:root{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-tertiary:#f1f5f9;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--border-strong:#cbd5e1;--primary:#3b82f6;--primary-dark:#1e40af;--primary-light:#dbeafe;--success:#10b981;--success-light:#d1fae5;--warning:#f59e0b;--warning-light:#fef3c7;--danger:#ef4444;--danger-light:#fee2e2;--info:#06b6d4;--info-light:#cffafe;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow:0 1px 3px rgba(0,0,0,0.1),0 1px 2px rgba(0,0,0,0.06);--shadow-md:0 4px 6px rgba(0,0,0,0.07),0 2px 4px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px rgba(0,0,0,0.1),0 4px 6px rgba(0,0,0,0.05);--radius-sm:6px;--radius:10px;--radius-lg:16px;--transition:all 0.2s ease}[data-theme="dark"]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--text-primary:#f1f5f9;--text-secondary:#cbd5e1;--text-muted:#64748b;--border:#334155;--border-strong:#475569;--primary:#60a5fa;--primary-dark:#93c5fd;--primary-light:#1e3a8a;--success-light:#064e3b;--warning-light:#78350f;--danger-light:#7f1d1d;--info-light:#155e75}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Sarabun','Segoe UI',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background 0.3s,color 0.3s}h1,h2,h3,h4{color:var(--text-primary);font-weight:700;line-height:1.3}h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.1rem}p{color:var(--text-secondary)}small,.text-muted{color:var(--text-muted);font-size:0.85rem}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1e3a8a 0%,#3b82f6 50%,#06b6d4 100%);padding:20px;position:relative;overflow:hidden}.login-page::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,0.1) 1px,transparent 1px);background-size:30px 30px;animation:drift 30s linear infinite}@keyframes drift{from{transform:translate(0,0)}to{transform:translate(30px,30px)}}.login-container{width:100%;max-width:420px;position:relative;z-index:1}.login-card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:40px 32px;box-shadow:var(--shadow-lg);border:1px solid var(--border);animation:slideUp 0.5s ease}@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-header{text-align:center;margin-bottom:32px}.login-header h1{font-size:1.75rem;color:var(--primary-dark);margin-bottom:8px}.login-header p{color:var(--text-secondary);font-size:0.95rem}.login-icon{width:64px;height:64px;background:linear-gradient(135deg,var(--primary),var(--info));border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:32px;color:white;box-shadow:var(--shadow-md)}.form-group{margin-bottom:18px}.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--text-primary);font-size:0.9rem}.form-control{width:100%;padding:12px 14px;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:0.95rem;font-family:inherit;background:var(--bg-secondary);color:var(--text-primary);transition:var(--transition)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,130,246,0.15)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border:2px solid transparent;border-radius:var(--radius-sm);font-family:inherit;font-size:0.9rem;font-weight:600;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1.2;user-select:none}.btn:active{transform:scale(0.97)}.btn:disabled{opacity:0.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:white;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-dark);border-color:var(--primary-dark);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-strong)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--primary)}.btn-success{background:var(--success);color:white;border-color:var(--success)}.btn-danger{background:var(--danger);color:white;border-color:var(--danger)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-tertiary);color:var(--text-primary)}.btn-block{width:100%}.btn-sm{padding:6px 12px;font-size:0.8rem}.btn-lg{padding:14px 24px;font-size:1rem}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);transition:var(--transition)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-header{padding:14px 20px;border-bottom:1px solid var(--border);font-weight:700;display:flex;justify-content:space-between;align-items:center}.card-body{padding:20px}.card-title{font-size:1rem;font-weight:700;color:var(--text-primary)}.dashboard{min-height:100vh;padding-bottom:40px}.dashboard-header{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);color:white;padding:20px 24px;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100}.dashboard-header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.dashboard-header h1{color:white;font-size:1.3rem}.dashboard-header p{color:rgba(255,255,255,0.85);font-size:0.85rem;margin-top:2px}.user-info{display:flex;align-items:center;gap:12px}.user-avatar{width:40px;height:40px;background:rgba(255,255,255,0.