:root{--bg: #fbfcff;--card: #ffffff;--card-strong: #f3f6ff;--text: #0f172a;--muted: #475569;--muted2: #64748b;--border: rgba(15, 23, 42, .1);--shadow: 0 14px 35px rgba(15, 23, 42, .1);--brand: #6d28d9;--brand2: #06b6d4;--pink: #ec4899;--sun: #f59e0b;--lime: #22c55e;--warn: #f59e0b;--danger: #ef4444;--radius: 22px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Nunito,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";color:var(--text);background:radial-gradient(1000px 520px at 8% -8%,rgba(109,40,217,.16),transparent 62%),radial-gradient(900px 520px at 88% 2%,rgba(6,182,212,.16),transparent 62%),radial-gradient(900px 520px at 75% 88%,rgba(236,72,153,.12),transparent 62%),radial-gradient(700px 480px at 22% 86%,rgba(245,158,11,.1),transparent 62%),var(--bg)}a{color:inherit;text-decoration:none}.container{width:min(1100px,calc(100% - 40px));margin:0 auto}.surface{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.topbar{position:sticky;top:0;z-index:20;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:#ffffffc7;border-bottom:1px solid rgba(15,23,42,.1)}.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.2px}.brand-badge{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#6d28d9f2,#ec4899d9);display:grid;place-items:center;font-weight:900}.navlinks{display:flex;align-items:center;gap:10px}.navlinks-app{align-items:flex-end}.controls{display:flex;align-items:center;gap:10px}@media (max-width: 900px){.controls{display:none}}.control{display:grid;gap:6px}.control-row{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}.control-label{font-size:12px;color:var(--muted2);font-weight:900;letter-spacing:.4px;text-transform:uppercase;line-height:1;margin-bottom:-2px}.select{-moz-appearance:none;appearance:none;-webkit-appearance:none;border:1px solid var(--border);background:#ffffffeb;color:var(--text);border-radius:12px;padding:10px 34px 10px 12px;font-weight:800;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,rgba(15,23,42,.55) 50%),linear-gradient(135deg,rgba(15,23,42,.55) 50%,transparent 50%),linear-gradient(to right,transparent,transparent);background-position:calc(100% - 18px) calc(1em + 2px),calc(100% - 13px) calc(1em + 2px),0 0;background-size:5px 5px,5px 5px,100% 100%;background-repeat:no-repeat}.segmented{display:inline-flex;border:1px solid var(--border);background:#ffffffd9;border-radius:14px;padding:4px;gap:4px}.seg{border:1px solid transparent;background:transparent;color:var(--muted);font-weight:900;font-size:12px;padding:8px 10px;border-radius:12px;cursor:pointer}.seg:hover{background:#0f172a0a}.seg.active{background:#6d28d91f;border-color:#6d28d933;color:#0f172aeb}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:#ffffffe6;color:var(--text);font-weight:700;cursor:pointer;transition:all .12s ease}.btn-icon .icon{width:18px;height:18px;flex:0 0 auto}.btn:not(.btn-primary):not(.btn-ghost):hover{background:var(--card-strong);border-color:#0f172a29}.btn-primary{border-color:#6d28d940;background:linear-gradient(135deg,#6d28d9eb,#ec4899d1);color:#fffffffa}.btn-primary:hover{background:linear-gradient(135deg,#6d28d9,#ec4899eb);border-color:#6d28d959}.btn-ghost{border-color:transparent;background:transparent}.btn-ghost:hover{background:#0f172a0f;border-color:#0f172a14}.hero{padding:54px 0 30px}.hero-grid{display:grid;grid-template-columns:1fr;gap:22px;align-items:stretch}@media (max-width: 900px){.hero-grid{grid-template-columns:1fr}}.h1{margin:0;font-size:clamp(32px,4.4vw,52px);line-height:1.04;letter-spacing:-.6px}.h1 span{background:linear-gradient(90deg,#6d28d9,#ec4899,#06b6d4);-webkit-background-clip:text;background-clip:text;color:transparent}.subtitle{margin:14px 0 0;color:var(--muted);font-size:16px;line-height:1.55}.hero-subtitle{margin:14px 0 0;color:#0f172ac7;font-size:18px;line-height:1.55;max-width:56ch}.truncate-2{display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.pill{border:1px solid var(--border);background:#ffffffd9;color:var(--muted);border-radius:999px;padding:8px 12px;font-weight:700;font-size:13px}.card{padding:18px}.card-title{margin:0 0 8px;font-size:14px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.9px}.big-number{font-size:34px;font-weight:900;margin:0}.small{margin:6px 0 0;color:var(--muted2);font-size:13px;line-height:1.5}.section{padding:26px 0 44px}.section-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}@media (max-width: 900px){.section-grid{grid-template-columns:1fr}}.feature{padding:18px;border-radius:var(--radius);background:var(--card-strong);border:1px solid rgba(15,23,42,.1)}.feature.feature-candy{background:linear-gradient(180deg,#fff,#f3f6ff)}.feature h3{margin:0;font-size:16px}.feature p{margin:10px 0 0;color:var(--muted);line-height:1.55}.auth-wrap{padding:44px 0}.auth{width:min(520px,100%);margin:0 auto;padding:18px}.form{margin-top:10px;display:grid;gap:12px}.field label{display:block;font-size:16px;color:var(--muted);font-weight:800;margin-bottom:6px}.input{width:100%;padding:12px;border-radius:12px;border:1px solid rgba(15,23,42,.14);background:#ffffffeb;color:var(--text);font-size:16px;outline:none}.input:focus{border-color:#7c3aedb3}.helper{color:var(--muted2);font-size:15px;line-height:1.5}.app-shell{display:grid;grid-template-columns:260px 1fr;gap:16px;padding:18px 0 30px}@media (max-width: 900px){.app-shell{grid-template-columns:1fr}}.mobile-menu-btn,.mobile-sidebar-overlay{display:none!important}@media (max-width: 900px){.mobile-menu-btn{display:flex!important}.mobile-sidebar-overlay{display:block!important}}.sidebar{padding:14px;position:sticky;top:74px;align-self:start}@media (max-width: 900px){.sidebar{position:fixed;top:0;left:-260px;width:260px;height:100vh;z-index:40;transition:left .3s ease;border-radius:0;box-shadow:2px 0 10px #0000001a;padding-top:80px}.sidebar.mobile-open{left:0}.main{margin-left:0}}.sidebar h2{margin:0 0 10px;font-size:14px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted)}.side-links{display:grid;gap:8px}.side-section{margin-top:14px}.side-section-title{margin:0 0 8px;font-size:12px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted2);font-weight:900}.side-link-small{padding:9px 12px;font-size:14px}.side-link{padding:10px 12px;border-radius:12px;border:1px solid transparent;background:#0f172a0a;color:var(--text);font-weight:750}.side-link-cat{background:var(--cat-bg, rgba(15, 23, 42, .04));border-color:transparent}.side-link-cat:hover{border-color:var(--cat-border, rgba(15, 23, 42, .14))}.side-link-cat.active{border:3px solid var(--cat-border, rgba(15, 23, 42, .14));background:var(--cat-bg, rgba(15, 23, 42, .04));padding:8px 10px}.side-link.active{border:3px solid rgba(109,40,217,.32);background:#6d28d91a;padding:8px 10px}.main{padding:14px;min-width:0}.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:14px}.search{flex:1;min-width:220px}.tags{display:flex;flex-wrap:wrap;gap:8px}.tag{padding:8px 10px;border-radius:999px;border:1px solid rgba(15,23,42,.12);background:#ffffffeb;font-weight:800;font-size:12px;color:var(--muted);cursor:pointer}.tag.active{border-color:#16a34a59;background:#16a34a1a;color:#0f172aeb}.grid{display:grid;grid-template-columns:1fr;gap:14px}@media (max-width: 900px){.grid{grid-template-columns:1fr}}.news-card{padding:14px;border-radius:var(--radius);border:1px solid rgba(15,23,42,.1);background:#fffffffa}.news-card:hover{border-color:#6d28d938;box-shadow:0 18px 45px #0f172a1f}.home-hero{padding:44px 0 20px}.home-hero-inner{display:grid;grid-template-columns:1fr;gap:16px;align-items:stretch}@media (max-width: 900px){.home-hero-inner{grid-template-columns:1fr}}.home-card{padding:18px}.home-merge{display:grid;grid-template-columns:1fr;position:relative;overflow:hidden;width:100%}.home-merge>.home-card{padding:20px;position:relative;z-index:1}@media (max-width: 900px){.home-merge{grid-template-columns:1fr}}.home-cta-row{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.home-art{position:relative;overflow:hidden}.blob{position:absolute;inset:auto;border-radius:999px;z-index:0;filter:blur(0px)}.blob.b1{width:320px;height:320px;left:-90px;top:-60px;background:#6d28d91f}.blob.b2{width:360px;height:360px;right:-120px;top:-80px;background:#06b6d424}.blob.b3{width:360px;height:360px;left:20%;bottom:-170px;background:#ec48991a}.mascot{position:relative;height:100%;min-height:220px;display:grid;place-items:center}.mascot-bubble{width:min(340px,100%);border-radius:28px;border:1px solid rgba(15,23,42,.1);background:#ffffffeb;padding:16px;box-shadow:0 18px 40px #0f172a1a}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}@media (max-width: 900px){.category-grid{grid-template-columns:1fr}}.category-tile{padding:16px;border-radius:20px;border:1px solid rgba(15,23,42,.1);background:#fffffffa;box-shadow:0 10px 24px #0f172a14;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}.category-tile:hover{transform:translateY(-2px);border-color:#6d28d933;box-shadow:0 16px 34px #0f172a1a}.category-title{margin:0;font-weight:950;font-size:16px}.category-desc{margin:8px 0 0;color:var(--muted);line-height:1.5}.category-chip{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:999px;font-weight:900;font-size:12px;color:#0f172aeb;background:#6d28d91a;border:1px solid rgba(109,40,217,.18)}.chip-sci{background:#06b6d424;border-color:#06b6d438}.chip-ani{background:#22c55e1f;border-color:#22c55e33}.chip-spa{background:#6d28d91f;border-color:#6d28d92e}.chip-spo{background:#f59e0b24;border-color:#f59e0b38}.chip-wor{background:#ec48991f;border-color:#ec489933}.chip-tec{background:#3b82f61f;border-color:#3b82f633}.news-title{margin:6px 0;font-size:20px;line-height:1.15;letter-spacing:-.2px}.kw{color:#06b6d4;font-weight:950}.meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted2);font-weight:750;font-size:12px}.meta-bottom{margin-top:10px;padding-top:10px;border-top:1px solid rgba(15,23,42,.08);justify-content:space-between}.badge{padding:6px 10px;border-radius:999px;border:1px solid rgba(15,23,42,.12);background:#0f172a0a;color:var(--muted);font-weight:900;font-size:12px}.badge-new{border-color:#f59e0b80;background:#f59e0b29;color:#0f172aeb}.article{padding:16px;display:flex;flex-direction:column;min-height:70vh}.article h1{margin:6px 0 8px;font-size:var(--article-title-font-size, 28px)}.article p{color:var(--muted);line-height:1.7;font-size:var(--article-body-font-size, 17px)}.article-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:18px}.footer{padding:26px 0;color:var(--muted2)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{position:relative;max-width:480px;width:100%;max-height:90vh;overflow-y:auto}.modal-close{position:absolute;top:16px;right:16px;background:#ffffff1a;border:none;color:var(--text);font-size:32px;line-height:1;width:40px;height:40px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.modal-close:hover{background:#fff3}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:24px;padding:20px 0}.pagination-btn{min-width:48px;height:48px;padding:0 16px;border-radius:12px;border:2px solid rgba(15,23,42,.14);background:#ffffffeb;color:var(--text);font-size:18px;font-weight:800;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}.pagination-btn:hover:not(:disabled){border-color:#fb923c80;background:#fb923c1a}.pagination-btn.active{background:#fb923c;border-color:#fb923c;color:#fff}.pagination-btn:disabled{opacity:.4;cursor:not-allowed}.pagination-ellipsis{padding:0 