:root{--navy:#111827;--navy2:#1f2937;--blue:#2563eb;--green:#22c55e;--orange:#f97316;--purple:#8b5cf6;--red:#ef4444;--yellow:#eab308;--bg:#f3f4f6;--ink:#182033;--muted:#64748b;--line:#e5e7eb}
*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;margin:0}.app-layout{min-height:100vh}.sidebar{background:linear-gradient(180deg,var(--navy),#0f172a);bottom:0;color:#cbd5e1;display:flex;flex-direction:column;left:0;padding:18px 14px;position:fixed;top:0;width:238px;z-index:1040}.sidebar-brand{align-items:center;color:#fff;display:flex;font-size:15px;font-weight:800;gap:11px;letter-spacing:-.15px;line-height:1.05;padding:5px 8px 24px;text-decoration:none}.brand-mark{align-items:center;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:12px;display:flex;height:42px;justify-content:center;width:42px}.sidebar-menu{display:grid;gap:5px}.sidebar-link{align-items:center;border-radius:11px;color:#9ca3af;display:flex;font-size:14px;font-weight:650;gap:12px;padding:11px 12px;text-decoration:none;transition:.2s}.sidebar-link i{font-size:16px;width:18px}.sidebar-link:hover{background:#1f2937;color:#fff}.sidebar-link.active{background:linear-gradient(100deg,#2563eb,#4f46e5);box-shadow:0 8px 18px rgba(37,99,235,.24);color:#fff}.sidebar-footer{border-top:1px solid rgba(255,255,255,.08);color:#64748b;margin-top:auto;padding:15px 8px 0}.main-shell{margin-left:238px;min-height:100vh}.topbar{align-items:center;background:#fff;border-bottom:1px solid var(--line);display:flex;height:70px;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:1020}.topbar strong{display:block;font-size:16px}.topbar small{color:var(--muted)}.topbar-user{align-items:center;display:flex;font-size:14px;font-weight:650;gap:10px}.user-badge{align-items:center;background:#eff6ff;border-radius:50%;color:var(--blue);display:flex;font-weight:800;height:36px;justify-content:center;width:36px}.mobile-menu-btn{background:#eff6ff;border:0;border-radius:9px;color:var(--blue);display:none;font-size:21px;height:40px;margin-right:10px;width:40px}.content-wrapper{margin:auto;max-width:1600px;padding:26px}.page-heading{margin-bottom:18px}.page-heading h1{font-size:26px;font-weight:800;letter-spacing:-.7px;margin:0}.page-heading p{color:var(--muted);margin:4px 0 0}.card,.premium-card,.panel-card{background:#fff;border:0;border-radius:16px;box-shadow:0 10px 28px rgba(15,23,42,.055);transition:.22s}.card:hover,.panel-card:hover{box-shadow:0 14px 34px rgba(15,23,42,.085)}.stat-card{min-height:145px;overflow:hidden;padding:20px;position:relative}.stat-card:before{content:"";height:6px;left:0;position:absolute;right:0;top:0}.stat-card-blue:before{background:var(--blue)}.stat-card-red:before{background:var(--red)}.stat-card-green:before{background:var(--green)}.stat-card-purple:before{background:var(--purple)}.stat-card-orange:before{background:var(--orange)}.stat-card:hover{transform:translateY(-4px)}.stat-label{color:var(--muted);font-size:14px;font-weight:700}.stat-number{color:var(--ink);display:block;font-size:42px;font-weight:850;letter-spacing:-2px;margin-top:12px}.stat-note{color:#94a3b8;font-size:12px}.section-title{font-size:18px;font-weight:800;letter-spacing:-.3px;margin:0 0 13px}.grade-card,.lesson-card{border-radius:15px;color:#fff;min-height:142px;padding:17px}.grade-card h3,.lesson-card h3{font-size:15px;font-weight:750;margin:0}.grade-card strong,.lesson-card strong{display:block;font-size:30px;letter-spacing:-1px;margin:10px 0 3px}.grade-card small,.lesson-card