.article-header__pdf .pdf-btn{display:inline-flex;align-items:center;justify-content:center;background-color:var(--color-warning);color:#fff;border:none;border-radius:var(--radius-md);padding:var(--space-3) var(--space-5);font-weight:600;cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast)}.article-header__pdf .pdf-btn:hover{background-color:#9c6e1d}.article-header__pdf .pdf-btn:active{transform:translateY(1px)}.article-header__pdf .pdf-btn[aria-busy=true]{opacity:.8;cursor:progress}.article-header__pdf .pdf-btn{position:relative;overflow:visible}.article-header__pdf .pdf-label{display:inline-block;vertical-align:middle}.article-header__pdf .pdf-spinner{display:inline-block;width:16px;height:16px;margin-left:var(--space-3);vertical-align:middle;border-radius:50%;border:2px solid rgba(255,255,255,.25);border-top-color:#fffffff2;transform:rotate(0) scale(.85);opacity:0;transition:opacity .14s ease,transform .14s ease;box-sizing:border-box}.article-header__pdf .pdf-btn.is-loading .pdf-spinner{opacity:1;transform:rotate(360deg) scale(1);animation:pdf-spin .9s linear infinite}.article-header__pdf .pdf-btn.is-loading .pdf-label{opacity:.9}@keyframes pdf-spin{to{transform:rotate(360deg)}}.article-header__cover{width:100%;max-width:calc(var(--container-max) + 2 * var(--space-16));margin-inline:auto;padding-inline:var(--space-5)}.article-header__cover img{width:100%;aspect-ratio:16 / 9;object-fit:cover;border-radius:var(--radius-lg)}.article-layout{max-width:calc(var(--container-max) + 2 * var(--space-16));margin-inline:auto;padding-inline:var(--space-5);padding-block:var(--space-16);display:grid;gap:var(--space-10)}@media(min-width:1440px){.article-layout{grid-template-columns:1fr 240px;align-items:start}}.article-body{max-width:var(--container-reading);margin-inline:auto;width:100%}@media(min-width:1440px){.article-body{margin-inline:0}}.toc{display:none}@media(min-width:1440px){.toc{display:block;position:sticky;top:calc(72px + var(--space-6))}}.toc__title{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-3)}.toc__list{display:flex;flex-direction:column;gap:var(--space-2);border-left:1px solid var(--color-border)}.toc__link{font-size:14px;color:var(--color-text-secondary);padding-left:var(--space-4);padding-block:2px;border-left:2px solid transparent;margin-left:-1px;transition:color var(--transition-fast),border-color var(--transition-fast)}.toc__link:hover{color:var(--color-text-primary)}.toc__link--h3{padding-left:var(--space-6);font-size:13px}.toc__link.is-active{color:var(--color-accent-500);border-left-color:var(--color-accent-500);font-weight:500}.toc-mobile{max-width:var(--container-reading);margin:0 auto var(--space-10);padding-inline:var(--space-5)}@media(min-width:1440px){.toc-mobile{display:none}}.toc-mobile__trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--space-4) var(--space-5);background-color:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;font-weight:600;color:var(--color-text-primary)}.toc-mobile__trigger img{width:16px;height:16px;transition:transform var(--transition-base)}.toc-mobile__trigger[aria-expanded=true] img{transform:rotate(180deg)}.toc-mobile__panel{padding:var(--space-4) var(--space-5);border:1px solid var(--color-border);border-top:none;border-radius:0 0 var(--radius-md) var(--radius-md)}.toc-mobile__panel .toc__list{border-left:none}.toc-mobile__panel .toc__link{padding-left:var(--space-3)}.content-box{border-radius:var(--radius-md);padding:var(--space-6);margin:var(--space-8) 0}.content-box__label{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:var(--space-1)}.content-box__title{font-family:var(--font-heading);font-size:18px;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-3)}.content-box p:last-child{margin-bottom:0}.content-box p{color:var(--color-text-primary);margin-bottom:var(--space-3)}.content-box--definition{background-color:var(--color-info-bg);border-left:3px solid var(--color-info)}.content-box--definition .content-box__label{color:var(--color-info)}.content-box--theorem{background-color:var(--color-surface);border:1px solid var(--color-border);border-left:4px solid var(--color-accent-500)}.content-box--theorem .content-box__label{color:var(--color-accent-600)}.content-box--proof{background-color:var(--color-gray-50);padding:0;overflow:hidden}.content-box--proof .content-box__trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--space-4) var(--space-6);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-secondary)}.content-box--proof .content-box__trigger img{width:16px;height:16px;transition:transform var(--transition-base)}.content-box--proof .content-box__trigger[aria-expanded=true] img{transform:rotate(180deg)}.content-box--proof .content-box__panel{padding:0 