:root{--primary: #0f766e;--primary-dark: #115e59;--accent: #f59e0b;--bg: #f4f7f6;--card-bg: #ffffff;--border: #e2e8f0;--text: #1f2937;--muted: #6b7280;--danger: #dc2626;--success: #16a34a;--warning: #d97706;--info: #2563eb;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);direction:rtl}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}.app-loading{height:100vh;display:flex;align-items:center;justify-content:center}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);padding:20px}.auth-card{background:var(--card-bg);border-radius:16px;padding:32px;max-width:440px;width:100%;box-shadow:0 20px 60px #00000040}.auth-logo{font-size:48px;text-align:center}.auth-title{text-align:center;font-size:20px;margin:8px 0 24px;color:var(--primary-dark)}.auth-tabs{display:flex;gap:8px;margin-bottom:16px}.tab{border:none;background:transparent;padding:8px 16px;border-radius:8px;color:var(--muted);font-weight:600;flex:1}.tab.active{background:var(--primary);color:#fff}.sub-tabs{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.sub-tabs .tab{flex:none}.form{display:flex;flex-direction:column;gap:14px}.form label{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:600;color:var(--text)}.form input,.form select,.form textarea{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}.form-grid .full{grid-column:1 / -1}.form-inline{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.form-inline input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;flex:1;min-width:160px}.checkbox-row{flex-direction:row!important;align-items:center;gap:8px!important}.checkbox-row input{width:auto}.form-actions{display:flex;gap:10px;margin-top:4px}.hint{font-size:13px;color:var(--muted)}.btn{border:1px solid var(--border);background:#fff;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;color:var(--text)}.btn:hover{background:#f1f5f9}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:#fff;color:var(--danger);border-color:var(--danger)}.btn-danger:hover{background:#fef2f2}.btn-success{background:#fff;color:var(--success);border-color:var(--success)}.btn-success:hover{background:#f0fdf4}.btn-small{padding:6px 12px;font-size:13px}.btn:disabled{opacity:.6;cursor:not-allowed}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#e2e8f0;color:#334155}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.error-box{background:#fee2e2;color:#991b1b;padding:10px 14px;border-radius:8px;margin-bottom:10px;font-size:14px}.success-box{background:#dcfce7;color:#166534;padding:10px 14px;border-radius:8px;margin-bottom:10px;font-size:14px}.spinner{width:20px;height:20px;border:3px solid rgba(15,118,110,.2);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--primary-dark);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;flex-wrap:wrap;gap:12px}.app-header-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px}.header-logo-badge{width:34px;height:34px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-sizing:border-box;padding:3px}.header-logo-img{width:100%;height:100%;object-fit:contain}.app-header-nav{display:flex;gap:8px}.app-header-nav .tab{color:#fffc;white-space:nowrap}.app-header-nav .tab.active{background:#fff3;color:#fff}.app-header-user{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.app-header-user-row{display:flex;align-items:center;gap:10px}.app-header-user .btn{background:transparent;color:#fff;border-color:#fff6}.app-header-user .btn:hover{background:#ffffff26}.copyright-mark{font-size:10px;opacity:.65;letter-spacing:.2px}.auth-copyright{text-align:center;margin-top:16px;color:var(--muted)}.header-copyright{color:#ffffffb3}.app-main{flex:1;padding:24px;max-width:1100px;margin:0 auto;width:100%}.panel{background:var(--card-bg);border-radius:12px;padding:24px;box-shadow:0 1px 3px #00000014}.panel-sub{margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}.toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:10px}.toolbar label{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600}.toolbar select{padding:6px 10px;border-radius:8px;border:1px solid var(--border)}.