small{color:rgba(255,255,255,.82)}.theme-blue{background:linear-gradient(135deg,#2563eb,#3b82f6)}.theme-red{background:linear-gradient(135deg,#e11d48,#fb7185)}.theme-green{background:linear-gradient(135deg,#16a34a,#4ade80)}.theme-purple{background:linear-gradient(135deg,#7c3aed,#a78bfa)}.theme-orange{background:linear-gradient(135deg,#ea580c,#fb923c)}.theme-yellow{background:linear-gradient(135deg,#ca8a04,#facc15)}.progress{background:rgba(255,255,255,.25);border-radius:99px;height:6px}.progress-bar{background:rgba(255,255,255,.88)}.lesson-grid{display:grid;gap:13px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.week-grid{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(116px,1fr))}.week-chip{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px}.week-chip.filled{background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}.week-chip strong{display:block;font-size:12px}.week-chip small{font-size:11px}.choice-grid{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));margin-bottom:7px}.choice-card{background:#fff;border:1px solid #dbe3ee;border-radius:11px;cursor:pointer;font-size:14px;font-weight:650;padding:10px;transition:.18s}.choice-card:hover{border-color:#93c5fd;box-shadow:0 5px 14px rgba(37,99,235,.1)}.choice-card.selected{background:var(--blue);border-color:var(--blue);color:#fff}.choice-card input{accent-color:var(--blue);margin-right:5px}.form-control,.form-select{border-color:#dbe3ee;border-radius:10px;padding:.68rem .78rem}.form-control:focus,.form-select:focus{border-color:#93c5fd;box-shadow:0 0 0 .2rem rgba(37,99,235,.11)}.form-label{font-size:14px;font-weight:750}.btn{border-radius:9px;font-weight:700;transition:.18s}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--blue);border-color:var(--blue);box-shadow:0 6px 14px rgba(37,99,235,.18)}.soft-btn,.btn-primary-soft{background:#eff6ff;color:#1d4ed8}.btn-success-soft{background:#f0fdf4;color:#15803d}.btn-danger-soft{background:#fef2f2;color:#dc2626}.btn-warning-soft{background:#fefce8;color:#a16207}.upload-check,.option-row label{background:#f8fafc;border:1px solid var(--line);border-radius:11px;padding:10px}.option-row{display:flex;flex-wrap:wrap;gap:8px}.app-values-card{background:#f8fafc;border:1px solid #dbeafe;border-radius:14px;padding:16px}.table{font-size:13px;margin-bottom:0}.table thead th{background:#f8fafc;border-bottom:1px solid var(--line);color:#64748b;font-size:11px;letter-spacing:.055em;padding:12px;text-transform:uppercase}.table td{border-color:#eef2f7;padding:11px 12px;vertical-align:middle}.table tbody tr:hover{background:#f8fbff}.question-text{max-width:370px;min-width:260px;white-space:normal}.empty-state{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:12px;color:#64748b;padding:16px}.info-strip{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:12px}.alert{border:0;border-radius:12px}.sidebar-overlay{display:none}
.test-builder-form{display:block}.form-section{background:#fff;border:1px solid #e8edf5;border-radius:16px;box-shadow:0 8px 22px rgba(15,23,42,.045);padding:18px}.form-section-title{font-size:17px;font-weight:800;letter-spacing:-.25px;margin:0}.form-section-note{color:var(--muted);font-size:13px;margin:4px 0 14px}.form-section .choice-grid{margin-bottom:0}
.question-image-card{background:#f8fafc;border:1px solid #dbeafe;border-radius:15px;padding:16px}.question-image-preview{align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;display:flex;gap:14px;padding:10px}.question-image-preview img{border-radius:9px;height:108px;object-fit:cover;width:150px}.question-image-preview small{color:var(--muted);display:block;margin-top:3px}.image-status{align-items:center;display:flex;gap:7px;min-width:100px}.image-status img,.question-table-thumb{border-radius:6px;height:42px;object-fit:cover;width:58px}.image-status span{color:#15803d;font-size:12px;font-weight:750}
