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@media(max-width:950px){.main-nav{gap:15px}.course-grid,.teacher-grid{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:42px}.hero-grid{gap:25px}.quick-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.container{width:min(100% - 28px,1180px)}.header-inner{min-height:68px}.brand{margin-left:auto}.brand strong{font-size:11px}.brand small{display:none}.header-actions{display:none}.menu-toggle{display:grid;width:40px;height:40px;place-content:center}.menu-toggle span{width:22px;height:2px;margin:2px;background:#087f9c}.main-nav{position:absolute;top:68px;right:14px;left:14px;display:none;flex-direction:column;align-items:stretch;gap:0;padding:10px;border:1px solid #d5e9ef;border-radius:13px;background:#fff;box-shadow:0 18px 45px rgba(0,70,90,.16)}.main-nav.open{display:flex}.main-nav a{padding:12px}.main-nav a:after{display:none}.hero,.hero-grid{min-height:auto}.hero-grid{grid-template-columns:1fr;padding:65px 0}.hero h1{font-size:36px}.hero-card{height:300px}.code-window{inset:10px 5px}.code-window pre{margin:45px 8px;font-size:13px}.code-window pre b{font-size:25px}.hero-stats{gap:12px}.hero-stats div{padding-left:12px}.quick-section{margin-top:-20px}.quick-grid a{min-height:70px;padding:13px}.section{padding:70px 0}.section-head{display:block}.section-head h2{font-size:27px}.section-head>p{margin-top:12px}.about-grid{grid-template-columns:1fr;gap:35px}.footer-grid{grid-template-columns:1fr;gap:25px}}
@media(max-width:470px){.course-grid,.teacher-grid{grid-template-columns:1fr}.quick-grid{grid-template-columns:1fr}.quick-grid a{border-left:0;border-bottom:1px solid #e2eef2}.hero h1{font-size:30px}.hero-copy>p{font-size:12px}.hero-actions a{padding:12px 15px}.hero-stats b{font-size:15px}}
.hero-admin-image{position:absolute;inset:20px 0 20px 20px;overflow:hidden;border:8px solid #fff;border-radius:25px;box-shadow:0 30px 70px rgba(3,80,103,.24);transform:rotate(-2deg)}.hero-admin-image img{width:100%;height:100%;object-fit:cover}
.course-cover{display:block;height:145px}.course-cover:after{position:absolute;z-index:1;inset:38% 0 0;background:linear-gradient(0deg,rgba(4,37,50,.94),rgba(4,37,50,0));content:''}.category-badge{z-index:2}.course-cover-info{position:absolute;z-index:2;right:14px;bottom:12px;left:14px;display:flex;align-items:end;justify-content:space-between;gap:10px;color:#fff}.course-cover-info strong{overflow:hidden;font-size:14px;line-height:1.7;text-overflow:ellipsis;white-space:nowrap}.course-cover-info small{flex:none;padding:4px 7px;border:1px solid rgba(255,255,255,.35);border-radius:6px;background:rgba(255,255,255,.15);font-size:9px;font-weight:800;white-space:nowrap}.course-body{padding:14px 16px 16px}.course-body>p{min-height:0;margin:0 0 9px;line-height:1.9;-webkit-line-clamp:1}
.copyright{position:relative;left:50%;display:grid;width:100vw;max-width:100vw;place-items:center;margin:40px 0 0;padding:18px 20px;border-top:1px solid rgba(255,255,255,.1);text-align:center!important;transform:translateX(-50%)}.copyright span{display:block;width:max-content;max-width:100%;margin:0 auto;text-align:center!important}.quick-grid{gap:14px;overflow:visible;border:0;background:transparent;box-shadow:none}.quick-grid a{position:relative;display:flex;min-height:106px;align-items:center;justify-content:center;gap:12px;overflow:hidden;border:1px solid #d6eaf0!important;border-radius:18px;background:linear-gradient(145deg,#fff,#f5fcfe);box-shadow:0 15px 35px rgba(3,89,111,.09);text-align:center;transition:.22s}.quick-grid a:before{position:absolute;right:-32px;bottom:-43px;width:105px;height:105px;border-radius:50%;background:rgba(0,151,182,.06);content:''}.quick-grid a:hover{border-color:#90cfdb!important;box-shadow:0 20px 44px rgba(3,89,111,.15);transform:translateY(-4px)}.quick-icon{position:relative;display:grid;flex:0 0 44px;width:44px;height:44px;place-items:center;overflow:hidden;border-radius:13px;background:#e3f6fa!important;color:#008dab!important;font-size:20px!important}.quick-icon img{display:block;width:24px!important;height:24px!important;max-width:24px!important;max-height:24px!important;object-fit:contain;object-position:center}.quick-copy{position:relative;display:flex;min-width:0;align-items:center;justify-content:center;text-align:center}.quick-copy b{color:#123746;font-size:14px;text-align:center}.teacher-avatar{overflow:hidden;padding:0;border:6px solid #e2f5f8;background:#dff3f7}.teacher-avatar img{width:100%;height:100%;object-fit:cover}