8px;color:var(--muted);font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center}.landing-page{min-height:100vh}.home-navbar{position:sticky;top:0;z-index:100;background:#fffffff2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(15,23,42,.08);box-shadow:0 2px 20px #0f172a0f}.home-navbar-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.home-brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text)}.home-brand-icon{font-size:24px}.home-brand-text{font-size:22px;font-weight:800;letter-spacing:-.3px}.home-brand-star{font-size:18px}.home-navlinks{display:flex;align-items:center;gap:8px}.home-navlink{padding:10px 16px;border-radius:12px;font-weight:700;font-size:15px;color:var(--muted);transition:all .12s ease}.home-navlink:hover{background:#0f172a0a;color:var(--text)}.btn-teachers{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:12px 20px;border-radius:12px;box-shadow:0 4px 14px #fbbf244d;transition:all .15s ease}.btn-teachers:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);border-color:#f59e0b80;transform:translateY(-1px);box-shadow:0 6px 20px #fbbf2466}@media (max-width: 768px){.home-navlinks{display:none}.home-navbar-inner{padding:12px 0}}.hero-section{padding:70px 0 60px;background:linear-gradient(180deg,#fff,#fffbea)}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}.hero-content{max-width:600px}.hero-headline{font-size:clamp(36px,5vw,56px);font-weight:900;line-height:1.1;letter-spacing:-1px;margin:0 0 20px;color:var(--text)}.hero-subheadline{font-size:18px;line-height:1.7;color:var(--muted);margin:0 0 28px;max-width:520px}.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}.btn-hero-primary{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:16px 28px;font-size:17px;border-radius:14px;box-shadow:0 4px 20px #fbbf2459;transition:all .15s ease}.btn-hero-primary:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);border-color:#f59e0b80;transform:translateY(-2px);box-shadow:0 8px 28px #fbbf2473}.btn-hero-secondary{background:transparent;border:2px solid #3B82F6;color:#3b82f6;font-weight:800;padding:16px 28px;font-size:17px;border-radius:14px;transition:all .15s ease}.btn-hero-secondary:hover{background:#3b82f614;transform:translateY(-2px)}.hero-illustration{display:flex;justify-content:center;align-items:center}.hero-art-box{width:280px;height:280px;background:linear-gradient(135deg,#e0f2fe,#bae6fd);border-radius:32px;display:flex;align-items:center;justify-content:center;box-shadow:0 20px 50px #3b82f626}.hero-art-emoji{font-size:100px}@media (max-width: 900px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero-section{padding:50px 0 40px}.hero-illustration{order:-1}.hero-art-box{width:200px;height:200px}.hero-art-emoji{font-size:70px}}.trust-bar{padding:24px 0;background:#f8fafc;border-top:1px solid rgba(15,23,42,.06);border-bottom:1px solid rgba(15,23,42,.06)}.trust-bar .container{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}.trust-bar-text{font-size:15px;font-weight:600;color:var(--muted);margin:0}.trust-items{display:flex;gap:32px;flex-wrap:wrap;justify-content:center}.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--text)}.trust-icon{font-size:18px}@media (max-width: 768px){.trust-bar .container{flex-direction:column;gap:20px}.trust-items{gap:16px}}.how-it-works{padding:80px 0;background:#f0f7ff}.section-header{text-align:center;margin-bottom:50px}.section-title{font-size:clamp(28px,4vw,38px);font-weight:900;margin:0 0 12px;color:var(--text)}.section-subtitle{font-size:17px;color:var(--muted);margin:0}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.step-card{background:#fff;border-radius:24px;padding:32px 28px;box-shadow:0 8px 30px #0f172a14;border:1px solid rgba(15,23,42,.06);transition:all .2s ease}.step-card:hover{transform:translateY(-4px);box-shadow:0 16px 45px #0f172a1f}.step-number{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:#3b82f6;margin-bottom:16px}.step-icon{font-size:44px;margin-bottom:16px;display:block}.step-title{font-size:20px;font-weight:800;margin:0 0 12px;color:var(--text)}.step-description{font-size:15px;line-height:1.6;color:var(--muted);margin:0}@media (max-width: 900px){.steps-grid{grid-template-columns:1fr}.how-it-works{padding:60px 0}}.sample-articles{padding:80px 0;background:#fff}.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}.article-card{background:#fff;border-radius:20px;padding:28px;border:1px solid rgba(15,23,42,.08);box-shadow:0 4px 20px #0f172a0d;transition:all .2s ease}.article-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px #0f172a1a;border-color:#3b82f633}.article-emoji{font-size:36px;margin-bottom:16px;display:block}.article-card .category-chip{margin-bottom:12px;display:inline-flex}.article-headline{font-size:18px;font-weight:800;line-height:1.3;margin:0 0 12px;color:var(--text)}.article-excerpt{font-size:14px;line-height:1.6;color:var(--muted);margin:0 0 16px;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-link{font-size:14px;font-weight:700;color:#3b82f6;text-decoration:none;transition:color .12s ease}.article-link:hover{color:#2563eb}.articles-cta{text-align:center}.btn-outline{background:transparent;border:2px solid var(--border);color:var(--muted);font-weight:700;padding:14px 28px;border-radius:12px;transition:all .15s ease}.btn-outline:hover{border-color:#3b82f6;color:#3b82f6;background:#3b82f60a}@media (max-width: 900px){.articles-grid{grid-template-columns:1fr}.sample-articles{padding:60px 0}}.testimonials{padding:80px 0;background:#fffbea}.