var(--space-6) var(--space-6)}.content-box--proof .content-box__qed{display:block;text-align:right;font-size:16px;color:var(--color-text-muted);margin-top:var(--space-3)}.content-box--example{background-color:var(--color-success-bg);border-left:3px solid var(--color-success)}.content-box--example .content-box__label{color:var(--color-success)}.content-box--warning{background-color:var(--color-warning-bg);border-left:3px solid var(--color-warning)}.content-box--warning .content-box__label{color:var(--color-warning)}.content-box--exercise{background-color:var(--color-surface);border:1.5px dashed var(--color-accent-300)}.content-box--exercise .content-box__label{color:var(--color-accent-600)}.content-box--exercise .content-box__solution-trigger{font-size:14px;font-weight:600;color:var(--color-accent-500);margin-top:var(--space-2)}.content-box--exercise .content-box__solution-panel{margin-top:var(--space-3);padding:var(--space-4);background-color:var(--color-gray-50);border:1px dashed var(--color-gray-300);border-radius:var(--radius-sm);font-size:15px}.math-block{overflow-x:auto;padding:var(--space-4) 0;margin:var(--space-6) 0;text-align:center}.code-block{margin:var(--space-6) 0;border-radius:var(--radius-md);border:1px solid var(--color-border);overflow:hidden;max-width:840px;margin-inline:auto}.code-block__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-2) var(--space-4);background-color:var(--color-gray-100)}.code-block__lang{display:flex;align-items:center;gap:var(--space-2);font-size:13px;font-weight:600;color:var(--color-text-secondary)}.code-block__lang img{width:16px;height:16px}.code-block__copy{display:inline-flex;align-items:center;gap:var(--space-1);font-size:13px;color:var(--color-text-secondary);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);transition:background-color var(--transition-fast)}.code-block__copy:hover{background-color:var(--color-gray-200)}.code-block__copy img{width:14px;height:14px}.code-block pre{margin:0;border:none;border-radius:0;display:flex;overflow-x:auto}.code-block__line-numbers{user-select:none;color:var(--color-gray-400);padding-right:var(--space-4);text-align:right;border-right:1px solid var(--color-divider);margin-right:var(--space-4)}.tok-keyword{color:var(--color-accent-600)}.tok-string{color:var(--color-success)}.tok-number{color:var(--color-warning)}.tok-comment{color:var(--color-gray-500)}.tok-function{color:var(--color-accent-700)}.blockquote-attribution{display:block;margin-top:var(--space-3);font-family:var(--font-body);font-style:normal;font-size:13px;color:var(--color-text-muted)}.article-footer{max-width:var(--container-reading);margin-inline:auto;padding-inline:var(--space-5);padding-top:var(--space-10);border-top:1px solid var(--color-divider)}@media(min-width:1440px){.article-footer{margin-inline:0;max-width:100%}}.article-footer__tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-8)}.article-footer__share{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-10)}.article-footer__share span{font-size:13px;color:var(--color-text-muted)}.author-card{display:flex;gap:var(--space-5);align-items:flex-start;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-8);margin-bottom:var(--space-10)}.author-card__avatar{width:64px;height:64px;border-radius:var(--radius-full);flex-shrink:0}.author-card__name{font-family:var(--font-heading);font-weight:600;font-size:17px;color:var(--color-text-primary)}.author-card__role{font-size:13px;color:var(--color-text-muted);margin-top:2px}.author-card__bio{font-size:14px;color:var(--color-text-secondary);margin-top:var(--space-3)}.author-card__link{display:inline-block;margin-top:var(--space-3)}.article-nav{display:grid;grid-template-columns:1fr;gap:var(--space-4);margin-bottom:var(--space-10)}@media(min-width:640px){.article-nav{grid-template-columns:1fr 1fr}}.article-nav__link{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast)}.article-nav__link:hover{border-color:var(--color-accent-300)}.article-nav__link--next{text-align:right;align-items:flex-end}.article-nav__direction{display:flex;align-items:center;gap:var(--space-1);font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--color-text-muted)}.article-nav__direction img{width:14px;height:14px}.article-nav__title{font-size:15px;font-weight:600;color:var(--color-text-primary)}.comments-placeholder{padding:var(--space-8);text-align:center;background-color:var(--color-gray-50);border-radius:var(--radius-md);margin-bottom:var(--space-10)}.comments-placeholder p:first-child{font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-1)}.comments-placeholder p{font-size:14px;color:var(--color-text-muted)}.footnotes{max-width:var(--container-reading);margin:var(--space-10) auto 