.admin-dashboard{position:fixed;inset:0;background:var(--bg);background-image:radial-gradient(circle,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px;overflow-y:auto;z-index:60;font-family:Inter,Heebo,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.admin-topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:16px;padding:16px 32px;background:#111113f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}.admin-back-btn{display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);border-radius:8px;color:var(--text-dim);cursor:pointer;padding:6px;transition:background .2s,color .2s,border-color .2s}.admin-back-btn:hover{background:var(--surface-hover);color:var(--text);border-color:var(--border-hover)}.admin-topbar-title{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.01em}.admin-topbar-subtitle{font-size:13px;color:var(--text-dim);margin-inline-start:auto}.admin-content{padding:32px;max-width:1200px;margin:0 auto}.admin-search-bar{display:flex;align-items:center;gap:12px;margin-bottom:24px}.admin-search-input{flex:1;max-width:400px;padding:10px 16px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-family:Inter,Heebo,sans-serif;outline:none;transition:border-color .2s}.admin-search-input::placeholder{color:var(--text-dim)}.admin-search-input:focus{border-color:var(--accent)}.admin-create-btn{display:flex;align-items:center;gap:6px;padding:10px 18px;border-radius:10px;border:none;background:var(--accent);color:#fff;font-size:14px;font-weight:600;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,transform .1s;white-space:nowrap}.admin-create-btn:hover{background:#0991d3;transform:translateY(-1px)}.admin-table-wrapper{overflow-x:auto;border-radius:16px;border:1px solid var(--border);background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur))}.admin-table{width:100%;border-collapse:collapse;min-width:640px}.admin-table th{text-align:start;padding:14px 20px;font-size:11px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border);white-space:nowrap}.admin-table td{padding:14px 20px;font-size:14px;color:var(--text-secondary);border-bottom:1px solid rgba(255,255,255,.04)}.admin-table tbody tr{cursor:pointer;transition:background .15s}.admin-table tbody tr:hover{background:var(--surface-hover)}.admin-table tbody tr:last-child td{border-bottom:none}.admin-user-name{color:var(--text);font-weight:500}.admin-user-email{font-size:12px;color:var(--text-dim);margin-top:2px}.admin-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}.admin-badge.paid{background:#22c55e1f;color:#22c55e}.admin-badge.pending{background:#eab3081f;color:#eab308}.admin-badge.none{background:#6b72801f;color:#6b7280}.admin-badge.admin{background:#0ea5e91f;color:var(--accent)}.admin-pagination{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--text-dim)}.admin-pagination-btns{display:flex;gap:8px}.admin-page-btn{padding:6px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text-secondary);font-size:13px;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,border-color .2s}.admin-page-btn:hover:not(:disabled){background:var(--surface-hover);border-color:var(--border-hover)}.admin-page-btn:disabled{opacity:.3;cursor:default}.admin-skeleton-row{display:flex;gap:20px;padding:14px 20px;border-bottom:1px solid rgba(255,255,255,.04)}.admin-skeleton-cell{height:16px;border-radius:4px;background:#ffffff0f;animation:admin-pulse 1.5s ease-in-out infinite}@keyframes admin-pulse{0%,to{opacity:.6}50%{opacity:.3}}.admin-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.admin-card{background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:16px;padding:24px}.admin-card-title{font-size:14px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:20px;display:flex;align-items:center;gap:8px}.admin-card-full{grid-column:1 / -1}.admin-user-info-grid{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;font-size:14px}.admin-info-label{color:var(--text-dim);font-weight:500}.admin-info-value{color:var(--text)}.admin-form{display:flex;flex-direction:column;gap:16px}.admin-form-field{display:flex;flex-direction:column;gap:6px}.admin-form-label{font-size:12px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em}.admin-form-input{padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:#ffffff08;color:var(--text);font-size:14px;font-family:Inter,Heebo,sans-serif;outline:none;transition:border-color .2s}.admin-form-input::placeholder{color:var(--text-dim)}.admin-form-input:focus{border-color:var(--accent)}.admin-form-input.error{border-color:#ef4444}.admin-form-error{font-size:12px;color:#ef4444}.admin-form-checkbox{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-secondary);cursor:pointer}.admin-form-checkbox input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer}.admin-form-actions{display:flex;gap:10px;margin-top:8px}.admin-btn{padding:10px 20px;border-radius:10px;border:none;font-size:14px;font-weight:600;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,transform .1s,opacity .2s}.admin-btn:disabled{opacity:.5;cursor:not-allowed}.admin-btn.primary{background:var(--accent);color:#fff}.admin-btn.primary:hover:not(:disabled){background:#0991d3;transform:translateY(-1px)}.admin-btn.secondary{background:var(--surface);color:var(--text-secondary);border:1px solid var(--border)}.admin-btn.secondary:hover:not(:disabled){background:var(--surface-hover);border-color:var(--border-hover)}.admin-btn.danger{background:#ef44441a;color:#ef4444;border:1px solid rgba(239,68,68,.2)}.admin-btn.danger:hover:not(:disabled){background:#ef444433}.admin-sessions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.admin-session-card{padding:16px;border-radius:12px;border:1px solid var(--border);text-align:center;cursor:pointer;transition:all .2s}.admin-session-card.has-access{background:#22c55e14;border-color:#22c55e33}.admin-session-card.no-access{background:#6b72800f;border-color:var(--border)}.admin-session-card:hover{border-color:var(--border-hover);transform:translateY(-1px)}.admin-session-number{font-size:24px;font-weight:700;margin-bottom:4px}.admin-session-card.has-access .admin-session-number{color:#22c55e}.admin-session-card.no-access .admin-session-number{color:var(--text-dim)}.admin-session-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.admin-session-card.has-access .admin-session-label{color:#22c55eb3}.admin-session-card.no-access .admin-session-label{color:var(--text-dim)}.admin-access-actions{display:flex;gap:10px;margin-top:16px}.admin-grant-select{margin-top:16px;display:flex;gap:10px;align-items:center}.admin-select{flex:1;padding:8px 12px;border-radius:8px;border:1px solid var(--border);background:#ffffff08;color:var(--text);font-size:13px;font-family:Inter,Heebo,sans-serif;outline:none}.admin-select:focus{border-color:var(--accent)}.admin-payments-list{display:flex;flex-direction:column;gap:10px}.admin-payment-row{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:10px;background:#ffffff05;border:1px