.image-meta{display:flex;flex-wrap:wrap;gap:5px 11px;margin-top:7px}.image-meta span{background:#eff6ff;border-radius:99px;color:#1d4ed8;font-size:11px;font-weight:750;padding:3px 7px}
.ai-image-card{background:linear-gradient(135deg,#f5f3ff,#eff6ff);border-color:#c4b5fd}.ai-loading-note{color:#6d28d9;display:none;font-size:13px;font-weight:750;margin-left:10px}.ai-loading-note.show{display:inline-block}
.test-summary-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(145px,1fr))}.test-summary-grid strong{color:var(--muted);display:block;font-size:11px;letter-spacing:.05em;text-transform:uppercase}.test-summary-grid span{display:block;font-size:14px;font-weight:750;margin-top:3px}.question-card-list{display:grid;gap:14px;margin-bottom:16px}.question-card{background:#fff;border:1px solid #e5eaf2;border-radius:16px;box-shadow:0 8px 22px rgba(15,23,42,.05);overflow:hidden}.question-card.has-error{border-color:#fca5a5;box-shadow:0 8px 22px rgba(239,68,68,.1)}.question-card-header{align-items:center;background:#f8fafc;border-bottom:1px solid #e8edf5;display:flex;flex-wrap:wrap;gap:9px 16px;padding:12px 16px}.question-card-header strong{color:#1d4ed8}.question-card-header span{color:#64748b;font-size:13px}.question-error{background:#fef2f2;color:#b91c1c;font-size:13px;font-weight:800;padding:9px 16px}.question-card-body{display:grid;gap:16px;grid-template-columns:minmax(0,1fr) 170px;padding:16px}.question-card .question-text{font-size:16px;font-weight:750;line-height:1.5;max-width:none;min-width:0;white-space:normal}.option-list{display:grid;gap:7px;margin-top:14px}.option-item{align-items:flex-start;background:#f8fafc;border:1px solid #e5eaf2;border-radius:10px;display:flex;gap:8px;padding:9px 11px}.option-item strong{color:#475569}.option-item span{line-height:1.42}.option-item em{background:#e2e8f0;border-radius:99px;color:#475569;font-size:11px;font-style:normal;font-weight:800;margin-left:auto;padding:3px 7px;white-space:nowrap}.option-item.correct{background:#f0fdf4;border-color:#86efac}.option-item.correct strong{color:#15803d}.option-item.hidden{background:#fff7ed;border-color:#fdba74}.answer-summary{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;color:#1e3a8a;margin-top:13px;padding:10px}.question-image-box{align-items:center;background:#f8fafc;border:1px dashed #cbd5e1;border-radius:12px;color:#94a3b8;display:flex;font-size:13px;justify-content:center;min-height:120px;padding:7px;text-align:center}.question-image-box img{border-radius:8px;max-height:180px;max-width:100%;object-fit:contain}
.danger-zone{background:#fffafa;border:1px solid #fecaca}
@media(max-width:991px){.sidebar{transform:translateX(-105%);transition:.25s}.sidebar.open{transform:translateX(0)}.main-shell{margin-left:0}.mobile-menu-btn{align-items:center;display:flex;justify-content:center}.topbar{padding:0 15px}.topbar-user span:not(.user-badge){display:none}.content-wrapper{padding:18px 13px}.sidebar-overlay.show{background:rgba(15,23,42,.5);display:block;inset:0;position:fixed;z-index:1030}}
.question-image-box{flex-direction:column;gap:7px}.question-image-url{color:#2563eb;font-size:11px;max-width:100%;overflow-wrap:anywhere;text-align:left}
@media(max-width:576px){.stat-card{min-height:125px;padding:15px}.stat-number{font-size:34px}.page-heading h1{font-size:22px}.topbar{height:62px}.lesson-grid{grid-template-columns:1fr 1fr}.week-grid{grid-template-columns:repeat(3,1fr)}.question-card-body{grid-template-columns:1fr}.question-image-box{min-height:84px}.option-item{flex-wrap:wrap}.option-item em{margin-left:0}}