0;padding:var(--space-6) var(--space-5) 0;border-top:1px solid var(--color-divider)}.footnotes__title{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-3)}.footnotes__list{font-size:14px;color:var(--color-text-secondary);padding-left:var(--space-5);display:flex;flex-direction:column;gap:var(--space-2)}.footnote-ref{color:var(--color-accent-500);font-weight:600;text-decoration:none;padding:0 2px}.footnote-back{color:var(--color-accent-500);margin-left:var(--space-1)}.bibliography{max-width:var(--container-reading);margin:var(--space-10) auto 0;padding:var(--space-6) var(--space-5) 0;border-top:1px solid var(--color-divider)}.bibliography__title{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-3)}.bibliography__list{display:flex;flex-direction:column;gap:var(--space-3);counter-reset:bib}.bibliography__item{display:flex;gap:var(--space-3);font-size:14px;color:var(--color-text-secondary);counter-increment:bib}.bibliography__item:before{content:"[" counter(bib) "]";color:var(--color-text-muted);flex-shrink:0;font-family:var(--font-mono);font-size:13px}.bibliography__item a{color:var(--color-accent-500)}.article-footer__related-title{margin-bottom:var(--space-6)}.toc__link:active{color:var(--color-accent-700)}.article-nav__link:active{border-color:var(--color-accent-500)}.author-card__link:active{color:var(--color-accent-700)}.code-block__copy:active{background-color:var(--color-gray-300)}.breadcrumb__link:active{color:var(--color-text-primary)}.accordion__trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--space-4) var(--space-5);text-align:left;font-family:var(--font-heading);font-weight:600;font-size:16px;color:var(--color-text-primary);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast)}.accordion__trigger:hover{border-color:var(--color-accent-300)}.accordion__trigger img{flex-shrink:0;transition:transform var(--transition-base)}.accordion__trigger[aria-expanded=true] img{transform:rotate(180deg)}.accordion__panel{padding:var(--space-4) var(--space-5);color:var(--color-text-secondary);font-size:15px}.error-page{min-height:calc(100svh - 372px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;max-width:560px;margin-inline:auto;padding:var(--space-24) var(--space-5)}.error-page__code{font-family:var(--font-heading);font-size:56px;font-weight:700;color:var(--color-gray-300);line-height:1}.error-page__title{margin-top:var(--space-6)}.error-page__description{margin-top:var(--space-3);color:var(--color-text-secondary)}.error-page__actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--space-4);margin-top:var(--space-8)}.error-page__search{margin-top:var(--space-10);width:100%;max-width:360px;display:flex;gap:var(--space-2)}.legal-page{max-width:var(--container-reading);margin-inline:auto;padding:var(--space-16) var(--space-5)}.legal-page__updated{font-size:13px;color:var(--color-text-muted);margin-bottom:var(--space-8)}.legal-page h2{margin-top:var(--space-10);margin-bottom:var(--space-3)}.legal-page p{color:var(--color-text-secondary);margin-bottom:var(--space-4)}.glass{background-color:#fafaf8d9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}:root[data-theme=dark] .glass{background-color:#101215d9}@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){.glass{background-color:var(--color-surface)}}.backdrop{position:fixed;inset:0;z-index:90;background-color:#0a0c0f73;opacity:0;transition:opacity var(--transition-base)}.backdrop.is-visible{opacity:1}:root[data-theme=dark] .backdrop{background-color:#0009}.search-overlay{position:fixed;inset:0;z-index:150;display:flex;align-items:flex-start;justify-content:center;padding-top:15vh;padding-inline:var(--space-5);background-color:#0a0c0f80;opacity:0;transition:opacity var(--transition-base)}.search-overlay.is-visible{opacity:1}.search-overlay__form{width:min(560px,100%);display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-lg);background-color:var(--color-surface);box-shadow:var(--shadow-xl)}.search-overlay__input{flex:1;border:none;outline:none;background:transparent;color:var(--color-text-primary);font-size:16px;padding:var(--space-3) var(--space-2)}.search-overlay__input::placeholder{color:var(--color-text-muted)}:root[data-theme=dark] .site-header.is-scrolled{background-color:#101215d9;border-bottom-color:var(--color-border)}.popover-surface{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-dropdown)}.weekly-problem__eyebrow{margin:0 0 var(--space-3);color:var(--color-gold-300);font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.weekly-problem-hero{padding:var(--space-16) 0 var(--space-10);background:var(--color-accent-50);border-bottom:1px solid