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.testimonial-card{background:#fff;border-radius:20px;padding:28px;box-shadow:0 4px 20px #0f172a0d;border:1px solid rgba(15,23,42,.06);transition:all .2s ease}.testimonial-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px #0f172a1a}.testimonial-stars{color:#fbbf24;font-size:18px;margin-bottom:16px;letter-spacing:2px}.testimonial-quote{font-size:15px;line-height:1.7;color:var(--text);margin:0 0 20px;font-style:italic}.testimonial-author{display:flex;flex-direction:column;gap:4px}.testimonial-author strong{font-size:15px;font-weight:800;color:var(--text)}.testimonial-author span{font-size:13px;color:var(--muted2)}@media (max-width: 900px){.testimonials-grid{grid-template-columns:1fr}.testimonials{padding:60px 0}}.final-cta{padding:100px 0;background:linear-gradient(135deg,#3b82f6,#60a5fa,#93c5fd)}.final-cta-content{text-align:center;max-width:700px;margin:0 auto}.final-cta-headline{font-size:clamp(28px,4vw,40px);font-weight:900;color:#fff;margin:0 0 16px;line-height:1.2}.final-cta-subtext{font-size:18px;color:#ffffffe6;margin:0 0 32px}.btn-final-cta{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:18px 36px;font-size:18px;border-radius:16px;box-shadow:0 6px 25px #0003;transition:all .15s ease;display:inline-block;margin-bottom:24px}.btn-final-cta:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);transform:translateY(-2px) scale(1.02);box-shadow:0 10px 35px #00000040}.final-cta-badges{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;font-size:14px;color:#ffffffd9;font-weight:600}@media (max-width: 768px){.final-cta{padding:70px 20px}.final-cta-badges{gap:16px}}.home-footer{padding:60px 0 40px;background:#fff;border-top:1px solid rgba(15,23,42,.08)}.footer-top{text-align:center;margin-bottom:40px}.footer-brand{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:8px}.footer-brand-icon{font-size:24px}.footer-brand-text{font-size:24px;font-weight:800;color:var(--text)}.footer-tagline{font-size:15px;color:var(--muted);margin:0}.footer-links{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;margin-bottom:40px;padding-bottom:40px;border-bottom:1px solid rgba(15,23,42,.08)}.footer-links a{font-size:14px;font-weight:600;color:var(--muted);text-decoration:none;transition:color .12s ease}.footer-links a:hover{color:#3b82f6}.footer-bottom{text-align:center}.footer-bottom p{font-size:14px;color:var(--muted2);margin:0}@media (max-width: 768px){.footer-links{gap:20px}.home-footer{padding:40px 0 30px}}.contact-page{min-height:100vh;background:#fff}.contact-hero{padding:60px 0 50px;background:linear-gradient(180deg,#fff,#fffbea);text-align:center}.contact-hero-content{max-width:600px;margin:0 auto}.contact-hero-label{display:inline-block;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;color:#3b82f6;margin-bottom:16px;background:#3b82f61a;padding:8px 16px;border-radius:999px}.contact-hero-title{font-size:clamp(32px,5vw,48px);font-weight:900;line-height:1.15;margin:0 0 16px;color:var(--text)}.contact-hero-subtitle{font-size:17px;line-height:1.6;color:var(--muted);margin:0}.contact-main{padding:50px 0 70px;background:#fff}.contact-two-column{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}@media (max-width: 900px){.contact-two-column{grid-template-columns:1fr}.contact-info-column{order:2}.contact-form-column{order:1}}.contact-form-card{background:#fff;border-radius:24px;padding:36px;box-shadow:0 8px 40px #0f172a14;border:1px solid rgba(15,23,42,.06)}.contact-form-title{font-size:22px;font-weight:800;margin:0 0 28px;color:var(--text)}.contact-form{display:grid;gap:20px}.form-field{display:grid;gap:8px}.form-field label{font-size:14px;font-weight:700;color:var(--text)}.form-field .input,.form-field .select{width:100%;padding:14px 16px;border-radius:12px;border:2px solid rgba(15,23,42,.1);background:#fff;font-size:15px;color:var(--text);transition:all .15s ease;font-family:inherit}.form-field .input:focus,.form-field .select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 4px #3b82f61a}.form-field .input.error,.form-field .select.error{border-color:#ef4444}.form-field .input.error:focus,.form-field .select.error:focus{box-shadow:0 0 0 4px #ef44441a}.form-field .textarea{min-height:120px;resize:vertical;line-height:1.5}.form-field .select{-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;cursor:pointer}.form-field .select option{font-family:inherit}.field-error{font-size:13px;color:#ef4444;font-weight:600}.btn-contact-submit{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:16px 28px;font-size:16px;border-radius:14px;box-shadow:0 4px 20px #fbbf2459;transition:all .15s ease;width:100%;margin-top:8px;cursor:pointer;border:none}.btn-contact-submit:hover:not(:disabled){background:linear-gradient(135deg,#fbbf24,#f59e0b);transform:translateY(-2px);box-shadow:0 8px 28px #fbbf2473}.btn-contact-submit:disabled{opacity:.7;cursor:not-allowed}.contact-success-message{padding:16px 20px;border-radius:12px;background:#22c55e1a;color:#16a34a;font-weight:600;margin-bottom:24px;border:1px solid rgba(34,197,94,.2)}.contact-error-message{padding:16px 20px;border-radius:12px;background:#ef44441a;color:#dc2626;font-weight:600;margin-bottom:24px;border:1px solid rgba(239,68,68,.2)}.contact-info-section{display:grid;gap:20px}.contact-info-card{background:#f0f7ff;border-radius:20px;padding:28px;box-shadow:0 4px 20px #0f172a0d;border:1px solid rgba(59,130,246,.1);transition:all .2s ease}.contact-info-card:hover{transform:translateY(-3px);box-shadow:0 8px 30px #0f172a1a}.contact-info-icon{font-size:28px;margin-bottom:12px;display:block}.contact-info-title{font-size:16px;font-weight:800;color:var(--text);margin:0 0 8px}.contact-info-value{font-size:15px;font-weight:700;color:#3b82f6;margin:0 0 6px}.contact-info-description{font-size:14px;color:var(--muted);margin:0;line-height:1.5}.faq-section{padding:70px 0;background:#f9fafb}.faq-list{max-width:800px;margin:0 