@media(max-width:720px){.quick-grid a{min-height:92px}.quick-icon{flex-basis:40px;width:40px;height:40px}.quick-icon img{width:22px!important;height:22px!important;max-width:22px!important;max-height:22px!important}}
.catalog-page{background:#f5fafc}.catalog-hero{padding:72px 0 64px;background:radial-gradient(circle at 15% 20%,rgba(76,205,226,.2),transparent 30%),linear-gradient(135deg,#eaf8fb,#fff);text-align:center}.catalog-hero span{color:#008dab;font-size:13px;font-weight:900}.catalog-hero h1{margin:10px 0;color:#0b3345;font-size:42px}.catalog-hero p{max-width:680px;margin:0 auto;color:#607e8a;font-size:13px;line-height:2}.course-search{max-width:760px;margin:30px auto 0;text-align:right}.course-search label{display:block;margin:0 3px 7px;color:#355c6a;font-size:12px;font-weight:800}.course-search>div{display:flex;gap:8px}.course-search input{flex:1;min-width:0;height:50px;padding:0 16px;border:1px solid #badde5;border-radius:11px;background:#fff;color:#123746;outline:none}.course-search input:focus{border-color:#008eae;box-shadow:0 0 0 4px rgba(0,142,174,.1)}.course-search button,.course-search a{display:grid;min-width:100px;height:50px;place-items:center;border:0;border-radius:11px;background:#008eae;color:#fff;font-size:12px;font-weight:900}.course-search a{min-width:80px;border:1px solid #c9e3e9;background:#fff;color:#087f9c}.catalog-results{padding-top:58px}.catalog-summary{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.catalog-summary h2{margin:0;color:#123746;font-size:27px}.catalog-summary span{padding:7px 12px;border-radius:20px;background:#e2f5f8;color:#087f9c;font-size:11px;font-weight:800}.teacher-directory .teacher-card{min-height:285px}.teacher-directory .teacher-avatar{width:104px;height:104px}.teacher-directory .teacher-card p{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:4}.teachers-catalog-hero{padding-bottom:72px}@media(max-width:720px){.catalog-hero{padding:50px 0}.catalog-hero h1{font-size:31px}.course-search>div{flex-wrap:wrap}.course-search input{flex-basis:100%}.course-search button,.course-search a{flex:1}.catalog-summary h2{font-size:22px}}
.header-inner{display:grid;grid-template-columns:minmax(190px,1fr) auto minmax(190px,1fr);gap:24px}.brand{justify-self:start;margin-left:0}.main-nav{justify-self:center;justify-content:center}.header-actions{justify-self:end}.hero-slides{position:relative;min-height:625px}.hero-slide{position:absolute;inset:0;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .55s ease,visibility .55s ease}.hero-slide.active{position:relative;visibility:visible;opacity:1;pointer-events:auto}.hero-admin-image picture{display:block;width:100%;height:100%}.hero-arrow{position:absolute;z-index:5;top:50%;display:grid;width:42px;height:42px;place-items:center;border:1px solid #b9dfe7;border-radius:50%;background:rgba(255,255,255,.9);color:#087f9c;font-size:30px;line-height:1;box-shadow:0 10px 30px rgba(0,82,103,.14);transform:translateY(-50%)}.hero-prev{right:18px}.hero-next{left:18px}.hero-dots{position:absolute;z-index:6;right:50%;bottom:22px;display:flex;gap:7px;transform:translateX(50%)}.hero-dots button{width:8px;height:8px;padding:0;border:0;border-radius:10px;background:#9dcbd5;transition:.2s}.hero-dots button.active{width:25px;background:#008eae}.hero.dragging{cursor:grabbing}.current-upload-preview{display:block;width:100%;max-width:260px;height:115px;margin:8px 0 10px;border:1px solid #d2e7ec;border-radius:10px;background:#eef8fa;object-fit:cover}.current-upload-preview.cover-preview{max-width:150px;height:180px;object-fit:contain}
@media(max-width:950px) and (min-width:721px){.header-inner{grid-template-columns:1fr auto 1fr;gap:14px}.main-nav{gap:12px}.brand strong{font-size:12px}.brand small{display:none}.login-link,.primary-link{padding:9px 11px}}
@media(max-width:720px){.header-inner{display:flex}.brand{margin-left:auto}.hero-slides{min-height:auto}.hero-slide{display:none;position:relative}.hero-slide.active{display:block}.hero-arrow{top:auto;bottom:12px;width:36px;height:36px}.hero-prev{right:14px}.hero-next{left:14px}.hero-dots{bottom:25px}}
.hero-arrow{display:none!important}.quick-section{margin-top:22px}@media(max-width:720px){.quick-section{margin-top:16px}}