var(--color-border)}.weekly-problem-hero__topline{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-4)}.weekly-problem__topic{color:var(--color-accent-600);font-size:14px;font-weight:700}.weekly-problem__difficulty{color:var(--color-gold-600);letter-spacing:.12em}.weekly-problem__title{max-width:760px;margin:var(--space-3) 0}.weekly-problem__meta{display:flex;flex-wrap:wrap;gap:var(--space-2);margin:0;color:var(--color-text-secondary)}.weekly-problem-countdown{display:inline-flex;align-items:baseline;gap:var(--space-3);margin-top:var(--space-8);padding:var(--space-3) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md)}.weekly-problem-countdown__label{color:var(--color-text-muted);font-size:13px}.weekly-problem-countdown__value{color:var(--color-accent-700);font-family:var(--font-mono);font-size:20px}.weekly-problem-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:var(--space-12);padding-top:var(--space-12);padding-bottom:var(--space-20);align-items:start}.weekly-problem-content{min-width:0}.weekly-problem-content__body{min-height:220px;padding:var(--space-8);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.weekly-problem-submit{position:sticky;top:var(--space-8);padding:var(--space-6);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.weekly-problem-submit__title{margin-top:0}.weekly-problem-submit__intro{color:var(--color-text-secondary);font-size:14px;line-height:1.6}.weekly-problem-form__status{min-height:24px;margin:var(--space-4) 0 0;font-size:14px}.weekly-problem-form__status[data-state=error]{color:var(--color-error)}.weekly-problem-form__status[data-state=success]{color:var(--color-success)}.weekly-problem-progress{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.65fr);gap:var(--space-12);padding-bottom:var(--space-20)}.weekly-problem-progress__caption{color:var(--color-text-muted);font-size:14px}.weekly-leaderboard{display:grid;gap:var(--space-2);margin:0;padding:0;list-style:none}.weekly-leaderboard__item{display:grid;grid-template-columns:40px 1fr auto;gap:var(--space-3);align-items:center;padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md)}.weekly-leaderboard__rank{color:var(--color-gold-600);font-family:var(--font-mono);font-weight:700}.weekly-leaderboard__name{color:var(--color-text-primary);font-weight:600}.weekly-leaderboard__solved{display:block;color:var(--color-text-muted);font-size:12px;font-weight:400}.weekly-leaderboard__score{color:var(--color-accent-600);font-family:var(--font-mono);font-weight:700}.weekly-leaderboard__state{color:var(--color-text-muted);padding:var(--space-4) 0}.weekly-progress-card{align-self:start;padding:var(--space-6);background:var(--color-accent-50);border:1px solid var(--color-accent-200);border-radius:var(--radius-lg)}.weekly-progress-card h2{margin-top:0}.weekly-progress-card__metrics{display:flex;gap:var(--space-8)}.weekly-progress-card__metrics div{display:grid;gap:var(--space-1)}.weekly-progress-card__metrics strong{color:var(--color-accent-700);font-family:var(--font-mono);font-size:28px}.weekly-progress-card__metrics span{color:var(--color-text-muted);font-size:13px}.weekly-progress-card__badges{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-6)}.weekly-progress-card__badge{padding:var(--space-2) var(--space-3);color:var(--color-gold-800);background:var(--color-gold-100);border:1px solid var(--color-gold-300);border-radius:var(--radius-full);font-size:13px}@media(max-width:767px){.weekly-problem-layout{grid-template-columns:1fr;gap:var(--space-8);padding-top:var(--space-8)}.weekly-problem-progress{grid-template-columns:1fr;gap:var(--space-8)}.weekly-problem-submit{position:static}.weekly-problem-content__body{padding:var(--space-5)}}.level-analysis-page{padding-block:var(--space-12) var(--space-20)}.level-analysis-hero,.level-analysis-step{width:min(100% - (var(--space-8) * 2),var(--container-max));margin-inline:auto}.level-analysis-hero{max-width:820px;margin-bottom:var(--space-12);text-align:center}.level-analysis-hero h1{margin-bottom:var(--space-4)}.level-analysis-hero>p:last-child{max-width:680px;margin-inline:auto;color:var(--color-text-secondary)}.level-analysis-step{margin-bottom:var(--space-12)}.level-analysis-step__eyebrow{margin-bottom:var(--space-2);color:var(--color-accent-600);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase}.level-analysis-group-grid,.level-analysis-level-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}.level-analysis-group-card,.level-analysis-level-card{display:grid;gap:var(--space-2);min-height:132px;padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-primary);text-align:left;cursor:pointer;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast)}.level-analysis-group-card:hover,.level-analysis-group-card:focus-visible,.level-analysis-level-card:hover,.level-analysis-level-card:focus-visible,.level-analysis-group-card[aria-pressed=true],.level-analysis-level-card[aria-pressed=true]{border-color:var(--color-accent-500);box-shadow:var(--shadow-md);outline:none;transform:translateY(-2px)}.level-analysis-group-card