auto}.faq-item{background:#fff;border-radius:16px;padding:20px 24px;margin-bottom:12px;box-shadow:0 2px 12px #0f172a0a;border:1px solid rgba(15,23,42,.06);cursor:pointer;transition:all .2s ease}.faq-item:hover{box-shadow:0 4px 20px #0f172a14}.faq-item.open{box-shadow:0 4px 20px #0f172a1a}.faq-question{display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:700;color:var(--text)}.faq-toggle{font-size:20px;font-weight:400;color:#3b82f6;margin-left:16px;flex-shrink:0}.faq-answer{font-size:15px;line-height:1.7;color:var(--muted);margin-top:12px;padding-top:12px;border-top:1px solid rgba(15,23,42,.08)}.contact-cta-banner{padding:80px 0;background:linear-gradient(135deg,#3b82f6,#60a5fa,#93c5fd)}.contact-cta-content{text-align:center;max-width:600px;margin:0 auto}.contact-cta-title{font-size:clamp(26px,4vw,34px);font-weight:900;color:#fff;margin:0 0 12px;line-height:1.2}.contact-cta-subtitle{font-size:17px;color:#ffffffe6;margin:0 0 28px}.btn-contact-cta{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:16px 32px;font-size:17px;border-radius:14px;box-shadow:0 6px 25px #0003;transition:all .15s ease;display:inline-block;text-decoration:none}.btn-contact-cta:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);transform:translateY(-2px) scale(1.02);box-shadow:0 10px 35px #00000040}@media (max-width: 768px){.contact-hero{padding:40px 20px 35px}.contact-main{padding:30px 0 50px}.contact-form-card{padding:24px}.contact-info-card{padding:22px}.faq-section{padding:50px 20px}.faq-question{font-size:15px}.contact-cta-banner{padding:60px 20px}}.btn-for-teachers{background:linear-gradient(135deg,#fcd34d,#fbbf24);border-color:#fbbf2466;color:#1f2937;font-weight:800;padding:10px 16px;border-radius:12px;box-shadow:0 4px 14px #fbbf244d;transition:all .15s ease}.btn-for-teachers:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);border-color:#f59e0b80;transform:translateY(-1px);box-shadow:0 6px 20px #fbbf2466}.reading-progress-container{position:fixed;top:0;left:0;right:0;height:4px;background:#6d28d91a;z-index:1001}.reading-progress-bar{height:100%;background:linear-gradient(90deg,#6d28d9,#a78bfa);transition:width .1s ease-out}.article-hero{margin:-16px -16px 20px;border-radius:22px 22px 0 0;overflow:hidden}.article-hero-image{width:100%;max-height:350px;object-fit:cover;display:block}.article-hero-placeholder{margin:-16px -16px 20px;border-radius:22px 22px 0 0;height:200px;display:flex;align-items:center;justify-content:center}.article-hero-emoji{font-size:80px}@media (max-width: 768px){.article-hero-image{max-height:200px}.article-hero-placeholder{height:150px}.article-hero-emoji{font-size:60px}}.reading-time-badge-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px;align-items:center}.reading-badge{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:#0f172a0a;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted)}.reading-badge-icon{font-size:14px}.reading-badge-link{background:#6d28d91a;color:#6d28d9;text-decoration:none;transition:all .12s ease}.reading-badge-link:hover{background:#6d28d926;transform:translateY(-1px)}.keyword-hint{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:12px;margin-bottom:20px;border:1px solid rgba(251,191,36,.3);animation:slideDown .3s ease}.keyword-hint.dismissed{animation:slideUp .3s ease forwards}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}.keyword-hint-text{font-size:14px;color:#92400e;font-weight:600}.keyword-hint-close{background:none;border:none;font-size:20px;color:#92400e;cursor:pointer;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .12s ease}.keyword-hint-close:hover{background:#92400e1a}.article-enhanced{padding:0}.article-headline-enhanced{margin:0 16px 20px;font-size:var(--article-title-font-size, 28px);line-height:1.3}.article-body{padding:0 16px}.discussion-questions-card{background:#f0f7ff;border-radius:16px;margin:24px 16px;overflow:hidden;border:1px solid rgba(59,130,246,.15)}.discussion-questions-header{display:flex;align-items:center;gap:12px;padding:16px 20px;cursor:pointer;transition:background .15s ease;position:relative}.discussion-questions-header:hover{background:#3b82f60d}.discussion-questions-title{font-size:15px;font-weight:800;color:var(--text);flex:1}.discussion-questions-toggle{font-size:20px;color:#3b82f6;font-weight:400}.discussion-questions-label{font-size:12px;font-weight:700;color:#3b82f6;background:#3b82f61a;padding:4px 10px;border-radius:999px}.discussion-questions-content{padding:0 20px 20px}.discussion-question-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid rgba(59,130,246,.1)}.discussion-question-item:last-child{border-bottom:none}.discussion-question-number{font-size:14px;font-weight:800;color:#3b82f6;flex-shrink:0}.discussion-question-text{font-size:15px;line-height:1.5;color:var(--text)}.article-actions-enhanced{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;padding:16px;background:#0f172a05;border-radius:16px;align-items:center}.article-actions-group{display:flex;gap:6px}.btn-back{font-weight:700}.btn-liked{background:#ec48991a;border-color:#ec48994d;color:#ec4899}.btn-print,.btn-share{background:#fff;border:2px solid rgba(15,23,42,.15);color:var(--text);font-weight:600}.btn-print:hover,.btn-share:hover{border-color:#0f172a40;background:#0f172a05}.share-wrapper{position:relative}.share-tooltip{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);background:#1f2937;color:#fff;padding:6px 12px;border-radius:8px;font-size:12px;font-weight:600;white-space:nowrap;animation:fadeIn .2s ease}.share-tooltip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:6px solid