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input::placeholder{color:#475569}.forgot-password{background:none;border:none;padding:0;color:var(--text-muted);font-size:.875rem;font-weight:500;cursor:pointer;transition:color .2s;align-self:center}.forgot-password:hover{color:var(--primary-hover);text-decoration:underline}.login-error{color:var(--primary);font-size:.875rem;text-align:center;padding:.75rem;background-color:#ec1f281a;border:1px solid rgba(236,31,40,.3);border-radius:6px}.login-button{background-color:var(--primary);color:#fff;border:none;padding:.875rem;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);margin-top:.5rem;box-shadow:0 4px 14px #ec1f2863}.login-button:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 20px #ec1f283b}.login-button:active{transform:translateY(1px);box-shadow:0 2px 10px #ec1f2833}.signup-prompt{margin-top:2rem;text-align:center;font-size:.875rem;color:var(--text-muted)}.signup-prompt a{color:#fff;text-decoration:none;font-weight:500;margin-left:.25rem;transition:color .2s}.signup-prompt a:hover{text-decoration:underline;color:var(--primary)}@media(min-width:900px){.login-left{display:flex}.mobile-logo-container{display:none}.login-card{padding:3.5rem 3rem}}:root{--prof-primary: #0f2554;--prof-secondary: #ec1f28;--prof-bg: #f8fafc;--prof-surface: #ffffff;--prof-text-main: #1e293b;--prof-text-muted: #64748b;--prof-border: #e2e8f0;--prof-radius-lg: 12px;--prof-radius-md: 8px;--prof-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--prof-shadow: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--prof-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .025);--prof-transition: all .2s cubic-bezier(.4, 0, .2, 1)}.prof-layout{display:flex;height:100vh;height:100dvh;width:100%;background-color:var(--prof-bg);font-family:Inter,system-ui,-apple-system,sans-serif;color:var(--prof-text-main);overflow:hidden;box-sizing:border-box}.prof-layout *{box-sizing:border-box}.prof-sidebar{width:280px;background-color:#1e293b;border-right:none;display:flex;flex-direction:column;z-index:40;flex-shrink:0;transition:transform .3s ease}.prof-sidebar-header{padding:24px;border-bottom:1px solid rgba(255,255,255,.05);display:flex;flex-direction:column;gap:8px}.sidebar-brand{display:flex;justify-content:space-between;align-items:center}.mobile-close-btn{display:none;background:transparent;border:none;color:#94a3b8;cursor:pointer;padding:4px}.mobile-close-btn svg{width:24px;height:24px}.prof-logo{margin:0;font-size:1.5rem;font-weight:800;letter-spacing:-.02em}.logo-examineer{color:#fff}.logo-ai{color:var(--prof-secondary)}.badge{display:inline-block;align-self:flex-start;background-color:#ffffff1a;color:#e2e8f0;font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}.prof-sidebar-nav{padding:24px 16px;flex:1;overflow-y:auto}.nav-section-title{font-size:.75rem;text-transform:uppercase;font-weight:700;color:#94a3b8;margin-bottom:12px;padding-left:12px;letter-spacing:.05em}.prof-nav-btn{display:flex;align-items:center;width:100%;padding:12px;background:transparent;border:none;text-align:left;font-size:.95rem;font-weight:500;color:#cbd5e1;border-radius:var(--prof-radius-md);margin-bottom:4px;cursor:pointer;transition:var(--prof-transition);font-family:inherit;gap:12px}.nav-icon{width:20px;height:20px;opacity:.7}.prof-nav-btn:hover:not(.disabled){background-color:#ffffff0d;color:#fff}.prof-nav-btn.active{background-color:var(--prof-secondary);color:#fff}.prof-nav-btn.active .nav-icon{opacity:1}.prof-nav-btn.disabled{opacity:.5;cursor:not-allowed}.prof-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.prof-topbar{height:70px;background-color:var(--prof-surface);border-bottom:1px solid var(--prof-border);display:flex;align-items:center;justify-content:space-between;padding:0 32px;flex-shrink:0}.topbar-left{display:flex;align-items:center}.mobile-menu-btn{display:none;background:transparent;border:none;color:var(--prof-text-main);cursor:pointer;padding:8px;margin-right:16px}.mobile-menu-btn