strong,.level-analysis-level-card strong{font-family:var(--font-heading);font-size:18px}.level-analysis-group-card span,.level-analysis-level-card span{color:var(--color-text-secondary);font-size:14px}.level-analysis-custom-level{display:block;max-width:520px;margin-top:var(--space-6)}.level-analysis-form{max-width:840px}.level-analysis-form__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5) var(--space-6);margin-bottom:var(--space-6)}.level-analysis-test-card,.level-analysis-upload{max-width:840px;padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface)}.level-analysis-test-card{margin-bottom:var(--space-8)}.level-analysis-test-meta{display:flex;gap:var(--space-8);margin:var(--space-5) 0}.level-analysis-test-meta div{display:grid;gap:var(--space-1)}.level-analysis-test-meta dt,.level-analysis-upload__hint{color:var(--color-text-muted);font-size:13px}.level-analysis-test-meta dd{margin:0;font-weight:700}.level-analysis-upload__header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}.level-analysis-upload__header h3{margin:0}.level-analysis-upload__description{margin:var(--space-3) 0 var(--space-6);color:var(--color-text-secondary)}.level-analysis-upload-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}.level-analysis-upload-slot{display:grid;align-content:start;gap:var(--space-3);min-height:180px;padding:var(--space-4);border:1px dashed var(--color-border);border-radius:var(--radius-sm);background:var(--color-background);cursor:pointer}.level-analysis-upload-slot[data-dragging=true]{border-color:var(--color-accent-500);background:var(--color-accent-50)}.level-analysis-upload-slot input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.level-analysis-upload-slot__preview{display:grid;min-height:110px;place-items:center;border-radius:var(--radius-xs);color:var(--color-text-muted);font-size:13px;text-align:center}.level-analysis-upload-slot__preview img{width:100%;height:110px;border-radius:var(--radius-xs);object-fit:cover}.level-analysis-step__status{min-height:1.5em;margin-top:var(--space-4);color:var(--color-text-secondary)}@media(max-width:768px){.level-analysis-hero,.level-analysis-step{width:min(100% - (var(--space-4) * 2),var(--container-max))}.level-analysis-group-grid,.level-analysis-level-list,.level-analysis-form__grid,.level-analysis-upload-grid{grid-template-columns:1fr}.level-analysis-test-meta{gap:var(--space-5)}}.level-analysis-report-topics{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-block:var(--space-6)}.level-analysis-report-heading,.level-analysis-report-columns,.level-analysis-report-summary{display:grid;gap:var(--space-4)}.level-analysis-report-heading{grid-template-columns:1fr auto;align-items:start}.level-analysis-report-heading h2,.level-analysis-report-heading p{margin:0}.level-analysis-report-heading p,.level-analysis-report-heading time,.level-analysis-report-topic small{color:var(--color-text-muted)}.level-analysis-report-summary{grid-template-columns:repeat(4,1fr);margin-block:var(--space-8)}.level-analysis-report-summary div{display:grid;gap:var(--space-2);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.level-analysis-report-summary span{color:var(--color-text-muted);font-size:13px}.level-analysis-report-summary strong{font-family:var(--font-heading);font-size:24px}.level-analysis-report-topics{display:grid;gap:var(--space-3)}.level-analysis-report-topic{display:grid;gap:var(--space-2);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.level-analysis-report-topic>div:first-child{display:flex;justify-content:space-between;gap:var(--space-3)}.level-analysis-report-topic__bar{height:8px;overflow:hidden;border-radius:var(--radius-full);background:var(--color-gray-200)}.level-analysis-report-topic__bar span{display:block;height:100%;border-radius:inherit;background:var(--color-accent-500)}.level-analysis-report-columns{grid-template-columns:repeat(2,1fr);margin-block:var(--space-8)}.level-analysis-report-cta{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--color-divider)}.level-analysis-report-cta p{margin:0;font-family:var(--font-heading);font-weight:700}@media(max-width:768px){.level-analysis-report-heading,.level-analysis-report-columns,.level-analysis-report-summary{grid-template-columns:1fr}.level-analysis-report-cta{align-items:stretch;flex-direction:column}}.level-analysis-report-topics p{margin:0;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.hub-weekly{max-width:min(calc(100% - var(--space-6) * 