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:6px 0}.muted{color:var(--muted);font-size:13px}.description{color:var(--text);line-height:1.7}.lecture-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.lecture-card{background:#fafafa;border:1px solid var(--border);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}.lecture-card-body{padding:14px;cursor:pointer;flex:1}.lecture-card-body h3{margin:0 0 6px;font-size:16px}.lecture-card-actions{display:flex;gap:6px;padding:10px 14px;border-top:1px solid var(--border);flex-wrap:wrap}.lecture-card-with-extra{display:flex;flex-direction:column;gap:6px}.video-wrap{position:relative;padding-top:56.25%;margin:16px 0;border-radius:10px;overflow:hidden;background:#000}.video-wrap iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-wrap video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0;background:#000}.extra-links{padding-inline-start:20px}.quiz-box{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border)}.question-card{background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:14px;margin:10px 0}.options-list{display:flex;flex-direction:column;gap:6px;margin-top:8px}.option-row{display:flex;align-items:center;gap:8px;font-size:14px}.option-row.correct-answer{color:var(--success);font-weight:700}.quiz-result{padding:16px;border-radius:10px;margin-top:16px;text-align:center}.quiz-result.pass{background:#dcfce7;color:#166534}.quiz-result.fail{background:#fee2e2;color:#991b1b}.links-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.link-row{display:flex;gap:8px;margin-bottom:6px}.link-row input{flex:1;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.feedback-item{padding:10px 0;border-bottom:1px solid var(--border)}.data-table{width:100%;border-collapse:collapse;font-size:14px}.data-table th,.data-table td{padding:10px;border-bottom:1px solid var(--border);text-align:right}.simple-list{padding-inline-start:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}.stat-card{background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:16px;text-align:center}.stat-value{font-size:26px;font-weight:800;color:var(--primary-dark)}.stat-label{font-size:13px;color:var(--muted);margin-top:4px}.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.file-btn{display:inline-flex!important;flex-direction:row!important;align-items:center;cursor:pointer}.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:10px}.table-wrap .data-table th{background:#f8fafc;white-space:nowrap;position:sticky;top:0}.table-wrap .data-table td{white-space:nowrap}.report-toolbar{align-items:flex-end}.report-filters,.report-actions{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}.report-filters label{flex-direction:column;align-items:flex-start;gap:4px;font-size:13px}.report-filters input{padding:6px 10px;border:1px solid var(--border);border-radius:8px;font-family:inherit}.slides-editor,.short-quiz-section{border:1px dashed var(--border);border-radius:10px;padding:14px;background:#fbfdfc}.slides-editor-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:8px 0}.slides-editor-row select{padding:6px 10px;border:1px solid var(--border);border-radius:8px}.narration-list{padding-inline-start:22px;display:flex;flex-direction:column;gap:10px;margin-top:10px}.narration-list li strong{display:block;font-size:13px;margin-bottom:4px}.narration-list textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px;line-height:1.6}.short-quiz-builder .option-row input[type=text],.short-quiz-builder .option-row input:not([type]){flex:1}.section-title{font-size:17px;margin:20px 0 10px;color:var(--primary-dark)}.slide-player{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.slide-stage{position:relative;padding-top:56.25%;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#0f766e,#115e59 55%,#134e4a);box-shadow:0 6px 20px #0f766e40}.slide-card{position:absolute;top:0;right:0;bottom:0;left:0;padding:5% 6%;color:#fff;display:flex;flex-direction:column;overflow-y:auto}.slide-card.ltr{text-align:left}.slide-title{font-size:clamp(18px,3.2vw,30px);margin:0 0 14px;line-height:1.35;border-bottom:3px solid var(--accent);padding-bottom:10px}.slide-bullets{margin:0;padding-inline-start:1.2em;font-size:clamp(14px,2vw,20px);line-height:1.7}.slide-bullets li::marker{color:var(--accent)}.slide-number{margin-top:auto;align-self:flex-end;font-size:12px;opacity:.75;padding-top:8px}.slide-progress{height:5px;background:var(--border);border-radius:999px;overflow:hidden}.slide-progress-bar{height:100%;background:var(--primary);transition:width .3s ease}.slide-controls{display:flex;gap:8px;align-items:center;justify-content:space-between}.slide-controls .slide-play{flex:1;max-width:320px}.quiz-locked{margin-top:20px;padding:14px;border-radius:10px;background:#f8fafc;border:1px