transparent;border-top-color:#1f2937}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(5px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.btn-mark-read{background:linear-gradient(135deg,#6d28d9eb,#ec4899d1);border-color:#6d28d940;color:#fffffffa;margin-left:auto}.btn-mark-read:hover:not(:disabled){background:linear-gradient(135deg,#6d28d9,#ec4899eb)}@media (max-width: 768px){.article-actions-enhanced{position:fixed;bottom:0;left:0;right:0;margin:0;border-radius:0;background:#fff;box-shadow:0 -4px 20px #0f172a1a;z-index:100;padding:12px 16px;justify-content:center}.btn-mark-read{margin-left:0}.article-enhanced{padding-bottom:80px}}.related-articles{padding:40px 0 60px;background:#f9fafb;margin-top:20px}.related-articles-title{font-size:22px;font-weight:800;margin:0 0 24px;color:var(--text);text-align:center}.related-articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.related-article-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 16px #0f172a0f;border:1px solid rgba(15,23,42,.06);text-decoration:none;transition:all .2s ease;display:block}.related-article-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 12px 30px #0f172a1f}.related-article-image{height:120px;display:flex;align-items:center;justify-content:center}.related-article-emoji{font-size:48px}.related-article-content{padding:16px}.related-article-category{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.related-article-headline{font-size:16px;font-weight:800;line-height:1.3;margin:8px 0;color:var(--text);display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.related-article-link{font-size:14px;font-weight:700;color:#3b82f6}@media (max-width: 900px){.related-articles-grid{grid-template-columns:1fr}}@media (max-width: 768px){.related-articles-grid{display:flex;overflow-x:auto;gap:16px;padding-bottom:16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}.related-article-card{flex:0 0 280px;scroll-snap-align:start}}.auth-page{min-height:100vh;background:linear-gradient(180deg,#fffbea,#fff,#f0f7ff)}.auth-main{padding:60px 0}.auth-card{max-width:440px;margin:0 auto;background:#fff;border-radius:24px;padding:40px;box-shadow:0 8px 40px #0f172a14;border:1px solid rgba(15,23,42,.06)}.auth-header{text-align:center;margin-bottom:28px}.auth-label{display:inline-block;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;color:#3b82f6;margin-bottom:12px;background:#3b82f61a;padding:8px 16px;border-radius:999px}.auth-title{font-size:28px;font-weight:900;line-height:1.2;margin:0 0 8px;color:var(--text)}.auth-subtitle{font-size:15px;color:var(--muted);margin:0;line-height:1.5}.auth-tabs{display:flex;gap:8px;margin-bottom:24px}.auth-tab{flex:1;padding:14px 20px;border:2px solid rgba(15,23,42,.08);background:#fff;border-radius:14px;font-size:15px;font-weight:700;color:var(--muted);cursor:pointer;transition:all .15s ease}.auth-tab:hover{border-color:#3b82f64d;color:var(--text)}.auth-tab.active{background:linear-gradient(135deg,#3b82f6,#60a5fa);border-color:transparent;color:#fff;box-shadow:0 4px 16px #3b82f64d}.auth-form{display:grid;gap:16px}.auth-form .form-field{display:grid;gap:6px}.auth-form .form-field label{font-size:14px;font-weight:700;color:var(--text)}.auth-form .form-field .input{width:100%;padding:14px 16px;border-radius:12px;border:2px solid rgba(15,23,42,.1);background:#fff;font-size:15px;color:var(--text);transition:all .15s ease;font-family:inherit}.auth-form .form-field .input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 4px #3b82f61a}.btn-auth-primary{background:linear-gradient(135deg,#fcd34d,#fbbf24);border:none;color:#1f2937;font-weight:800;padding:16px 28px;font-size:16px;border-radius:14px;box-shadow:0 4px 20px #fbbf2459;transition:all .15s ease;cursor:pointer;width:100%;margin-top:8px}.btn-auth-primary:hover:not(:disabled){background:linear-gradient(135deg,#fbbf24,#f59e0b);transform:translateY(-2px);box-shadow:0 8px 28px #fbbf2473}.btn-auth-primary:disabled{opacity:.7;cursor:not-allowed}.btn-google{background:#fff;border:2px solid rgba(15,23,42,.1);color:var(--text);font-weight:600;padding:14px 24px;font-size:15px;border-radius:14px;transition:all .15s ease;display:flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;width:100%}.btn-google:hover{border-color:#0f172a33;background:#0f172a05}.auth-divider{display:flex;align-items:center;gap:12px;margin:24px 0}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:#0f172a1a}.auth-divider span{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase}.auth-error{font-size:14px;color:#dc2626;font-weight:600;text-align:center;padding:12px;background:#dc26260f;border-radius:10px}.auth-dev-code{font-size:14px;color:var(--muted);text-align:center;padding:12px;background:linear-gradient(135deg,#fcd34d26,#fbbf241a);border-radius:10px;border:1px solid rgba(251,191,36,.2)}.auth-change-email{background:none;border:none;font-size:14px;font-weight:600;color:#3b82f6;cursor:pointer;text-decoration:underline;margin-top:12px;text-align:center}.auth-change-email:hover{color:#2563eb}.auth-checkboxes{display:flex;flex-direction:column;gap:12px;margin:8px 0 4px}.auth-checkbox-label{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-size:14px;color:var(--text);line-height:1.4}.auth-checkbox-label input{margin-top:2px;width:18px;height:18px;accent-color:#3B82F6;flex-shrink:0}.auth-checkbox-label a{color:#3b82f6;text-decoration:underline;font-weight:600}.auth-checkbox-label a:hover{color:#2563eb}.auth-links{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid rgba(15,23,42,.08)}.auth-links p{margin:8px 0;font-size:15px;color:var(--muted)}.auth-link{color:#3b82f6;font-weight:700;text-decoration:none}.auth-link:hover{color:#2563eb;text-decoration:underline}.auth-hint{font-size:14px;color:var(--muted);font-style:italic}@media (max-width: 