2),1040px);margin:0 auto var(--space-16);padding:0}.hub-weekly__card{display:grid;grid-template-columns:1fr;gap:var(--space-8);align-items:center;background:var(--color-surface);border:1px solid var(--color-border);border-radius:28px;padding:var(--space-8) var(--space-6);box-shadow:0 1px 2px #12151a08,0 10px 30px -6px #12151a0d;position:relative;overflow:hidden;transition:transform var(--transition-base),box-shadow var(--transition-base)}@media(min-width:768px){.hub-weekly__card{grid-template-columns:1.5fr .9fr;padding:var(--space-10) var(--space-10);border-radius:32px}}.hub-weekly__topline{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4)}.hub-weekly__badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:9999px;background-color:#326f3414;color:var(--color-accent-600);font-family:var(--font-body);font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.hub-weekly__difficulty{font-size:13px;font-weight:600;color:var(--color-gold-600);letter-spacing:.02em}.hub-weekly__title{font-family:var(--font-heading);font-size:clamp(22px,3.2vw,32px);font-weight:700;line-height:1.25;color:var(--color-text-primary);margin:0 0 var(--space-3)}.hub-weekly__description{font-family:var(--font-body);font-size:15.5px;line-height:1.65;color:var(--color-text-secondary);margin:0 0 var(--space-6);max-width:520px}.hub-weekly__meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3);margin-bottom:var(--space-6);font-size:13px;color:var(--color-text-muted)}.hub-weekly__meta-item{display:inline-flex;align-items:center;gap:6px}.hub-weekly__meta-dot{color:var(--color-gray-400)}.hub-weekly__actions{display:flex;align-items:center;gap:var(--space-4)}.hub-weekly__visual{display:flex;justify-content:center;align-items:center}.hub-weekly__counter-card{width:100%;max-width:260px;background:linear-gradient(135deg,var(--color-gray-50) 0%,var(--color-gray-100) 100%);border:1px solid var(--color-border);border-radius:24px;padding:var(--space-8) var(--space-6);text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--space-2);box-shadow:inset 0 1px #fffc,0 4px 12px #12151a08}.hub-weekly__counter-label{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted)}.hub-weekly__counter-number{font-family:var(--font-mono);font-size:clamp(56px,7vw,84px);font-weight:800;line-height:.9;color:var(--color-accent-700);letter-spacing:-.04em;margin:var(--space-1) 0}.hub-weekly__counter-status{display:inline-flex;align-items:center;padding:3px 10px;border-radius:9999px;background:var(--color-surface);border:1px solid var(--color-border);font-size:11.5px;font-weight:600;color:var(--color-text-primary)}.hub-level{max-width:min(calc(100% - var(--space-6) * 2),1040px);margin:0 auto var(--space-20);padding:var(--space-12) var(--space-6);background:linear-gradient(180deg,#fff9,#faf8f3cc);border:1px solid var(--color-border);border-radius:32px;box-shadow:0 1px 3px #12151a05,0 12px 32px -8px #12151a0a}@media(min-width:768px){.hub-level{padding:var(--space-16) var(--space-10)}}.hub-level__header{text-align:center;max-width:640px;margin:0 auto var(--space-12)}.hub-level__badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent-600);margin-bottom:var(--space-3)}.hub-level__title{font-family:var(--font-heading);font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.15;letter-spacing:-.025em;color:var(--color-text-primary);margin:0 0 var(--space-4)}.hub-level__subtitle{font-family:var(--font-body);font-size:16.5px;line-height:1.6;color:var(--color-text-secondary);margin:0}.hub-steps-grid{display:grid;grid-template-columns:1fr;gap:var(--space-6);margin-bottom:var(--space-12)}@media(min-width:768px){.hub-steps-grid{grid-template-columns:repeat(3,1fr)}}.hub-step-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:22px;padding:var(--space-8) var(--space-6);display:flex;flex-direction:column;box-shadow:0 1px 2px #12151a08;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s cubic-bezier(.16,1,.3,1),border-color .2s ease}.hub-step-card:hover{transform:translateY(-3px);border-color:#326f3459;box-shadow:0 12px 28px -6px #12151a14}.hub-step-card__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-5)}.hub-step-card__num{font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--color-accent-600);background:#326f3414;padding:4px 10px;border-radius:9999px;letter-spacing:.05em}.hub-step-card__icon{font-size:26px;line-height:1}.hub-step-card__title{font-family:var(--font-heading);font-size:18px;font-weight:700;color:var(--color-text-primary);margin:0 0 var(--space-3)}.hub-step-card__desc{font-family:var(--font-body);font-size:14px;line-height:1.6;color:var(--color-text-secondary);margin:0}.hub-level__cta{display:flex;justify-content:center}.latest-posts{max-width:min(calc(100% - var(--space-6) * 