dashed var(--border)}.content-block{margin:18px 0;padding-top:4px}.content-block-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.content-block-head .section-title{margin:10px 0 6px}.content-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:8px}.content-done-tag{color:var(--success);font-weight:700;font-size:13px}.ppt-wrap{background:#f1f5f9}.content-checklist{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:6px;font-size:14px}.content-checklist li.done{color:var(--success)}@media (max-width: 640px){.form-grid,.form-row-2{grid-template-columns:1fr}.form input,.form select,.form textarea,.form-inline input,.toolbar select,.report-filters input,.link-row input{font-size:16px}.auth-shell{padding:12px;align-items:flex-start}.auth-card{padding:20px 16px;border-radius:12px}.auth-title{font-size:17px}.app-header{flex-direction:column;align-items:stretch;padding:10px 14px;gap:8px}.app-header-title{font-size:14px;line-height:1.4}.app-header-nav{order:3}.app-header-nav .tab{flex:1}.app-header-user{align-items:flex-start}.app-header-user-row{width:100%;flex-wrap:wrap;gap:8px}.app-header-username{font-size:13px}.app-header-user .btn{margin-inline-start:auto}.app-main{padding:12px}.panel{padding:14px;border-radius:10px}.panel h2{font-size:19px}.sub-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}.sub-tabs .tab{white-space:nowrap}.toolbar label{flex-direction:column;align-items:stretch;width:100%}.lecture-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}.stat-value{font-size:22px}.link-row{flex-wrap:wrap}.link-row input{min-width:0;flex-basis:100%}.form-actions{flex-direction:column-reverse}.form-actions .btn{width:100%}.btn{min-height:40px}.btn-small{min-height:34px}.slide-stage{padding-top:0;min-height:62vw}.slide-card{position:relative;min-height:62vw;padding:18px 16px}.slide-controls .btn-small{padding:6px 8px}.report-filters,.report-actions{width:100%}.report-filters label{flex:1}.data-table{font-size:13px}.data-table th,.data-table td{padding:8px}}.posttest-card{margin:22px 0 14px;border:2px solid var(--primary);border-radius:14px;background:#f0fdfa;padding:14px}.posttest-card.is-locked{border-color:var(--border);border-style:dashed;background:#f8fafc}.posttest-card.is-done{border-color:var(--success);background:#f0fdf4}.posttest-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}.posttest-icon{flex:0 0 auto;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;font-size:1.6rem;background:#fff;box-shadow:0 1px 4px #0000001f}.posttest-title{flex:1 1 auto;display:flex;flex-direction:column;gap:2px}.posttest-title strong{font-size:1.1rem;color:var(--primary-dark)}.posttest-sub{color:var(--muted);font-size:.9rem}.posttest-card .quiz-box{margin-top:8px}.feedback-locked{margin:12px 0;padding:12px 14px;border-radius:10px;background:#f8fafc;border:1px dashed var(--border);color:var(--muted)}.certificate-card{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:14px 0;padding:14px;border-radius:14px;border:2px solid var(--accent);background:#fffbeb}.certificate-icon{font-size:2rem;width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:#fff;box-shadow:0 1px 4px #0000001f}.certificate-text{flex:1 1 200px;display:flex;flex-direction:column;gap:2px}.certificate-text strong{font-size:1.1rem;color:#92400e}.certificate-text span{color:var(--muted);font-size:.9rem}.notice-box{margin:10px 0 14px;padding:12px 14px;border-radius:10px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a}@media (max-width: 600px){.certificate-card .btn{width:100%}}.program-list{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:8px}.program-item{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff}.program-item.editing{background:#f0fdfa;border-color:var(--primary)}.program-item.editing form{flex:1 1 100%}.program-actions{display:flex;gap:6px}.quiz-generator{margin:8px 0 12px}.btn-ai{background:linear-gradient(135deg,#7c3aed,#0f766e);color:#fff;border:0}.btn-ai:hover{filter:brightness(1.08)}.quiz-generator-box{border:1px dashed #a78bfa;background:#faf5ff;border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:8px}.gen-sources{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.file-btn{cursor:pointer;display:inline-flex;align-items:center;gap:4px}.retake-note{margin:6px 0 0;padding:8px 12px;border-radius:8px;background:#fffbeb;border:1px solid #fcd34d;color:#92400e;font-weight:600}.quiz-result .btn{margin-top:6px}