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-weight:700}.user-name{font-weight:600}.user-role{font-size:0.8rem;opacity:0.85}.theme-toggle{background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.25);color:white;padding:8px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);font-size:1.1rem}.theme-toggle:hover{background:rgba(255,255,255,0.25)}.main-container{max-width:1280px;margin:24px auto;padding:0 20px}.quick-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:24px}.quick-link{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:20px 16px;text-align:center;text-decoration:none;color:var(--text-primary);transition:var(--transition);cursor:pointer}.quick-link:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary);color:var(--primary)}.quick-link .icon{font-size:2rem;margin-bottom:8px;display:block;color:var(--primary)}.quick-link .label{font-weight:600;font-size:0.9rem}.quick-link .count{color:var(--text-muted);font-size:0.8rem;margin-top:2px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:24px}.stat-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center}.stat-num{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.1}.stat-label{color:var(--text-secondary);font-size:0.85rem;margin-top:4px}.stat-card.success .stat-num{color:var(--success)}.stat-card.warning .stat-num{color:var(--warning)}.stat-card.danger .stat-num{color:var(--danger)}.table-wrap{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:0.9rem}.table th{background:var(--bg-tertiary);font-weight:700;color:var(--text-primary);font-size:0.8rem;text-transform:uppercase;letter-spacing:0.5px}.table tbody tr{transition:var(--transition)}.table tbody tr:hover{background:var(--bg-tertiary)}.table tbody tr:last-child td{border-bottom:none}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.alert{padding:12px 16px;border-radius:var(--radius-sm);border:1px solid;margin-bottom:16px;font-size:0.9rem;display:flex;align-items:center;gap:8px}.alert-success{background:var(--success-light);border-color:var(--success);color:var(--success)}.alert-error{background:var(--danger-light);border-color:var(--danger);color:var(--danger)}.alert-warning{background:var(--warning-light);border-color:var(--warning);color:var(--warning)}.alert-info{background:var(--info-light);border-color:var(--info);color:var(--info)}.toast-container{position:fixed;top:80px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{background:var(--bg-secondary);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius-sm);padding:12px 18px;min-width:240px;box-shadow:var(--shadow-lg);animation:slideIn 0.3s ease;display:flex;align-items:center;gap:8px}.toast.success{border-left-color:var(--success)}.toast.error{border-left-color:var(--danger)}.toast.warning{border-left-color:var(--warning)}@keyframes slideIn{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}@keyframes slideOut{to{opacity:0;transform:translateX(100%)}}.toast.removing{animation:slideOut 0.3s ease forwards}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--border) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm);height:16px}@keyframes shimmer{from{background-position:200% 0}to{background-position:-200% 0}}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:0.75rem;font-weight:600;background:var(--bg-tertiary);color:var(--text-secondary)}.badge-primary{background:var(--primary-light);color:var(--primary-dark)}.badge-success{background:var(--success-light);color:var(--success)}.badge-warning{background:var(--warning-light);color:var(--warning)}.badge-danger{background:var(--danger-light);color:var(--danger)}@media (max-width:768px){.dashboard-header{padding:14px 16px}.dashboard-header h1{font-size:1.1rem}.main-container{padding:0 12px;margin:16px auto}.quick-links{grid-template-columns:repeat(2,1fr);gap:10px}.quick-link{padding:14px 8px}.quick-link .icon{font-size:1.5rem}.quick-link .label{font-size:0.8rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.table-wrap{background:transparent;border:none;box-shadow:none}.table