2),1040px);margin:0 auto var(--space-20);padding:0}.section-header__eyebrow{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--color-accent-600);margin-bottom:var(--space-2)}:root[data-theme=dark] .hub-weekly__card{background:#191c22;border-color:#ffffff14;box-shadow:0 10px 30px #0006}:root[data-theme=dark] .hub-weekly__counter-card{background:#20242d;border-color:#ffffff14}:root[data-theme=dark] .hub-weekly__counter-number{color:var(--color-accent-400)}:root[data-theme=dark] .hub-weekly__counter-status{background:#191c22;border-color:#ffffff1a;color:var(--color-gray-900)}:root[data-theme=dark] .hub-level{background:linear-gradient(180deg,#1a1d23,#15181e);border-color:#ffffff14;box-shadow:0 12px 36px #0006}:root[data-theme=dark] .hub-step-card{background:#1f232b;border-color:#ffffff14}:root[data-theme=dark] .hub-step-card:hover{background:#252a34;border-color:#ffffff2e;box-shadow:0 12px 30px #00000080}:root[data-theme=dark] .hub-step-card__num{background:#589f4f2e;color:var(--color-accent-400)}.admin-level-page{padding-block:var(--space-12) var(--space-20)}.admin-level-filters{display:grid;grid-template-columns:1.4fr repeat(4,1fr) auto;gap:var(--space-3);margin-bottom:var(--space-5)}.admin-level-layout{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(0,1.2fr);gap:var(--space-6);align-items:start}.admin-level-list{display:grid;gap:var(--space-2)}.admin-level-item{display:grid;gap:var(--space-1);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-primary);text-align:left;cursor:pointer}.admin-level-item span,.admin-level-item small{color:var(--color-text-muted)}.admin-level-detail>h2{margin-top:0}.admin-level-files{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3);margin-block:var(--space-5)}.admin-level-files img{width:100%;aspect-ratio:1 / 1;border-radius:var(--radius-sm);object-fit:cover;background:var(--color-background)}.admin-level-topics{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-5)}.admin-level-topics p{margin:0;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.admin-question-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2);margin:0 0 var(--space-4);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.admin-question-row legend,.admin-question-row p{grid-column:1 / -1;margin:0}@media(max-width:900px){.admin-level-filters,.admin-level-layout{grid-template-columns:1fr}}.admin-weekly-page{padding-block:var(--space-12) var(--space-20)}.admin-weekly-header{max-width:720px;margin-bottom:var(--space-8)}.admin-weekly-header h1{margin-bottom:var(--space-3)}.admin-weekly-header p:last-child{color:var(--color-text-secondary)}.admin-weekly-status{min-height:24px;margin-bottom:var(--space-5);color:var(--color-success)}.admin-weekly-status[data-state=error]{color:var(--color-error)}.admin-weekly-layout{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(0,1.1fr);gap:var(--space-10);align-items:start}.admin-weekly-form-panel,.admin-weekly-list-panel{padding:var(--space-6);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.admin-weekly-form-panel h2,.admin-submissions h2{margin-top:0}.admin-weekly-form__row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}.admin-weekly-form__actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.admin-weekly-list{display:grid;gap:var(--space-3)}.admin-problem-item{display:grid;gap:var(--space-3);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md)}.admin-problem-item__top{display:flex;justify-content:space-between;gap:var(--space-3);align-items:start}.admin-problem-item__title{margin:0;font-family:var(--font-heading);font-size:17px}.admin-problem-item__meta{margin:0;color:var(--color-text-muted);font-size:13px}.admin-problem-item__actions{display:flex;flex-wrap:wrap;gap:var(--space-2)}.admin-problem-item__status{color:var(--color-accent-600);font-size:12px;font-weight:700;text-transform:uppercase}.admin-weekly-count{color:var(--color-text-muted);font-family:var(--font-mono)}.admin-submissions{margin-top:var(--space-10);padding-top:var(--space-8);border-top:1px solid var(--color-divider)}.admin-submission-item{display:grid;gap:var(--space-3);padding:var(--space-4) 0;border-bottom:1px solid var(--color-divider)}.admin-submission-item__answer{margin:0;color:var(--color-text-primary);font-weight:600}.admin-submission-item__solution{margin:0;color:var(--color-text-secondary);white-space:pre-wrap}.admin-submission-item__actions{display:flex;flex-wrap:wrap;gap:var(--space-2)}@media(max-width:767px){.admin-weekly-layout{grid-template-columns:1fr}.admin-weekly-form__row{grid-template-columns:1fr;gap:0}}.weekly-archive-page{padding-block:var(--space-12) var(--space-20)}.weekly-archive-header{max-width:720px;margin-bottom:var(--space-8)}.weekly-archive-header