:root{--green:#49b47e;--green-dark:#174b3e;--green-soft:#e7f5ec;--cream:#fbf7ef;--lilac:#f2edf8;--purple:#6550a7;--ink:#282629;--muted:#716e73;--red:#c74747;--border:rgba(23,75,62,.14);--shadow:0 14px 40px rgba(35,49,43,.09);--radius:22px}*{box-sizing:border-box}[hidden]{display:none!important}html{min-height:100%;background:var(--cream);scrollbar-gutter:stable}body{margin:0;min-height:100vh;color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--cream);isolation:isolate}body::before{content:"";position:fixed;inset:0;background:url("assets/creser-pattern.svg") left top/900px repeat;opacity:.32;pointer-events:none;z-index:-1}.loading{min-height:100vh;display:grid;place-content:center;text-align:center;color:var(--green-dark);gap:12px}.spinner{width:42px;height:42px;border:4px solid #d9e8df;border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;margin:auto}@keyframes spin{to{transform:rotate(360deg)}}header{width:100%;height:92px;padding:16px clamp(18px,4vw,64px);display:flex;align-items:center;justify-content:space-between;background:transparent;border:0;position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;text-decoration:none;color:var(--green-dark)}.brand img{width:126px;height:60px;object-fit:contain;object-position:left center}.account{display:flex;align-items:center;gap:12px;border:0;background:transparent;cursor:pointer;color:var(--ink);font-size:15px;font-weight:650}.avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;background:var(--green-soft);border:2px solid #fff;box-shadow:0 3px 12px rgba(0,0,0,.08)}main{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:48px 0 70px;min-height:calc(100vh - 202px)}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}.page-head 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box-shadow}.course-card:hover{transform:translateY(-3px);box-shadow:0 18px 48px rgba(35,49,43,.14)}.course-image{aspect-ratio:1.55/1;background:linear-gradient(135deg,#d8f0e2,#ede7f5);display:grid;place-items:center;overflow:hidden}.course-image img{width:100%;height:100%;object-fit:cover}.course-image .placeholder{font-size:72px;color:var(--green-dark);opacity:.55}.course-body{padding:22px}.course-body h2{margin:0 0 8px;font-size:23px}.course-body p{margin:0;color:var(--muted);font-weight:650}.empty{min-height:420px;display:grid;place-content:center;text-align:center;background:rgba(255,255,255,.7);border:1px dashed var(--border);border-radius:var(--radius);color:var(--muted)}.empty span{font-size:54px}.empty h2{color:var(--green-dark)}footer{padding:28px 20px;background:var(--green-dark);color:#fff;text-align:center}footer a{color:#d9f3e5;text-decoration:none;margin:0 9px}.detail-shell{padding:34px;border-radius:28px;background:rgba(251,247,239,.82);border:1px solid var(--border);position:relative;overflow:hidden}.detail-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;pointer-events:none}.detail-content{position:relative}.crumb{display:flex;gap:10px;margin-bottom:32px}.detail-title h1{margin:0;color:var(--green-dark);font-family:Georgia,serif;font-size:clamp(32px,5vw,52px)}.category{color:var(--purple);font-weight:750;font-size:18px;margin-top:8px}.meta{color:var(--muted);line-height:1.7;margin:12px 0 34px}.live{background:rgba(231,245,236,.92);border:1px solid #bfdfcb;border-radius:16px;padding:17px 20px;margin-bottom:28px}.live a{color:var(--green-dark);font-weight:750;word-break:break-all}.module{background:rgba(255,255,255,.9);border:1px solid var(--border);border-radius:18px;margin:14px 0;overflow:hidden}.module.locked{opacity:.55}.module summary{cursor:pointer;padding:19px 22px;font-size:18px;font-weight:750;display:flex;align-items:center;justify-content:space-between;list-style:none}.module summary::-webkit-details-marker{display:none}.resources{padding:0 18px 18px}.resource{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;border-top:1px solid #eee}.resource-main{display:flex;align-items:center;gap:13px;min-width:0}.resource-icon{width:43px;height:43px;border-radius:13px;background:var(--lilac);color:var(--purple);display:grid;place-items:center;font-size:22px;flex:none}.resource-name{font-weight:700;overflow-wrap:anywhere}.resource-actions{display:flex;gap:7px;flex-wrap:wrap}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.tab{border:0;border-radius:30px;padding:11px 17px;background:rgba(255,255,255,.78);color:var(--green-dark);font-weight:700;cursor:pointer}.tab.active{background:var(--green-dark);color:#fff}.panel{background:rgba(255,255,255,.88);border:1px solid var(--border);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow)}.panel 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0}.list-card{border:1px solid var(--border);background:#fff;border-radius:16px;padding:17px;margin:12px 0}.list-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}.list-head h3{margin:0 0 5px}.muted{color:var(--muted)}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip{border-radius:20px;background:var(--lilac);color:var(--purple);padding:5px 10px;font-size:12px;font-weight:700}.progress{height:8px;background:#e8e6e2;border-radius:20px;overflow:hidden;margin-top:8px}.progress span{display:block;height:100%;background:var(--green);width:0}.dialog{border:0;padding:0;border-radius:22px;width:min(920px,calc(100% - 28px));max-height:90vh;box-shadow:0 25px 80px rgba(0,0,0,.25)}.dialog::backdrop{background:rgba(21,32,27,.58);backdrop-filter:blur(3px)}#dialog-content{padding:25px;max-height:88vh;overflow:auto}.dialog-close{float:right}.viewer{width:100%;height:min(72vh,750px);border:0;background:#111;border-radius:12px}.legal-viewer{background:#fff}.viewer-media{display:block;max-width:100%;max-height:70vh;margin:auto}.toast{position:fixed;right:24px;bottom:24px;max-width:380px;padding:14px 18px;border-radius:14px;background:var(--green-dark);color:#fff;box-shadow:var(--shadow);opacity:0;transform:translateY(16px);pointer-events:none;transition:.2s;z-index:100}.toast.show{opacity:1;transform:none}.toast.error{background:#9f3535}.menu{position:absolute;right:24px;top:76px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:7px;z-index:30}.menu a,.menu button{display:block;width:100%;padding:10px 14px;border:0;background:transparent;text-align:left;text-decoration:none;color:var(--ink);cursor:pointer;border-radius:9px}.menu a:hover,.menu button:hover{background:var(--green-soft)}@media(max-width:760px){header{height:76px;padding:10px 16px}.brand img{width:110px;height:52px}.account span{display:none}.avatar{width:42px;height:42px}main{padding:28px 0 50px}.page-head{align-items:flex-start;flex-direction:column}.grid,.form-grid{grid-template-columns:1fr}.detail-shell{padding:22px 16px}.resource{align-items:flex-start;flex-direction:column}.resource-actions{padding-left:56px}.panel{padding:18px}.tabs{overflow:auto;flex-wrap:nowrap}.tab{white-space:nowrap}}

