:root{--bg:#0a0d12;--bg-elev:#111827;--bg-elev-2:#161e2e;--border:#1e293b;--border-strong:#334155;--text:#e6e9ef;--text-dim:#94a3b8;--text-faint:#64748b;--gold:#d4af37;--gold-dim:#a8862a;--green:#2ecc71;--blue:#3b82f6;--red:#ef4444;--radius:12px;--radius-sm:8px;--shadow:0 8px 30px #0006;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;direction:rtl;min-height:100vh;font-family:Segoe UI,Assistant,system-ui,-apple-system,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}h1,h2,h3,h4{margin:0 0 .4em;font-weight:700;line-height:1.25}.app-shell{flex-direction:column;min-height:100vh;display:flex}.container{width:100%;max-width:1080px;margin:0 auto;padding:24px 20px}.topbar{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:20;background:#0a0d12d9;justify-content:space-between;align-items:center;padding:14px 24px;display:flex;position:sticky;top:0}.brand{align-items:baseline;gap:10px;display:flex}.brand strong{color:var(--gold);letter-spacing:.5px;font-size:20px}.brand span{color:var(--green);letter-spacing:1.5px;font-size:10px}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.center-screen{place-items:center;min-height:100vh;padding:24px;display:grid}.auth-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:400px;box-shadow:var(--shadow);padding:32px}label{color:var(--text-dim);margin:14px 0 6px;font-size:13px;display:block}input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);width:100%;color:var(--text);padding:10px 12px;font-family:inherit;font-size:14px}input:focus,textarea:focus,select:focus{border-color:var(--gold);outline:none}textarea{resize:vertical;min-height:70px}.btn{border-radius:var(--radius-sm);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;transition:filter .15s,background .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--gold);color:#1a1500}.btn-primary:hover:not(:disabled){filter:brightness(1.08)}.btn-ghost{border-color:var(--border-strong);color:var(--text);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-elev-2)}.btn-ghost.active{background:var(--bg-elev-2);border-color:var(--gold-dim);color:var(--gold)}.btn-danger{border-color:var(--red);color:var(--red);background:0 0}.btn-sm{padding:6px 12px;font-size:13px}.btn-block{width:100%}.error-msg{color:#fca5a5;border-radius:var(--radius-sm);background:#ef44441f;border:1px solid #ef444466;margin-top:12px;padding:10px 12px;font-size:13px}.muted{color:var(--text-dim)}.faint{color:var(--text-faint);font-size:12px}.spinner{border:3px solid var(--border-strong);border-top-color:var(--gold);border-radius:50%;width:34px;height:34px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.spin{animation:.8s linear infinite spin}.chapter{margin-bottom:28px}.chapter-title{color:var(--gold);border-bottom:1px solid var(--border);align-items:center;gap:10px;margin-bottom:12px;padding-bottom:8px;font-size:18px;display:flex}.lesson-row{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:14px;margin-bottom:8px;padding:14px 16px;transition:border-color .15s,background .15s;display:flex}.lesson-row:hover{border-color:var(--border-strong);background:var(--bg-elev-2)}.lesson-check{border:2px solid var(--border-strong);width:24px;height:24px;color:var(--text-faint);border-radius:50%;flex:none;place-items:center;display:grid}.lesson-check.done{border-color:var(--green);color:var(--green)}.lesson-main{flex:1;min-width:0}.lesson-main h4{margin:0;font-size:15px;font-weight:600}.lesson-main p{color:var(--text-dim);white-space:nowrap;text-overflow:ellipsis;margin:2px 0 0;font-size:12px;overflow:hidden}.badge{border:1px solid var(--border-strong);color:var(--text-dim);border-radius:999px;padding:2px 8px;font-size:11px}.badge.draft{border-color:var(--gold-dim);color:var(--gold)}.badge.active{border-color:var(--green);color:var(--green)}.lesson-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px;display:flex}.lesson-breadcrumb{color:var(--gold);text-transform:uppercase;letter-spacing:.6px;margin:0 0 4px;font-size:12px}.lesson-header h1{margin:0}.lesson-header .btn{flex:none}.video-wrap{border-radius:var(--radius);border:1px solid var(--border);background:#000;width:100%;padding-top:56.25%;position:relative;overflow:hidden}.video-wrap iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.admin-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.row{align-items:center;gap:10px;display:flex}.grip{cursor:grab;color:var(--text-faint);flex:none}.preview-banner{border:1px solid var(--gold-dim);border-radius:var(--radius-sm);color:var(--gold);background:linear-gradient(90deg,#d4af3726,#0000);justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;padding:8px 14px;font-size:13px;display:flex}.modal-overlay{z-index:50;background:#000000a6;place-items:center;padding:20px;display:grid;position:fixed;inset:0;overflow-y:auto}.admin-chapter{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;padding:16px}.admin-lesson{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:10px;margin-bottom:8px;padding:10px 12px;display:flex}.admin-lesson .lesson-main h4{font-size:14px}.dragging{opacity:.5}.drop-target{outline:2px dashed var(--gold-dim);outline-offset:4px;border-radius:var(--radius);min-height:8px}.app-layout{align-items:stretch;min-height:100vh;display:flex}.sidebar{background:var(--bg-elev);border-inline-start:1px solid var(--border);flex-direction:column;flex:none;width:300px;height:100vh;min-height:100vh;display:flex;position:sticky;top:0;overflow-y:auto}.sidebar-header{justify-content:center;padding:20px 20px 12px;display:flex}.sidebar-logo{border-radius:var(--radius-sm);width:100%;max-width:140px;height:auto}.sidebar-progress{margin:0 16px 12px}.sidebar-progress-label{color:var(--text-dim);justify-content:space-between;margin-bottom:6px;font-size:12px;display:flex}.progress-track{background:var(--bg);border:1px solid var(--border);border-radius:999px;height:6px;overflow:hidden}.progress-fill{background:var(--gold);border-radius:999px;height:100%;transition:width .25s}.sidebar-search{background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text-faint);align-items:center;gap:8px;margin:0 16px 12px;padding:8px 10px;display:flex}.sidebar-search input{background:0 0;border:none;flex:1;padding:0;font-size:13px}.sidebar-search input:focus{outline:none}.sidebar-nav{flex:1;padding:4px 12px 12px;overflow-y:auto}.sidebar-chapter{margin-bottom:14px}.sidebar-chapter h4{text-transform:uppercase;letter-spacing:.6px;color:var(--text-faint);margin-bottom:6px;padding:0 8px;font-size:12px}.sidebar-chapter-toggle{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;display:flex}.sidebar-chapter-toggle .chevron{flex-shrink:0;transition:transform .15s;transform:rotate(-90deg)}.sidebar-chapter-toggle .chevron.expanded{transform:rotate(0)}.sidebar-lesson{border-radius:var(--radius-sm);color:var(--text-dim);align-items:center;gap:10px;padding:9px 8px;font-size:13px;transition:background .12s,color .12s;display:flex}.sidebar-lesson:hover{background:var(--bg-elev-2);color:var(--text)}.sidebar-lesson.active{color:var(--gold);background:#d4af371f}.sidebar-lesson-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.sidebar-lesson-duration{color:var(--text-faint);direction:ltr;flex:none;font-size:11px}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:6px;padding:12px;display:flex}.main-content{flex:1;min-width:0;overflow-y:auto}@media (width<=860px){.app-layout{flex-direction:column}.sidebar{border-inline-start:none;border-bottom:1px solid var(--border);width:100%;height:auto;min-height:0;position:static}}