480px){.auth-main{padding:30px 16px}.auth-card{padding:28px 20px}.auth-title{font-size:24px}.auth-tabs{flex-direction:column}}.floating-cards-wrapper{position:relative;width:100%;max-width:360px;min-height:520px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:60px}.floating-cards-stack-v3{position:relative;width:320px;height:420px}.floating-card-v3{position:absolute;width:300px;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 16px 48px #1a15602e;border:1px solid rgba(26,21,96,.08);text-decoration:none;transition:all .3s ease;cursor:pointer}.floating-card-v3:hover{box-shadow:0 24px 64px #1a156047;z-index:10}.floating-card-front-v3{z-index:3;top:80px;left:10px;transform:rotate(-1deg)}.floating-card-front-v3:hover{transform:rotate(-1deg) scale(1.03)}.floating-v3{animation:float-v3 4s ease-in-out infinite}@keyframes float-v3{0%,to{transform:rotate(-1deg) translateY(0)}50%{transform:rotate(-1deg) translateY(-10px)}}.floating-card-middle-v3{z-index:2;top:20px;left:30px;transform:rotate(-4deg);height:110px;overflow:hidden}.floating-card-middle-v3 .floating-card-body-v3{display:none}.floating-card-back-v3{z-index:1;top:-10px;left:60px;transform:rotate(6deg);height:100px;overflow:hidden}.floating-card-back-v3 .floating-card-body-v3{display:none}.floating-card-header-v3{height:90px;display:flex;align-items:center;justify-content:center;border-radius:20px 20px 0 0}.floating-card-emoji-v3{font-size:52px;line-height:1;display:block}.floating-card-body-v3{padding:16px 18px}.floating-card-meta-v3{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;flex-wrap:wrap;gap:6px}.floating-card-readtime-v3{font-size:12px;color:#666;font-weight:500}.floating-card-badge-v3{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:4px 10px;border-radius:999px;background:#534ab71a;color:#534ab7}.floating-card-badge-v3.chip-sci{background:#00bcd426;color:#0097a7}.floating-card-badge-v3.chip-spo{background:#ff980026;color:#e65100}.floating-card-badge-v3.chip-ani{background:#43a04726;color:#1b5e20}.floating-card-badge-v3.chip-spa{background:#7b1fa226;color:#4a148c}.floating-card-badge-v3.chip-fin{background:#43a04726;color:#1b5e20}.floating-card-badge-v3.chip-tec{background:#534ab726;color:#534ab7}.floating-card-badge-v3.chip-hea{background:#e5393526;color:#b71c1c}.floating-card-badge-v3.chip-wor{background:#1e88e526;color:#0d47a1}.floating-card-badge-v3.chip-fin{background:#2e7d3226;color:#1b5e20}.floating-card-badge-v3.chip-cul{background:#8e24aa26;color:#4a148c}.floating-card-badge-v3.chip-civ{background:#5e35b126;color:#311b92}.floating-card-badge-v3.chip-exp{background:#fdd83533;color:#f57f17}.floating-card-badge-v3.chip-goo{background:#fb8c0026;color:#e65100}.floating-card-badge-v3.chip-kid{background:#00acc126;color:#006064}.floating-card-badge-v3.chip-spa{background:#5e35b126;color:#311b92}.floating-card-title-v3{font-size:15px;font-weight:800;line-height:1.35;margin:0 0 8px;color:#1a1a2e;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.hero-card-keyword{color:#00bcd4;font-weight:900}.floating-card-excerpt-v3{font-size:12px;line-height:1.4;color:#666;margin:0 0 12px;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.floating-card-readmore-v3{font-size:13px;font-weight:700;color:#534ab7;display:inline-flex;align-items:center;gap:4px}.floating-card-loading-v3{padding:60px 20px;text-align:center;font-size:14px;color:#666}.floating-cards-badge-v3{position:absolute;bottom:20px;right:20px;background:#534ab7;color:#fff;padding:10px 20px;border-radius:14px;display:flex;flex-direction:column;align-items:center;gap:2px;z-index:10;animation:pulse-v3 2s ease-in-out infinite}@keyframes pulse-v3{0%,to{box-shadow:0 0 #534ab766}50%{box-shadow:0 0 0 10px #534ab700}}.floating-cards-count-v3{font-size:24px;font-weight:900;line-height:1}.floating-cards-label-v3{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:2px;opacity:.9}@media (max-width: 768px){.floating-cards-wrapper{height:auto;min-height:auto;padding:0;margin-top:30px}.floating-cards-stack-v3{display:none}.floating-cards-badge-v3{position:relative;bottom:auto;right:auto;margin:0 auto;flex-direction:row;gap:8px;padding:12px 24px}.floating-cards-count-v3{font-size:20px}}.single-article-preview{background:#fff;border-radius:20px;box-shadow:0 8px 40px #534ab726;border:1px solid #f0f0f0;max-width:380px;margin:0 auto;overflow:hidden;text-decoration:none;display:block;transition:all .3s ease;cursor:pointer}.single-article-preview:hover{transform:scale(1.02);box-shadow:0 12px 50px #534ab740}.article-preview-header{padding:24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.article-preview-header-left{flex:1;min-width:0}.article-preview-label{font-size:11px;color:#fff9;letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;font-weight:600}.article-preview-title{font-size:18px;font-weight:800;color:#fff;line-height:1.3;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.article-preview-emoji{font-size:52px;line-height:1;flex-shrink:0}.article-preview-body{padding:20px}.article-preview-badges{margin-bottom:12px;display:flex;gap:6px;flex-wrap:wrap}.article-preview-badge{background:#f3f0ff;color:#534ab7;font-size:10px;font-weight:700;padding:4px 10px;border-radius:20px;text-transform:uppercase;letter-spacing:.5px}.article-preview-excerpt{font-size:13px;color:#666;line-height:1.6;margin:0 0 16px}.article-preview-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}.article-preview-readtime{font-size:11px;color:#aaa;font-weight:500}.article-preview-cta{background:#534ab7;color:#fff;font-size:12px;font-weight:700;padding:8px 18px;border-radius:20px;transition:background .2s ease}.single-article-preview:hover .article-preview-cta{background:#6d5bc7}.article-preview-footer{background:#fff8ed;padding:10px 