h1{margin-bottom:var(--space-3)}.weekly-archive-header p:last-child{color:var(--color-text-secondary)}.weekly-archive-filters{display:grid;grid-template-columns:minmax(120px,.65fr) minmax(180px,1fr) minmax(160px,.75fr) auto;gap:var(--space-4);align-items:end;margin-bottom:var(--space-8);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.weekly-archive-filters .form-field{margin-bottom:0}.weekly-archive-toolbar{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4)}.weekly-archive-toolbar p{margin:0;color:var(--color-text-muted);font-size:14px}.weekly-archive-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.weekly-archive-card{display:grid;gap:var(--space-4);min-height:220px;padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.weekly-archive-card:hover{border-color:var(--color-accent-300);box-shadow:var(--shadow-sm)}.weekly-archive-card__top{display:flex;justify-content:space-between;gap:var(--space-3)}.weekly-archive-card__topic{color:var(--color-accent-600);font-size:13px;font-weight:700}.weekly-archive-card__difficulty{color:var(--color-gold-600);letter-spacing:.08em}.weekly-archive-card__title{margin:0;font-family:var(--font-heading);font-size:20px}.weekly-archive-card__meta{align-self:end;margin:0;color:var(--color-text-muted);font-size:13px}.weekly-archive-empty{grid-column:1 / -1;padding:var(--space-8) 0;color:var(--color-text-muted)}@media(max-width:1023px){.weekly-archive-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:767px){.weekly-archive-filters,.weekly-archive-grid{grid-template-columns:1fr}.weekly-archive-toolbar{align-items:flex-start;flex-direction:column}}.auth-page{display:grid;min-height:70vh;place-items:center;padding-block:var(--space-12) var(--space-20)}.auth-panel{width:100%;padding:var(--space-8);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.auth-panel h1{margin-top:0}.auth-tabs{display:flex;gap:var(--space-5);margin-block:var(--space-8) var(--space-6);border-bottom:1px solid var(--color-divider)}.auth-tabs__tab{padding:0 0 var(--space-3);color:var(--color-text-muted);background:transparent;border:0;border-bottom:2px solid transparent;font:inherit;font-weight:600;cursor:pointer}.auth-tabs__tab--active{color:var(--color-accent-600);border-bottom-color:var(--color-accent-500)}.auth-status{min-height:24px;margin:var(--space-5) 0 0;color:var(--color-success)}.auth-status[data-state=error]{color:var(--color-error)}@media(max-width:767px){.auth-panel{padding:var(--space-6) var(--space-5)}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-48px;left:var(--space-4);z-index:200;padding:var(--space-3) var(--space-5);background-color:var(--color-ink-fixed);color:#fff;font-weight:600;font-size:14px;border-radius:var(--radius-md);transition:top var(--transition-fast)}.skip-link:focus{top:var(--space-4)}.text-center{text-align:center}.text-left{text-align:left}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-muted)}.text-accent{color:var(--color-accent-500)}.hidden{display:none!important}@media(max-width:767px){.hide-on-mobile{display:none!important}}@media(min-width:768px){.hide-on-desktop{display:none!important}}.measure{max-width:65ch}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.flex-wrap{flex-wrap:wrap}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.aspect-video{aspect-ratio:16 / 9}.aspect-square{aspect-ratio:1 / 1}.object-cover{object-fit:cover}.bg-surface{background-color:var(--color-surface)}.bg-sunken{background-color:var(--color-gray-50)}.rounded-md{border-radius:var(--radius-md)}.rounded-lg{border-radius:var(--radius-lg)}.border{border:1px solid var(--color-border)}.sr-only-focusable:not(:focus):not(:focus-within){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media print{.site-header,.site-footer,.toc,.toc-mobile,.article-footer__share,.back-to-top,.scroll-progress-bar,.skip-link{display:none!important}.article-body{max-width:100%}a[href]:after{content:" (" attr(href) ")";font-size:.8em;color:var(--color-text-muted)}}.mt-2{margin-top:var(--space-2)}.mt-3{margin-top:var(--space-3)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mt-10{margin-top:var(--space-10)}.mt-12{margin-top:var(--space-12)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.mb-10{margin-bottom:var(--space-10)}.text-right{text-align:right}.section-intro{color:var(--color-text-secondary);margin-top:calc(-1 * var(--space-6));margin-bottom:var(--space-10)}.section-intro--centered{text-align:center}.empty-state{text-align:center;padding:var(--space-16) 0;color:var(--color-text-muted)}.author-portrait{width:200px;height:250px;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--color-border)}.my-8{margin-block:var(--space-8)}.w-full{width:100%}.py-16{padding-block:var(--space-16)}