thead{display:none}.table,.table tbody,.table tr,.table td{display:block;width:100%}.table tr{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;padding:12px}.table td{border:none;padding:6px 0;display:flex;justify-content:space-between}.table td::before{content:attr(data-label);font-weight:600;color:var(--text-muted);font-size:0.8rem}.form-row{grid-template-columns:1fr}.toast-container{right:10px;left:10px;top:70px}.toast{min-width:0}.btn-block-mobile{width:100%}}@media (max-width:480px){h1{font-size:1.4rem}h2{font-size:1.2rem}.quick-links{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr}}.text-center{text-align:center}.text-right{text-align:right}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.d-flex{display:flex}.gap-1{gap:8px}.gap-2{gap:16px}.justify-between{justify-content:space-between}.align-center{align-items:center}.hidden{display:none !important}@media print{.dashboard-header,.theme-toggle,.btn{display:none !important}.card{box-shadow:none;border:1px solid #ccc}}.documents-library-card{margin-top:20px}.docs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-bottom:12px}.doc-card{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid #e5e7eb;border-radius:8px;text-decoration:none;color:#374151;transition:all 0.2s;background:#fafafa}.doc-card:hover{background:#f0f9ff;border-color:#3b82f6;transform:translateY(-1px);box-shadow:0 2px 8px rgba(59,130,246,0.15)}.doc-icon{font-size:24px;flex-shrink:0}.doc-info{flex:1;min-width:0}.doc-name{font-weight:600;font-size:13px;margin-bottom:4px;line-height:1.3}.doc-meta{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.badge-year{background:#dbeafe;color:#1e40af;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600}.doc-type{font-size:11px;color:#6b7280}.doc-note{font-size:10px;color:#f59e0b;font-style:italic;margin-top:2px}.library-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:12px}.library-year{background:#1e40af;color:white;padding:4px 10px;border-radius:12px;font-size:12px;font-weight:600}.drive-link-card{display:flex;align-items:center;gap:12px;padding:14px 16px;border:2px solid #3b82f6;border-radius:10px;text-decoration:none;color:#1e40af;transition:all 0.2s;background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);margin-bottom:16px}.drive-link-card:hover{background:linear-gradient(135deg,#dbeafe 0%,#bfdbfe 100%);transform:translateY(-1px);box-shadow:0 4px 12px rgba(59,130,246,0.2)}.drive-icon{font-size:32px;flex-shrink:0}.drive-info{flex:1}.drive-title{font-weight:700;font-size:15px;margin-bottom:2px;color:#1e3a8a}.drive-subtitle{font-size:12px;color:#6b7280}.drive-arrow{font-size:22px;font-weight:700;color:#3b82f6}.course-group{margin-bottom:18px}.course-group:last-child{margin-bottom:0}.course-group h4{margin:0 0 10px 0;font-size:14px;color:#374151;font-weight:700;padding:6px 12px;background:#f3f4f6;border-left:4px solid #3b82f6;border-radius:4px}.course-group.project h4{border-left-color:#10b981}.course-group.general h4{border-left-color:#f59e0b}.fab-documents{position:fixed;bottom:20px;right:20px;background:linear-gradient(135deg,#3b82f6 0%,#1e40af 100%);color:white;padding:12px 18px;border-radius:50px;text-decoration:none;display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px;box-shadow:0 4px 16px rgba(59,130,246,0.4);z-index:9999;transition:all 0.2s}.fab-documents:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(59,130,246,0.5);color:white}.fab-icon{font-size:20px}.fab-text{white-space:nowrap}@media (max-width:768px){.fab-documents{bottom:16px;right:16px;padding:10px 14px;font-size:13px}.fab-text{display:none}.fab-icon{font-size:22px}}.pt-topbar{position:fixed;top:0;left:0;right:0;background:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);color:white;padding:8px 20px;z-index:9998;display:flex;justify-content:flex-end;align-items:center;box-shadow:0 2px 8px rgba(0,0,0,0.15);font-family:'Segoe UI',Tahoma,sans-serif}.pt-topbar-btn{color:white;text-decoration:none;font-weight:600;font-size:13px;padding:6px 14px;background:rgba(255,255,255,0.2);border-radius:20px;transition:all 0.2s;display:flex;align-items:center;gap:6px;border:1px solid rgba(255,255,255,0.3)}.pt-topbar-btn:hover{background:rgba(255,255,255,0.35);color:white;transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,0.2)}.pt-topbar-icon{font-size:16px}.pt-topbar-external{font-size:11px;opacity:0.8}@media (max-width:768px){.pt-topbar{padding:6px 12px}.pt-topbar-btn{padding:5px 10px;font-size:12px}.pt-topbar-text{display:none}.pt-topbar-icon{font-size:18px}}body{padding-top:48px !important}.program-section{margin-bottom:28px;background:white;border-radius:12px;padding:16px 18px;box-shadow:0 1px 3px rgba(0,0,0,0.05);border-left:5px solid var(--prog-color,#1e3a5f)}.program-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--prog-color-light,#e5e7eb)}.program-section-name{font-size:16px;font-weight:700;color:var(--prog-color,#1e3a5f)}.program-section-count{background:var(--prog-color,#1e3a5f);color:white;padding:3px 12px;border-radius:12px;font-size:13px;font-weight:600}.card-program-pill{background:var(--prog-color,#6b7280);color:white;padding:3px 10px;border-radius:6px;font-weight:600;font-size:11px}.branch-tabs{display:flex;gap:4px;background:#f1f5f9;padding:4px;border-radius:12px;border:1px solid #e2e8f0;margin-bottom:16px;flex-wrap:wrap}.branch-tab{flex:1 1 auto;min-width:100px;padding:9px 14px;border:none;background:transparent;border-radius:8px;font-weight:600;color:#64748b;transition:all 0.2s;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;font-size:13px;white-space:nowrap}.branch-tab:hover{color:#1e293b;background:rgba(255,255,255,0.6)}.branch-tab.active{background:white;color:#1e3a5f;box-shadow:0 1px 3px rgba(15,23,42,0.08),0 1px 2px rgba(15,23,42,0.04)}.branch-tab[data-program]:not(.tab-all).active{color:var(--prog-color)}.branch-tab[data-program]:not(.tab-all):not(.active):hover{background:var(--prog-color-light);color:var(--prog-color)}.branch-tab .tab-count{background:rgba(15,23,42,0.08);color:inherit;padding:1px 7px;border-radius:10px;font-size:11px;font-weight:700;min-width:20px;text-align:center}.branch-tab.active .tab-count{background:rgba(15,23,42,0.1)}.branch-tab[data-program]:not(.tab-all).active .tab-count{background:var(--prog-color);color:white}.section-card{background:white;border-radius:14px;border:1px solid #e2e8f0;overflow:hidden;transition:box-shadow 0.2s}.section-card:hover{box-shadow:0 4px 14px rgba(15,23,42,0.04)}.section-card-header{padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #f1f5f9;background:linear-gradient(180deg,#f8fafc 0%,white 100%);flex-wrap:wrap}.section-card-header h2{margin:0;font-size:15px;color:#1e293b;font-weight:700;display:inline-flex;align-items:center;gap:8px}.section-card-header .meta{font-size:12px;color:#94a3b8;font-weight:500}.section-card-body{padding:18px 20px}.program-summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:12px}.program-summary-card{background:white;border-radius:12px;padding:18px;box-shadow:0 1px 3px rgba(0,0,0,0.05);border-left:5px solid var(--prog-color,#1e3a5f);transition:all 0.2s;text-decoration:none;color:inherit;display:block}.program-summary-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.1)}.program-summary-card .psc-name{font-size:14px;font-weight:700;color:var(--prog-color,#1e3a5f);margin-bottom:4px}.program-summary-card .psc-short{font-size:12px;color:var(--prog-color,#1e3a5f);opacity:0.7;margin-bottom:12px}.program-summary-card .psc-stats{display:flex;justify-content:space-between;align-items:center;padding-top:10px;border-top:1px solid var(--prog-color-light,#e5e7eb)}.program-summary-card .psc-count{font-size:24px;font-weight:800;color:var(--prog-color,#1e3a5f)}.program-summary-card .psc-label{font-size:11px;color:#6b7280}.welcome-card{background:linear-gradient(135deg,var(--welcome-color-1,#1e3a5f) 0%,var(--welcome-color-2,#2d5a87) 100%);color:white;padding:24px 28px;border-radius:14px;margin-bottom:20px;box-shadow:0 4px 12px rgba(0,0,0,0.08)}.welcome-card h2{margin:0 0 6px 0;font-size:22px;font-weight:700}.welcome-card p{margin:0;opacity:0.9;font-size:14px}.welcome-card .welcome-meta{display:flex;gap:16px;margin-top:10px;font-size:13px;opacity:0.85;flex-wrap:wrap}.welcome-card .welcome-meta span{display:flex;align-items:center;gap:4px}.welcome-card.role-student{--welcome-color-1:#7c3aed;--welcome-color-2:#a78bfa}.welcome-card.role-teacher{--welcome-color-1:#059669;--welcome-color-2:#34d399}.welcome-card.role-head{--welcome-color-1:#1e40af;--welcome-color-2:#3b82f6}.welcome-card.role-admin{--welcome-color-1:#ea580c;--welcome-color-2:#fb923c}