20px;border-top:1px solid #f5f0e0;display:flex;align-items:center;gap:8px}.pulse-dot{width:8px;height:8px;background:#ef9f27;border-radius:50%;animation:pulse-dot 2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.article-preview-footer-text{font-size:11px;color:#ba7517;font-weight:600}.shimmer-bg,.shimmer-line{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite;border-radius:8px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (max-width: 1024px){.single-article-preview{max-width:340px}}@media (max-width: 768px){.single-article-preview{display:none}}.language-strip{background:#fff;padding:20px 0;border-top:1px solid #f0f0f0;border-bottom:1px solid #f0f0f0}.language-strip-content{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px}.language-strip-label{font-size:13px;font-weight:700;color:#534ab7;margin-right:16px;white-space:nowrap}.language-pills{display:flex;align-items:center;flex-wrap:wrap;gap:8px;justify-content:center}.language-pill{background:#f3f0ff;border:1px solid #E0DDFB;border-radius:20px;padding:5px 12px;display:inline-flex;align-items:center;gap:6px;cursor:pointer;transition:all .2s ease;animation:fadeInUp .4s ease-out forwards;opacity:0}.language-pill:hover{background:#534ab7;border-color:#534ab7}.language-flag{font-size:16px}.language-name{font-size:12px;font-weight:600;color:#534ab7;transition:color .2s ease}.language-pill:hover .language-name{color:#fff}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1024px){.language-strip-content{flex-direction:column;gap:12px}.language-strip-label{margin-right:0;text-align:center}.language-pills{justify-content:center}}@media (max-width: 768px){.language-strip-label{font-size:12px}.language-pill{padding:4px 10px}.language-name{font-size:11px}.language-flag{font-size:14px}.language-pills{max-width:100%}}.quiz-section{margin:-1px 0 0;padding:20px;background:var(--card);border:1px solid var(--border);border-top:none;border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow)}.quiz-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.quiz-heading{font-size:20px;font-weight:600;margin:0;color:var(--brand)}.quiz-heading:before{content:"✦ "}.quiz-counter{font-size:11px;font-weight:500;color:var(--muted)}.quiz-container{max-width:700px;margin:0 auto}.quiz-progress-bar{width:100%;height:3px;background:#0f172a14;border-radius:999px;overflow:hidden;margin-bottom:14px}.quiz-progress-fill{height:100%;background:linear-gradient(90deg,#6d28d9,#ec4899);transition:width .3s ease}.quiz-question{margin-top:8px}.quiz-question-text{font-size:16px;font-weight:500;color:var(--text);margin:0 0 12px;line-height:1.5}.quiz-options{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:12px}.quiz-option{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--card);border:1.5px solid var(--border);border-radius:20px;font-family:Nunito,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";font-size:20px;font-weight:500;color:var(--text);text-align:left;cursor:pointer;transition:all .15s ease}.quiz-option:before{content:attr(data-letter);display:flex;align-items:center;justify-content:center;width:20px;height:20px;background:#6d28d91a;color:var(--brand);border-radius:50%;font-size:11px;font-weight:700;flex-shrink:0}.quiz-option:hover{border-color:#6d28d94d;background:#6d28d90d}.quiz-option-selected{border-color:var(--brand);background:#6d28d914;color:var(--text)}.quiz-option-selected:before{background:var(--brand);color:#fff}.quiz-option-correct{border-color:#22c55e;background:#22c55e14}.quiz-option-correct:before{background:#22c55e;color:#fff}.quiz-option-wrong{border-color:#ef4444;background:#ef444414}.quiz-option-wrong:before{background:#ef4444;color:#fff}.quiz-next-btn{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;font-size:13px;font-weight:600;background:var(--brand);border:none;color:#fff;border-radius:20px;margin-left:auto;cursor:pointer;transition:all .15s ease}.quiz-next-btn:hover:not(:disabled){background:#5b21b6}.quiz-next-btn:disabled{opacity:.45;cursor:not-allowed}.quiz-actions{display:flex;justify-content:flex-end}.quiz-results{max-width:700px;margin:0 auto}.quiz-score-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}.quiz-score-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:var(--brand);color:#fff;border-radius:20px;font-size:13px;font-weight:600}.quiz-score-pill:before{content:"●";font-size:8px}.quiz-message{font-size:12px;font-weight:500;color:var(--muted);margin:0 0 16px}.quiz-review{margin-bottom:16px}.quiz-review-row{display:flex;align-items:flex-start;gap:10px;padding:12px;margin-bottom:8px;border-radius:12px;font-size:13px;line-height:1.5}.quiz-review-row-correct{background:#22c55e14;color:var(--text)}.quiz-review-row-wrong{background:#ef444414;color:var(--text)}.quiz-review-icon{flex-shrink:0;width:18px;height:18px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:11px;font-weight:700}.quiz-review-row-correct .quiz-review-icon{background:#22c55e;color:#fff}.quiz-review-row-wrong .quiz-review-icon{background:#ef4444;color:#fff}.quiz-review-content{flex:1}.quiz-review-question-text{font-weight:600;margin:0 0 4px}.quiz-review-answer{font-size:12px;color:var(--muted)}.quiz-try-again{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;font-size:13px;font-weight:600;background:#6d28d91a;border:none;color:var(--brand);border-radius:20px;cursor:pointer;transition:all .15s ease}.quiz-try-again:hover{background:#6d28d926}@media (max-width: 768px){.quiz-section{padding:24px 20px;margin:32px 0}.quiz-heading{font-size:24px}.quiz-question-text{font-size:18px}.quiz-option{padding:14px 16px;font-size:15px}.quiz-score h3{font-size:28px}.quiz-message{font-size:16px}}