solid rgba(255,255,255,.04)}.admin-payment-info{display:flex;flex-direction:column;gap:2px}.admin-payment-product{font-size:14px;color:var(--text);font-weight:500}.admin-payment-date{font-size:12px;color:var(--text-dim)}.admin-payment-amount{font-size:16px;font-weight:600;color:var(--text)}.admin-confirm-overlay{position:fixed;inset:0;z-index:200;background:#000000b3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center}.admin-confirm-dialog{background:#141418f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:16px;padding:32px;max-width:400px;width:90%;text-align:center}.admin-confirm-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:8px}.admin-confirm-message{font-size:14px;color:var(--text-secondary);margin-bottom:24px;line-height:1.5}.admin-confirm-actions{display:flex;gap:10px;justify-content:center}.admin-empty{text-align:center;padding:40px 20px;color:var(--text-dim);font-size:14px}.admin-error{text-align:center;padding:24px 20px;color:#ef4444;font-size:14px}@media(max-width:767px){.admin-topbar{padding:12px 16px}.admin-content{padding:16px}.admin-detail-grid{grid-template-columns:1fr}.admin-sessions-grid{grid-template-columns:repeat(2,1fr)}.admin-search-bar{flex-direction:column;align-items:stretch}.admin-search-input{max-width:none}}.payment-page{position:fixed;inset:0;background:var(--bg);background-image:radial-gradient(circle,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px;overflow-y:auto;z-index:55;font-family:Inter,Heebo,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.payment-topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 24px;background:#111113f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}.payment-topbar-left{display:flex;align-items:center;gap:12px}.payment-back-btn{display:flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--text-dim);cursor:pointer;padding-block:6px;padding-inline-start:10px;padding-inline-end:14px;font-size:13px;font-weight:500;font-family:Inter,Heebo,sans-serif;transition:background .2s,color .2s,border-color .2s}.payment-back-btn:hover{background:var(--surface-hover);color:var(--text);border-color:var(--border-hover)}.payment-footer-back{text-align:center;padding:16px 24px 48px}.payment-footer-back button{display:inline-flex;align-items:center;gap:6px;background:transparent;border:none;color:var(--text-dim);font-size:13px;font-family:Inter,Heebo,sans-serif;cursor:pointer;padding:8px 12px;border-radius:8px;transition:color .2s,background .2s}.payment-footer-back button:hover{color:var(--text);background:var(--surface-hover)}.payment-topbar-title{font-size:16px;font-weight:600;color:#fff}.payment-hero{text-align:center;padding:48px 24px 32px;max-width:600px;margin:0 auto}.payment-hero h1{font-size:32px;font-weight:700;color:#fff;margin-bottom:12px}.payment-hero p{font-size:16px;color:var(--text-secondary)}.payment-hero p.payment-hero-discount{display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:8px 16px;background:#f59e0b1f;border:1px solid rgba(245,158,11,.3);border-radius:8px;color:#f59e0b;font-size:14px;font-weight:500}.payment-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;max-width:1100px;margin:0 auto;padding:0 24px 60px}.payment-session-card{background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-top:3px solid var(--card-accent, var(--accent));border-radius:16px;padding:24px;transition:border-color .2s,box-shadow .2s}.payment-session-card:hover{border-color:var(--border-hover);box-shadow:0 4px 24px #0003}.payment-session-card.purchased{border-top-color:#22c55e;box-shadow:0 0 20px #22c55e14}.payment-session-card.coming-soon{opacity:.5;border-style:dashed;border-top:3px dashed var(--border)}.payment-session-card.bundle-highlight{border:1px solid rgba(139,92,246,.4);border-top:3px solid #8B5CF6;position:relative;box-shadow:0 0 20px #8b5cf61a;transform:scale(1.03)}.payment-session-card.bundle-highlight:hover{border-color:#8b5cf699;box-shadow:0 0 30px #8b5cf62e}.payment-bundle-ribbon{position:absolute;top:12px;right:-8px;background:linear-gradient(135deg,#8b5cf6,#6d28d9);color:#fff;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;padding:4px 14px 4px 10px;border-radius:4px 0 0 4px;box-shadow:0 2px 8px #8b5cf666}.payment-bundle-ribbon:after{content:"";position:absolute;right:0;bottom:-8px;border:4px solid transparent;border-top-color:#4c1d95;border-right-color:#4c1d95}.payment-bundle-sessions-inline{display:flex;gap:6px;margin-bottom:16px}.payment-bundle-sessions-inline span{font-size:11px;padding:3px 10px;border-radius:10px;background:#8b5cf61a;color:#a78bfa;font-weight:500}.payment-session-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.payment-session-number{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff}.payment-session-title{font-size:18px;font-weight:600;color:var(--text)}.payment-session-subtitle{font-size:13px;color:var(--text-secondary);margin-bottom:16px;line-height:1.5}.payment-session-meta{display:flex;gap:16px;font-size:12px;color:var(--text-dim);margin-bottom:20px}.payment-session-meta svg,.payment-session-meta .icon{font-size:14px;vertical-align:middle}.payment-price-section{margin-bottom:16px}.payment-price{font-size:28px;font-weight:700;color:var(--text)}.payment-price-note{font-size:12px;color:var(--text-dim);margin-top:4px}.payment-price-note s{text-decoration:line-through}.payment-buy-btn{width:100%;padding:12px 20px;border-radius:10px;border:none;font-size:14px;font-weight:600;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,transform .1s}.payment-buy-btn.primary{background:var(--accent);color:#fff}.payment-buy-btn.primary:hover{background:#0991d3;transform:translateY(-1px)}.payment-buy-btn.signin{background:transparent;border:1px solid var(--accent);color:var(--accent)}.payment-buy-btn.signin:hover{background:#0ea5e91a}.payment-buy-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.payment-buy-btn.purchased{background:#22c55e1a;color:#22c55e;border:1px solid rgba(34,197,94,.2)}.payment-purchased-badge{display:inline-flex;align-items:center;gap:6px;background:#22c55e1a;color:#22c55e;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}.payment-coming-soon-badge{display:inline-flex;align-items:center;gap:6px;background:var(--surface);color:var(--text-dim);padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}.payment-success-backdrop{position:fixed;inset:0;background:#000000b3;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:200;display:flex;align-items:center;justify-content:center;padding:24px}.payment-success-modal{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:40px 32px 32px;max-width:420px;width:100%;text-align:center;box-shadow:0 24px 80px #00000080}.payment-success-icon{margin-bottom:16px}.payment-success-icon .material-icons-round{font-size:56px;color:#22c55e}.payment-success-title{font-size:24px;font-weight:700;color:var(--text);margin:0 0 8px}.payment-success-message{font-size:14px;color:var(--text-secondary);margin:0 0 28px;line-height:1.5}.payment-whatsapp-section{background:#25d36614;border:1px solid rgba(37,211,102,.2);border-radius:14px;padding:20px;margin-bottom:20px}.payment-whatsapp-header{display:flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}.payment-whatsapp-icon{flex-shrink:0}.payment-whatsapp-desc{font-size:13px;color:var(--text-secondary);margin:0 0 14px}.payment-whatsapp-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;background:#25d366;color:#fff;border:none;border-radius:10px;font-size:14px;font-weight:600;font-family:Inter,Heebo,sans-serif;text-decoration:none;cursor:pointer;transition:background .2s,transform .1s}.payment-whatsapp-btn:hover{background:#1ebe5a;transform:translateY(-1px)}.payment-success-continue{width:100%;padding:12px 20px;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);font-size:14px;font-weight:500;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,color .2s}.payment-success-continue:hover{background:var(--surface-hover);color:var(--text)}.payment-error-toast{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#ef4444e6;color:#fff;padding:12px 24px;border-radius:10px;font-size:14px;font-weight:500;z-index:100;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;align-items:center;gap:8px;max-width:500px;text-align:start}.payment-coupon-section{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:16px}.payment-coupon-row{display:flex;gap:8px;width:100%;max-width:360px}.payment-coupon-input{flex:1;padding:10px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-family:Inter,Heebo,sans-serif;text-transform:uppercase;letter-spacing:1px;outline:none;transition:border-color .2s}.payment-coupon-input:focus{border-color:var(--accent)}.payment-coupon-input::placeholder{text-transform:none;letter-spacing:normal;color:var(--text-dim)}.payment-coupon-btn{padding:10px 18px;border-radius:8px;border:1px solid var(--accent);background:transparent;color:var(--accent);font-size:13px;font-weight:600;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,color .2s;white-space:nowrap}.payment-coupon-btn:hover{background:#0ea5e91a}.payment-coupon-btn:disabled{opacity:.5;cursor:not-allowed}.payment-coupon-btn.remove{border-color:var(--text-dim);color:var(--text-dim)}.payment-coupon-btn.remove:hover{border-color:#ef4444;color:#ef4444}.payment-coupon-result{font-size:13px;font-weight:500;display:flex;align-items:center;gap:6px}.payment-coupon-result.success{color:#22c55e}.payment-coupon-result.error{color:#ef4444}.payment-session-notice{display:flex;align-items:center;gap:6px;padding:6px 12px;margin-bottom:12px;background:#f59e0b1a;border:1px solid rgba(245,158,11,.25);border-radius:8px;color:#f59e0b;font-size:12px;font-weight:500}.payment-upgrade-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:12px;background:#8b5cf61f;color:#a78bfa;font-size:11px;font-weight:600;margin-top:4px}.payment-discount-row{display:flex;align-items:baseline;gap:8px;margin-top:2px}.payment-original-price{font-size:16px;color:var(--text-dim);text-decoration:line-through}.payment-discount-badge{font-size:11px;font-weight:600;color:#22c55e;background:#22c55e1a;padding:2px 8px;border-radius:10px}.payment-session-card.preorder-highlight{border:1px solid rgba(245,158,11,.3);border-top:3px solid #F59E0B;position:relative;box-shadow:0 0 20px #f59e0b14}.payment-session-card.preorder-highlight:hover{border-color:#f59e0b80;box-shadow:0 0 30px #f59e0b26}.payment-preorder-ribbon{position:absolute;top:12px;right:-8px;background:#f59e0b;color:#000;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;padding:4px 14px 4px 10px;border-radius:4px 0 0 4px;box-shadow:0 2px 8px #f59e0b66}.payment-preorder-ribbon:after{content:"";position:absolute;right:0;bottom:-8px;border:4px solid transparent;border-top-color:#b45309;border-right-color:#b45309}.payment-preorder-sessions-inline{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}.payment-preorder-sessions-inline span{font-size:11px;padding:3px 10px;border-radius:10px;background:#f59e0b1a;color:#fbbf24;font-weight:500}.payment-preorder-note{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-dim);margin-bottom:16px}.payment-buy-btn.preorder{background:#f59e0b;color:#000;font-weight:700}.payment-buy-btn.preorder:hover{background:#d97706;transform:translateY(-1px)}.payment-bundle-section{max-width:1100px;margin:0 auto;padding:0 24px 40px}.payment-bundle-title{font-size:20px;font-weight:700;color:var(--text);margin-bottom:16px;text-align:center}.payment-bundle-card{background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid rgba(139,92,246,.3);border-radius:16px;padding:28px 32px;max-width:560px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}.payment-bundle-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#8b5cf6,#0ea5e9)}.payment-bundle-info{flex:1}.payment-bundle-name{font-size:18px;font-weight:600;color:var(--text);margin-bottom:6px;display:flex;align-items:center;gap:8px}.payment-bundle-badge{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:#8b5cf6;background:#8b5cf61f;padding:3px 8px;border-radius:6px}.payment-bundle-desc{font-size:13px;color:var(--text-secondary);line-height:1.5}.payment-bundle-sessions{display:flex;gap:6px;margin-top:8px}.payment-bundle-sessions span{font-size:11px;padding:2px 8px;border-radius:10px;background:#ffffff0f;color:var(--text-dim)}.payment-bundle-action{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0}.payment-bundle-price{font-size:28px;font-weight:700;color:var(--text)}@media(max-width:768px){.payment-hero h1{font-size:24px}.payment-hero p{font-size:14px}.payment-grid{grid-template-columns:1fr;padding:0 16px 40px;gap:16px}.payment-topbar{padding:0 16px}.payment-bundle-card{flex-direction:column;text-align:center;padding:24px 20px}.payment-bundle-action{align-items:center}}[dir=rtl] .payment-back-btn{padding-block:6px;padding-inline-start:14px;padding-inline-end:10px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0A0A0B;--surface: rgba(255, 255, 255, .05);--surface-hover: rgba(255, 255, 255, .08);--border: rgba(255, 255, 255, .1);--border-hover: rgba(255, 255, 255, .2);--text: #F1F5F9;--text-secondary: #94A3B8;--text-dim: #64748B;--accent: #0EA5E9;--accent-glow: rgba(14, 165, 233, .5);--glass-blur: 20px;--color-vocabulary: #3B82F6;--color-technique: #22C55E;--color-example: #F59E0B;--color-concept: #6366F1;--color-diagram: #A855F7;--color-tool: #06B6D4;--color-tip: #F97316}html,body,#root{width:100%;height:100%;overflow:hidden;background:var(--bg);font-family:Inter,Heebo,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased}#root{background-image:radial-gradient(circle,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px}.glass-card{background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:16px;transition:border-color .2s,box-shadow .2s}.glass-card:hover{border-color:var(--border-hover)}.glass-card.clickable{cursor:pointer}.glass-card.clickable:hover{box-shadow:0 8px 32px #0000004d;transform:translateY(-2px);transition:transform .2s,box-shadow .2s,border-color .2s}.glass-card.active{border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow)}.session-card{width:320px;padding:24px;position:absolute}.session-card .session-number{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;margin-bottom:12px}.session-card .session-title{font-size:18px;font-weight:600;margin-bottom:4px;color:var(--text)}.session-card .session-subtitle{font-size:13px;color:var(--text-secondary);margin-bottom:12px}.session-card .session-meta{display:flex;gap:12px;font-size:12px;color:var(--text-dim)}.session-card .session-meta span{display:flex;align-items:center;gap:4px}.session-card .session-meta .material-icons-round{font-size:14px}.session-card.dimmed{opacity:.55}.session-card.dimmed:hover{opacity:.8}.session-view{position:relative;padding:30px 60px 60px}.session-view-header{display:flex;align-items:center;gap:16px;margin-bottom:40px}.session-view-header .sv-badge{width:44px;height:44px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;flex-shrink:0}.session-view-header .sv-title{font-size:28px;font-weight:700}.session-view-header .sv-subtitle{font-size:14px;color:var(--text-secondary);margin-top:2px}.blocks-timeline{display:flex;align-items:stretch;gap:0;position:relative;padding-bottom:40px}.block-timeline-item{display:flex;align-items:stretch;flex-shrink:0}.block-timeline-card{width:260px;padding:20px;cursor:pointer;position:relative;flex-shrink:0;overflow:hidden}.block-timeline-card.has-cover{width:260px;padding:16px;display:flex;flex-direction:column;gap:12px}.block-timeline-card.has-cover .btc-title{font-size:14px;margin-bottom:0}.btc-cover{flex:1;min-height:0}.btc-cover-img{width:100%;height:100%;object-fit:cover;border-radius:10px;display:block}.block-timeline-card .btc-number{font-size:11px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}.block-timeline-card .btc-title{font-size:16px;font-weight:600;margin-bottom:8px;line-height:1.3}.block-timeline-card .btc-topics{list-style:none;font-size:12px;color:var(--text-secondary);line-height:1.6}.block-timeline-card .btc-topics li{padding-inline-start:10px;position:relative}.block-timeline-card .btc-topics li:before{content:"";position:absolute;inset-inline-start:0;top:8px;width:3px;height:3px;border-radius:50%;background:var(--accent)}.btc-completed-badge{position:absolute;top:10px;inset-inline-end:10px;z-index:2}.btc-completed-badge .material-icons-round{font-size:20px;color:#22c55e;filter:drop-shadow(0 0 4px rgba(34,197,94,.4))}.block-connector{display:flex;align-items:center;padding:0 8px;flex-shrink:0}.block-connector-line{width:40px;height:2px;background:linear-gradient(90deg,var(--accent),rgba(14,165,233,.3));border-radius:1px}.deep-dives-section{margin-top:36px;padding-top:28px;border-top:1px solid var(--border)}.deep-dives-header{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-secondary);margin-bottom:16px}.deep-dives-header .material-icons-round{font-size:18px;color:var(--accent)}.deep-dives-grid{display:flex;flex-wrap:wrap;gap:10px}.deep-dive-chip{padding:8px 14px;border-radius:8px;background:#0ea5e90f;border:1px solid rgba(14,165,233,.12);font-size:12px;color:var(--text-dim);display:flex;align-items:center;gap:6px}.deep-dive-chip .material-icons-round{font-size:14px;opacity:.5}.block-view-wrapper{position:fixed;inset:0;overflow-y:auto;z-index:50;background:var(--bg);background-image:radial-gradient(circle,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px}.slide-view-wrapper{display:flex;width:100%;height:100%;min-height:100vh;padding-top:60px}.vocab-sidebar{width:220px;flex-shrink:0;padding:20px 16px;border-inline-end:1px solid var(--border);display:flex;flex-direction:column;gap:12px;overflow-y:auto;max-height:calc(100vh - 60px)}.vocab-sidebar.collapsed{width:48px;padding:20px 8px;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;border-inline-end:1px solid var(--border)}.vocab-sidebar.collapsed .material-icons-round{font-size:20px;color:var(--text-dim)}.vocab-sidebar.collapsed .vocab-count{font-size:11px;color:var(--text-dim);background:var(--surface);padding:2px 6px;border-radius:8px}.vocab-header{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text-secondary)}.vocab-header .material-icons-round{font-size:18px;color:var(--color-vocabulary)}.vocab-collapse-btn{margin-inline-start:auto;background:none;border:none;color:var(--text-dim);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center}.vocab-collapse-btn:hover{background:var(--surface-hover);color:var(--text-secondary)}.vocab-list{display:flex;flex-direction:column;gap:8px}.vocab-card{padding:10px 12px;border-radius:10px;background:var(--surface);border:1px solid var(--border);transition:opacity .3s,border-color .2s}.vocab-card.locked{display:flex;align-items:center;justify-content:center;min-height:48px}.vocab-locked .material-icons-round{font-size:16px;color:var(--text-dim);opacity:.4}.vocab-term{font-size:13px;font-weight:600;color:var(--color-vocabulary);margin-bottom:4px}.vocab-definition{font-size:11px;color:var(--text-secondary);line-height:1.4}.vocab-show-all{display:flex;align-items:center;justify-content:center;gap:4px;padding:6px 12px;border-radius:8px;background:var(--surface);border:1px solid var(--border);color:var(--text-dim);font-size:11px;cursor:pointer;font-family:inherit;transition:background .2s,color .2s;margin-top:auto}.vocab-show-all:hover{background:var(--surface-hover);color:var(--text-secondary)}.vocab-show-all .material-icons-round{font-size:16px}.slide-main{flex:1;display:flex;flex-direction:column;min-width:0;padding:20px 40px 24px;max-width:100%}.slide-main.with-sidebar{max-width:calc(100% - 220px)}.slide-header{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.slide-block-number{font-size:11px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.1em}.slide-block-title{font-size:22px;font-weight:700;color:var(--text)}.segment-strip{display:flex;gap:8px;padding:0 0 12px;overflow-x:auto;scrollbar-width:none}.segment-strip::-webkit-scrollbar{display:none}.segment-chip{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;background:var(--surface);border:1px solid var(--border);font-size:12px;color:var(--text-dim);white-space:nowrap;flex-shrink:0;transition:border-color .2s,color .2s}.segment-chip.has-video{border-color:#0ea5e933;color:var(--text-secondary)}.segment-chip-icon{font-size:14px;opacity:.6}.segment-chip-title{max-width:180px;overflow:hidden;text-overflow:ellipsis}.segment-chip-dur{font-size:11px;opacity:.5}.slide-content-area{flex:1;display:flex;align-items:center;justify-content:center;position:relative;min-height:400px}.slide-click-zone{position:absolute;top:0;bottom:0;width:15%;z-index:5;cursor:pointer}.slide-click-zone.left{inset-inline-start:0}.slide-click-zone.right{inset-inline-end:0}.slide-click-zone.left:hover{background:linear-gradient(to right,rgba(255,255,255,.02),transparent)}.slide-click-zone.right:hover{background:linear-gradient(to left,rgba(255,255,255,.02),transparent)}.slide-card{width:100%;max-width:800px;min-height:380px;border-radius:16px;background:var(--surface);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);padding:32px;position:relative;cursor:pointer;display:flex;flex-direction:column}.slide-card:hover{border-color:var(--border-hover)}.slide-card.flipped{border-color:#0ea5e933}.slide-visual{display:flex;flex-direction:column;flex:1;gap:20px}.slide-image-area{flex:1;display:flex;align-items:center;justify-content:center;min-height:200px}.slide-image{max-width:100%;max-height:50vh;object-fit:contain;border-radius:12px}.slide-placeholder{width:100%;height:200px;border-radius:12px;background:#ffffff05;border:1px dashed var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--type-color, var(--text-dim))}.slide-placeholder .material-icons-round{font-size:40px;opacity:.4}.slide-placeholder-label{font-size:12px;opacity:.5;text-transform:uppercase;letter-spacing:.05em}.slide-visual-info{display:flex;flex-direction:column;gap:6px}.slide-type-badge{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.slide-type-badge .material-icons-round{font-size:16px}.slide-title{font-size:20px;font-weight:600;color:var(--text);line-height:1.3}.slide-keypoint{font-size:14px;color:var(--text-secondary);line-height:1.5}.slide-teaching{display:flex;flex-direction:column;gap:12px;flex:1;overflow-y:auto}.slide-description{font-size:14px;color:var(--text-secondary);line-height:1.7}.slide-translations{display:flex;flex-direction:column;gap:8px}.translation-block{padding:10px 14px;border-radius:10px;background:#ffffff08;border:1px solid var(--border)}.translation-label{display:block;font-size:11px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}.translation-text{font-size:13px;color:var(--text-secondary);line-height:1.6;font-style:italic}.slide-image-small{max-width:60%;max-height:30vh;object-fit:contain;border-radius:10px;align-self:center;margin:8px 0}.slide-teaching--split{gap:8px}.slide-teaching-text{display:flex;flex-direction:column;gap:6px}.slide-back-media{display:flex;gap:12px;flex:1;min-height:0}.slide-back-image{flex:0 0 40%;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:10px;background:#ffffff0a}.slide-back-image img{width:100%;height:100%;object-fit:cover;border-radius:10px}.slide-back-video{flex:1}.slide-back-video-ratio{position:relative;width:100%;padding-top:56.25%;border-radius:10px;overflow:hidden;background:#000}.slide-back-iframe{position:absolute;top:0;inset-inline-start:0;width:100%;height:100%;border:none;border-radius:10px}@media(max-width:600px){.slide-back-media{flex-direction:column}.slide-back-image{flex:0 0 auto;max-height:30vw}}.slide-presentation-notes{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:10px;background:#0ea5e90f;border:1px solid rgba(14,165,233,.12);font-size:13px;color:var(--text-dim);line-height:1.5;margin-top:auto}.slide-presentation-notes .material-icons-round{font-size:16px;color:var(--accent);flex-shrink:0;margin-top:2px}.slide-flip-hint{position:absolute;bottom:12px;inset-inline-end:16px;display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text-dim);opacity:.4;transition:opacity .2s}.slide-card:hover .slide-flip-hint{opacity:.7}.slide-flip-hint .material-icons-round{font-size:14px}.video-slide{cursor:default}.video-slide--active{padding:16px}.video-player-area{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-dim);min-height:240px}.video-player-area .material-icons-round{font-size:64px;opacity:.25}.video-coming-soon{font-size:15px;opacity:.6}.video-player-wrapper{position:relative;width:100%;padding-top:56.25%;border-radius:12px;overflow:hidden;background:#000}.video-player-wrapper .video-react-player{position:absolute;inset:0}.video-loading-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0009;color:var(--text-dim)}.video-loading-overlay .material-icons-round{font-size:36px;animation:spin 1.5s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.video-slide-info{display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center;margin-top:12px}.exercise-card{cursor:default;border-color:color-mix(in srgb,var(--exercise-accent, var(--accent)) 25%,transparent)}.exercise-header{display:flex;align-items:center;gap:10px;margin-bottom:16px}.exercise-pause-icon{font-size:28px;color:var(--exercise-accent, var(--accent))}.exercise-label{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--exercise-accent, var(--accent))}.exercise-title{font-size:22px;font-weight:700;color:var(--text);margin-bottom:12px;line-height:1.3}.exercise-badges{display:flex;gap:10px;margin-bottom:20px}.exercise-badge{display:flex;align-items:center;gap:5px;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:500;border:1px solid var(--border);color:var(--text-secondary)}.exercise-badge .material-icons-round{font-size:14px}.exercise-diff-badge{text-transform:capitalize}.exercise-instructions{list-style:none;counter-reset:exercise-step;display:flex;flex-direction:column;gap:10px;flex:1;padding:0}.exercise-instructions li{counter-increment:exercise-step;display:flex;align-items:flex-start;gap:12px;font-size:14px;color:var(--text-secondary);line-height:1.6}.exercise-instructions li:before{content:counter(exercise-step);display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:color-mix(in srgb,var(--exercise-accent, var(--accent)) 12%,transparent);color:var(--exercise-accent, var(--accent));font-size:12px;font-weight:700;flex-shrink:0;margin-top:1px}.exercise-description{font-size:14px;color:var(--text-secondary);line-height:1.7;flex:1}.exercise-footer{display:flex;align-items:center;gap:8px;padding-top:16px;margin-top:auto;border-top:1px solid var(--border);font-size:12px;color:var(--text-dim)}.exercise-footer .material-icons-round{font-size:16px}.interactive-slide{cursor:pointer;-webkit-user-select:none;user-select:none}.interactive-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:16px 0}.sentence-display{font-size:32px;font-weight:600;text-align:center;letter-spacing:-.02em;line-height:1.4;color:var(--text);padding:0 12px}.sentence-blank{display:inline-block;min-width:100px;border-bottom:3px solid var(--accent);color:transparent;margin:0 4px;position:relative;animation:blank-pulse 2s ease-in-out infinite}@keyframes blank-pulse{0%,to{border-color:var(--accent);box-shadow:0 2px 0 var(--accent)}50%{border-color:#0ea5e966;box-shadow:0 2px #0ea5e966}}.sentence-answer{display:inline-block;color:#22c55e;border-bottom:3px solid #22C55E;padding:0 4px;margin:0 4px}.interactive-hint{font-size:16px;color:var(--text-secondary);text-align:center;max-width:520px;line-height:1.5}.probability-bar{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%;max-width:520px}.probability-label{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-dim)}.probability-steps{display:flex;align-items:center;gap:4px;width:100%}.probability-step{flex:1;text-align:center;padding:6px 4px;border-radius:6px;font-size:12px;font-weight:600;background:var(--surface);color:var(--text-dim);border:1px solid transparent;transition:all .3s ease}.probability-step.active{background:#0ea5e91a;color:var(--accent);border-color:#0ea5e933}.probability-step.current{background:#0ea5e933;color:#fff;border-color:var(--accent);box-shadow:0 0 12px #0ea5e94d}.context-image-reveal{position:absolute;top:16px;inset-inline-end:16px;z-index:2;pointer-events:none}.context-image{width:80px;height:auto;border-radius:8px;border:1px solid rgba(255,255,255,.12);box-shadow:0 4px 16px #0006}.interactive-footer{display:flex;align-items:center;justify-content:space-between;padding-top:12px}.step-dots{display:flex;gap:6px}.step-dot{width:8px;height:8px;border-radius:50%;background:var(--surface-hover);border:1px solid var(--border);transition:all .3s ease}.step-dot.active{background:var(--accent);border-color:var(--accent);box-shadow:0 0 8px var(--accent-glow)}.step-dot.done{background:#0ea5e94d;border-color:#0ea5e966}.interactive-nav-hint{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-dim)}.nav-back{display:flex;align-items:center;cursor:pointer;color:var(--text-dim);transition:color .2s}.nav-back:hover{color:var(--text-secondary)}.nav-back .material-icons-round{font-size:16px}.twist-label{color:var(--accent);font-weight:600}.slide-nav{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 0 8px}.slide-nav-arrow{background:none;border:1px solid var(--border);border-radius:8px;color:var(--text-dim);cursor:pointer;padding:6px;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}.slide-nav-arrow:hover:not(:disabled){background:var(--surface-hover);color:var(--text)}.slide-nav-arrow:disabled{opacity:.2;cursor:default}.slide-nav-arrow .material-icons-round{font-size:18px}.slide-dots{display:flex;align-items:center;gap:6px}.slide-dot{width:10px;height:10px;border-radius:50%;background:var(--surface);border:1.5px solid var(--border);cursor:pointer;padding:0;position:relative;display:flex;align-items:center;justify-content:center;transition:all .2s}.slide-dot.visited{background:var(--text-dim);border-color:var(--text-dim)}.slide-dot.active{background:var(--accent);border-color:var(--accent);box-shadow:0 0 8px var(--accent-glow);transform:scale(1.2)}.slide-dot:hover:not(.active){border-color:var(--text-secondary);transform:scale(1.1)}.dot-video-icon{font-size:8px!important;position:absolute}.slide-dot.active .dot-video-icon{color:#fff}.guided-path-svg{position:absolute;top:0;inset-inline-start:0;pointer-events:none;overflow:visible}.guided-path-static{fill:none;stroke:var(--accent);stroke-width:2;opacity:.35}.guided-path-glow{fill:none;stroke:var(--accent);stroke-width:2;filter:drop-shadow(0 0 6px var(--accent-glow));opacity:.6}.story-bar{position:fixed;top:0;inset-inline-start:0;inset-inline-end:0;z-index:100;background:#111113f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.06)}.story-bar.no-strip .story-bar-top{padding:14px 24px}.story-bar-top{display:flex;align-items:center;justify-content:space-between;padding:10px 24px 0}.story-bar-breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px}.story-bar-course{color:#999;font-weight:600;font-size:13px;letter-spacing:.3px;cursor:pointer;transition:color .2s}.story-bar-course:hover{color:#ccc}.story-bar-sep{color:#333;font-size:10px}.story-bar-session{color:var(--story-accent, var(--accent));font-weight:600;font-size:12px;cursor:pointer;transition:color .2s}.story-bar-session:hover{filter:brightness(1.2)}.story-bar-right{display:flex;align-items:center;gap:8px}.story-bar-lang{font-size:11px;color:#555;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:6px;padding:4px 10px;cursor:pointer;font-family:Inter,Heebo,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;transition:background .2s,color .2s}.story-bar-lang:hover{background:#ffffff14;color:#999}.story-bar-admin-btn{display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:#eab3081f;border:1px solid rgba(234,179,8,.3);border-radius:8px;color:#eab308;cursor:pointer;transition:background .2s,border-color .2s}.story-bar-admin-btn:hover{background:#eab30838;border-color:#eab30880}.story-bar-payment-btn{display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px;color:var(--text-secondary);cursor:pointer;transition:border-color .2s,color .2s}.story-bar-payment-btn:hover{border-color:var(--border-hover);color:var(--text)}.story-bar-strip{overflow:hidden}.story-pills{display:flex;align-items:center;padding:8px 24px 12px;overflow-x:auto;scrollbar-width:none}.story-pills::-webkit-scrollbar{display:none}.story-pill-group{display:flex;align-items:center;flex-shrink:0}.story-pill{display:flex;align-items:center;gap:8px;cursor:pointer;flex-shrink:0}.story-dot{width:8px;height:8px;border-radius:50%;background:#2a2a2d;flex-shrink:0;transition:all .3s}.story-pill.active .story-dot{width:10px;height:10px;background:var(--story-accent, var(--accent));box-shadow:0 0 8px color-mix(in srgb,var(--story-accent, var(--accent)) 40%,transparent),0 0 20px color-mix(in srgb,var(--story-accent, var(--accent)) 15%,transparent)}.story-pill.completed .story-dot{background:#4ade80}.story-label{font-size:11.5px;font-weight:400;color:#4a4a4f;white-space:nowrap;transition:all .2s;padding:4px 10px;border-radius:6px}.story-pill:hover .story-label{color:#999;background:#ffffff08}.story-pill.active .story-label{color:#fff;font-weight:600;background:color-mix(in srgb,var(--story-accent, var(--accent)) 10%,transparent)}.story-pill.completed .story-label{color:#6a6a6f}.story-connector{width:28px;height:2px;background:#1e1e21;flex-shrink:0}.story-connector.done{background:linear-gradient(90deg,#4ade80,#333)}.story-connector.active-trail{background:linear-gradient(90deg,#4ade80,var(--story-accent, var(--accent)))}.keyboard-hints{position:fixed;bottom:16px;inset-inline-end:24px;z-index:100;display:flex;gap:16px;font-size:11px;color:var(--text-dim);opacity:.6}.keyboard-hints .hint{display:flex;align-items:center;gap:4px}.keyboard-hints kbd{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:20px;padding:0 5px;border-radius:4px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);font-family:inherit;font-size:10px;color:var(--text-dim)}.zoom-container{width:100%;height:100%;position:relative;transform-origin:0 0}.course-title{position:fixed;bottom:20px;inset-inline-start:24px;z-index:90;font-size:12px;color:var(--text-dim);opacity:.4;letter-spacing:.05em}:fullscreen .keyboard-hints,:-webkit-full-screen .keyboard-hints{display:none}:fullscreen .course-title,:-webkit-full-screen .course-title{display:none}.slide-view-wrapper.presenting{background:var(--bg)}.presenting .slide-main{max-width:100%;padding:0 40px;justify-content:center}.presenting .slide-card{max-width:900px;border-color:#ffffff0f}.presenting .slide-card:hover{border-color:#ffffff1a}.present-zoom-wrapper{display:flex;align-items:center;justify-content:center;width:100%;transition:transform .3s ease;transform-origin:center center}.present-btn{display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--text-dim);cursor:pointer;padding:6px 10px;margin-inline-start:8px;font-family:inherit;transition:background .2s,color .2s,border-color .2s}.present-btn:hover{background:var(--surface-hover);color:var(--text);border-color:var(--border-hover)}.present-btn .material-icons-round{font-size:18px}.present-exit-btn{position:fixed;top:16px;inset-inline-end:16px;z-index:200;background:transparent;border:none;color:var(--text);cursor:pointer;padding:8px;border-radius:8px;opacity:0;transition:opacity .3s}.slide-view-wrapper.presenting:hover .present-exit-btn{opacity:.5}.present-exit-btn:hover{opacity:1!important;background:#ffffff14}.present-exit-btn .material-icons-round{font-size:24px}.session-card.locked{opacity:.55}.session-card.locked:hover{opacity:.8}.session-lock-badge{position:absolute;top:12px;inset-inline-end:12px;width:28px;height:28px;border-radius:50%;background:#f59e0b26;display:flex;align-items:center;justify-content:center}.session-lock-badge .material-icons-round{font-size:15px;color:#f59e0b}.pricing-backdrop{position:fixed;inset:0;z-index:200;background:#000000b3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center}.pricing-modal{position:relative;background:#141418f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:40px;max-width:520px;width:90%;max-height:85vh;overflow-y:auto}.pricing-close{position:absolute;top:14px;inset-inline-end:14px;background:none;border:none;color:var(--text-dim);cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center;transition:color .2s,background .2s}.pricing-close:hover{color:var(--text);background:var(--surface-hover)}.pricing-close .material-icons-round{font-size:22px}.pricing-header{text-align:center;margin-bottom:28px}.pricing-lock-icon{font-size:36px;color:#f59e0b;margin-bottom:12px}.pricing-header h2{font-size:22px;font-weight:700;color:var(--text);margin-bottom:6px}.pricing-header p{font-size:14px;color:var(--text-secondary)}.pricing-signin-prompt{text-align:center;padding:24px 0;display:flex;flex-direction:column;align-items:center;gap:16px}.pricing-signin-prompt p{font-size:14px;color:var(--text-dim)}.pricing-loading{text-align:center;padding:24px 0;color:var(--text-dim);font-size:14px}.pricing-cards{display:flex;flex-direction:column;gap:14px}.pricing-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;transition:border-color .2s}.pricing-card:hover{border-color:var(--border-hover)}.pricing-card-name{font-size:16px;font-weight:600;color:var(--text);margin-bottom:4px}.pricing-card-desc{font-size:13px;color:var(--text-secondary);margin-bottom:8px;line-height:1.4}.pricing-card-sessions{font-size:12px;color:var(--text-dim);margin-bottom:12px}.pricing-card-price{font-size:28px;font-weight:700;color:var(--text);margin-bottom:14px}.pricing-buy-btn{width:100%;padding:10px 20px;border-radius:10px;border:none;background:var(--accent);color:#fff;font-size:14px;font-weight:600;font-family:Inter,Heebo,sans-serif;cursor:pointer;transition:background .2s,transform .1s}.pricing-buy-btn:hover:not(:disabled){background:#0991d3;transform:translateY(-1px)}.pricing-buy-btn:disabled{opacity:.6;cursor:not-allowed}.present-counter{position:fixed;bottom:20px;left:50%;transform:translate(-50%);z-index:200;font-size:13px;color:var(--text-dim);letter-spacing:.05em;opacity:0;transition:opacity .3s}.slide-view-wrapper.presenting:hover .present-counter{opacity:.4}.present-zoom-btn{position:fixed;bottom:16px;inset-inline-end:24px;z-index:200;display:flex;align-items:center;gap:6px;background:transparent;border:1px solid transparent;color:var(--text-dim);cursor:pointer;padding:6px 10px;border-radius:8px;font-family:inherit;font-size:12px;opacity:0;transition:opacity .3s}.slide-view-wrapper.presenting:hover .present-zoom-btn{opacity:.4}.present-zoom-btn:hover{opacity:1!important;background:#ffffff14;border-color:var(--border)}.present-zoom-btn .material-icons-round{font-size:18px}.course-map-grid-wrapper{max-width:1100px;margin:0 auto;padding:80px 24px 100px;display:flex;flex-direction:column;gap:24px}.course-map-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.course-map-grid.mobile{grid-template-columns:1fr}.session-grid-card{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:18px;overflow:hidden;cursor:pointer;transition:border-color .2s,box-shadow .2s}.session-grid-card:hover{border-color:#ffffff29;box-shadow:0 8px 40px #0006}.session-grid-card.locked{opacity:.45}.session-grid-cover{position:relative;height:200px;overflow:hidden}.session-grid-cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.85}.session-grid-cover-num{position:absolute;top:16px;inset-inline-start:16px;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;color:#fff;z-index:2}.session-grid-ring{position:absolute;top:12px;inset-inline-end:12px;z-index:2}.session-grid-complete{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.session-grid-lock{position:absolute;bottom:12px;inset-inline-end:12px;z-index:2;background:#00000080;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center}.session-grid-lock .material-icons-round{font-size:16px;color:#f59e0b}.session-grid-content{padding:16px 20px 20px}.session-grid-title{font-size:17px;font-weight:700;color:#f1f5f9;margin:0 0 6px;line-height:1.3}.session-grid-sub{font-size:12px;color:#ffffff80;margin:0 0 12px;line-height:1.4}.session-grid-meta{display:flex;align-items:center;gap:10px;font-size:11px;color:#fff6}.session-grid-meta .material-icons-round{font-size:13px;margin-inline-end:2px}.progress-hero-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:20px 24px;display:flex;align-items:center;gap:32px;flex-wrap:wrap}.progress-hero-left{flex:1;min-width:200px;display:flex;flex-direction:column;gap:8px}.progress-hero-greeting{font-size:12px;color:#ffffff73;text-transform:uppercase;letter-spacing:.5px}.progress-hero-stat{display:flex;align-items:baseline;gap:8px}.progress-hero-number{font-size:36px;font-weight:800;background:linear-gradient(90deg,#f59e0b,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.progress-hero-label{font-size:13px;color:#ffffff80}.progress-hero-bar-wrap{width:100%}.progress-hero-bar{width:100%;height:4px;background:#ffffff14;border-radius:2px;overflow:hidden}.progress-hero-fill{height:100%;background:linear-gradient(90deg,#f59e0b,#8b5cf6,#06b6d4);border-radius:2px;transition:width .5s ease}.progress-hero-sessions{display:flex;align-items:flex-end;gap:8px;height:48px}.progress-hero-session-dot{display:flex;flex-direction:column;align-items:center;gap:4px}.dot-bar{width:8px;height:36px;background:#ffffff14;border-radius:4px;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end}.dot-fill{width:100%;border-radius:4px;transition:height .5s ease}.progress-hero-session-dot>span{font-size:9px;font-weight:600}.progress-hero-cta{background:#ffffff1a;border:1px solid rgba(255,255,255,.15);border-radius:10px;color:#fff;padding:10px 20px;cursor:pointer;font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px;transition:background .2s;white-space:nowrap}.progress-hero-cta:hover{background:#ffffff2e}.progress-hero-cta .material-icons-round{font-size:18px}.course-map-mobile{display:flex;flex-direction:column;align-items:center;padding:80px 20px 100px;gap:0}.mobile-session-item{display:flex;flex-direction:column;align-items:center}.session-card-mobile{width:100%;max-width:340px;padding:20px;position:relative}.session-card-mobile .session-number{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;margin-bottom:10px}.session-card-mobile .session-title{font-size:17px;font-weight:600;margin-bottom:4px;color:var(--text)}.session-card-mobile .session-subtitle{font-size:12px;color:var(--text-secondary);margin-bottom:10px}.session-card-mobile .session-meta{display:flex;gap:12px;font-size:11px;color:var(--text-dim)}.session-card-mobile .session-meta span{display:flex;align-items:center;gap:4px}.session-card-mobile .session-meta .material-icons-round{font-size:14px}.session-card-mobile.dimmed{opacity:.55}.mobile-session-connector{width:2px;height:32px;background:linear-gradient(180deg,var(--accent),rgba(14,165,233,.3));border-radius:1px}@media(max-width:767px){.session-view{padding:16px 16px 40px}.session-view-header .sv-title{font-size:22px}.session-view-header .sv-badge{width:38px;height:38px;font-size:16px}.blocks-timeline,.block-timeline-item{flex-direction:column;align-items:center}.block-timeline-card,.block-timeline-card.has-cover{width:100%;max-width:340px}.block-connector{padding:8px 0;justify-content:center}.block-connector-line{width:2px;height:32px;background:linear-gradient(180deg,var(--accent),rgba(14,165,233,.3))}.deep-dives-section{margin-top:24px;padding-top:20px}.deep-dives-grid{flex-direction:column}.deep-dive-chip{width:100%}.story-bar-top{padding:8px 12px 0}.story-bar.no-strip .story-bar-top{padding:10px 12px}.story-pills{padding:6px 12px 10px}.user-name{display:none!important}.slide-view-wrapper{padding-top:50px}.vocab-sidebar{width:48px}.slide-main{padding:12px 16px 16px}.slide-main.with-sidebar{max-width:100%}.slide-card{padding:20px;min-height:auto}.slide-block-title{font-size:18px}.slide-click-zone{width:20%}.keyboard-hints{display:none}.course-title{font-size:10px;inset-inline-start:12px;bottom:12px}.pricing-modal{padding:24px 20px;border-radius:16px}}.user-avatar-btn{width:32px;height:32px;border-radius:50%;background:#ffffff1a;border:1px solid rgba(255,255,255,.15);color:#fff;font-size:12px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;position:relative;transition:background .2s}.user-avatar-btn:hover{background:#ffffff2e}.user-dropdown-wrap{position:relative}.user-dropdown-panel{position:absolute;top:calc(100% + 8px);inset-inline-end:0;min-width:220px;background:#141414;border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:8px;z-index:100;box-shadow:0 16px 48px #0009}.user-dropdown-header{padding:10px 12px 12px}.user-dropdown-name{font-size:13px;font-weight:600;color:#f1f5f9}.user-dropdown-email{font-size:11px;color:#fff6;margin-top:2px}.user-dropdown-divider{height:1px;background:#ffffff14;margin:4px 0}.user-dropdown-progress{padding:10px 12px}.user-dropdown-progress-bar{height:4px;background:#ffffff14;border-radius:2px;overflow:hidden;margin-bottom:6px}.user-dropdown-progress-fill{height:100%;background:linear-gradient(90deg,#f59e0b,#8b5cf6);border-radius:2px}.user-dropdown-progress-label{font-size:11px;color:#ffffff73}.user-dropdown-btn{width:100%;padding:9px 12px;border-radius:8px;border:none;background:transparent;color:#ffffffb3;font-size:13px;cursor:pointer;display:flex;align-items:center;gap:8px;text-align:start;transition:background .15s}.user-dropdown-btn:hover{background:#ffffff0f;color:#fff}.user-dropdown-btn .material-icons-round{font-size:16px}.user-dropdown-btn.unlock{color:#f59e0b}.welcome-backdrop{position:fixed;inset:0;z-index:200;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:24px}.welcome-card{max-width:540px;width:100%;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:48px 40px}.welcome-label{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:#ffffff73;margin-bottom:16px}.welcome-h1{font-size:32px;font-weight:800;color:#f1f5f9;line-height:1.2;margin:0 0 8px}.welcome-sub{font-size:15px;color:#ffffff8c;margin:0 0 32px}.welcome-bullets{list-style:none;padding:0;margin:0 0 36px;display:flex;flex-direction:column;gap:14px}.welcome-bullet{display:flex;align-items:center;gap:10px;font-size:14px;color:#ffffffb3}.welcome-bullet-icon{color:#f59e0b;font-size:12px}.welcome-role{display:inline-block;background:linear-gradient(90deg,#f59e0b,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:600}.welcome-role-wrapper{display:inline-block;overflow:hidden;height:1.2em;vertical-align:bottom}.welcome-cta{width:100%;padding:14px 24px;background:linear-gradient(90deg,#f59e0b,#8b5cf6);border:none;border-radius:12px;color:#fff;font-size:15px;font-weight:700;cursor:pointer;margin-bottom:16px;transition:opacity .2s}.welcome-cta:hover{opacity:.9}.welcome-signin{text-align:center;font-size:13px;color:#fff6}.welcome-signin span{color:#ffffffb3;cursor:pointer;text-decoration:underline}[dir=rtl] .slide-click-zone.left:hover{background:linear-gradient(to left,rgba(255,255,255,.02),transparent)}[dir=rtl] .slide-click-zone.right:hover{background:linear-gradient(to right,rgba(255,255,255,.02),transparent)}[dir=rtl] .block-connector-line{background:linear-gradient(270deg,var(--accent),rgba(14,165,233,.3))}[dir=rtl] .story-connector.done{background:linear-gradient(270deg,#4ade80,#333)}[dir=rtl] .story-connector.active-trail{background:linear-gradient(270deg,#4ade80,var(--story-accent, var(--accent)))}[dir=rtl] .progress-hero-fill{background:linear-gradient(270deg,#f59e0b,#8b5cf6,#06b6d4)}[dir=rtl] .user-dropdown-progress-fill,[dir=rtl] .welcome-cta{background:linear-gradient(270deg,#f59e0b,#8b5cf6)}[dir=rtl] .welcome-role,[dir=rtl] .progress-hero-number{background:linear-gradient(270deg,#f59e0b,#8b5cf6);-webkit-background-clip:text;background-clip:text}