svg{width:24px;height:24px}.user-profile{display:flex;align-items:center;gap:16px}.user-email{font-size:.9rem;font-weight:500;color:var(--prof-text-main)}.btn-logout{background:transparent;border:1px solid var(--prof-border);padding:8px 16px;border-radius:var(--prof-radius-md);font-size:.85rem;font-weight:500;color:var(--prof-text-muted);cursor:pointer;transition:var(--prof-transition)}.btn-logout:hover{border-color:var(--prof-secondary);color:var(--prof-secondary);background-color:#ec1f280d}.prof-content-scroll{flex:1;overflow-y:auto;padding:40px;scrollbar-gutter:stable}.create-subject-container{width:100%}.cs-header{margin-bottom:32px}.cs-header h2{font-size:2rem;font-weight:700;color:var(--prof-primary);margin:0 0 8px;letter-spacing:-.01em}.cs-header p{font-size:1rem;color:var(--prof-text-muted);margin:0}.cs-card{background-color:var(--prof-surface);border-radius:var(--prof-radius-lg);padding:24px 32px;box-shadow:var(--prof-shadow);border:1px solid var(--prof-border);margin-bottom:12px}.cs-card-title{font-size:1.1rem;font-weight:600;margin:0 0 20px;color:var(--prof-primary);border-bottom:2px solid rgba(15,37,84,.1);padding-bottom:12px}.cs-input-group{display:flex;flex-direction:column;gap:20px}.cs-input-group.row{flex-direction:row}.cs-input-field{display:flex;flex-direction:column;gap:8px}.flex-1{flex:1}.flex-2{flex:2}.cs-input-field label{font-size:.85rem;font-weight:600;color:var(--prof-text-main)}input,textarea,select{width:100%;padding:12px 16px;border:1px solid #cbd5e1;border-radius:var(--prof-radius-md);font-size:.95rem;font-family:inherit;transition:var(--prof-transition);background-color:#f8fafc}select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:40px}select:disabled{opacity:.5;cursor:not-allowed}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--prof-primary);background-color:#fff;box-shadow:0 0 0 3px #0f25541a}.syllabus-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.syllabus-header h3{font-size:1.25rem;font-weight:700;color:var(--prof-text-main);margin:0}.btn-primary{background-color:var(--prof-primary);color:#fff;border:none;padding:14px 28px;font-size:1rem;font-weight:600;border-radius:var(--prof-radius-md);cursor:pointer;transition:var(--prof-transition);box-shadow:var(--prof-shadow-sm)}.btn-primary:hover{background-color:#0b1c3f;box-shadow:var(--prof-shadow);transform:translateY(-1px)}.btn-secondary{background-color:#0f25540d;color:var(--prof-primary);border:1px solid rgba(15,37,84,.2);padding:10px 20px;font-size:.9rem;font-weight:600;border-radius:var(--prof-radius-md);cursor:pointer;transition:var(--prof-transition)}.btn-secondary:hover{background-color:#0f25541a;border-color:var(--prof-primary)}.btn-text{background:transparent;color:var(--prof-primary);border:none;padding:8px 0;font-size:.9rem;font-weight:600;cursor:pointer;transition:var(--prof-transition)}.btn-text:hover{color:var(--prof-secondary);text-decoration:underline}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--prof-radius-md);border:none;background:#f1f5f9;color:var(--prof-text-muted);cursor:pointer;transition:var(--prof-transition)}.btn-icon.sm{width:28px;height:28px}.btn-icon.sm svg{width:14px;height:14px}.btn-icon svg{width:18px;height:18px}.btn-icon:hover{background:#e2e8f0;color:var(--prof-text-main)}.btn-icon.danger:hover{background:#ec1f281a;color:var(--prof-secondary)}.co-list{display:flex;flex-direction:column;gap:24px}.co-card{background-color:#fff;border:1px solid var(--prof-border);border-radius:var(--prof-radius-lg);box-shadow:var(--prof-shadow-sm);overflow:hidden;transition:var(--prof-transition)}.co-card:hover{border-color:#cbd5e1;box-shadow:var(--prof-shadow)}.co-header{background-color:#f8fafc;padding:20px 24px;border-bottom:1px solid var(--prof-border);display:flex;justify-content:space-between;align-items:center;gap:16px}.co-title-wrapper{flex:1;display:flex;align-items:center;gap:16px}.co-badge{background-color:var(--prof-primary);color:#fff;padding:6px 12px;border-radius:var(--prof-radius-md);font-size:.85rem;font-weight:700;white-space:nowrap}.co-title-input{background:#fff;border:1px solid #cbd5e1;font-size:1.05rem;font-weight:500;border-radius:var(--prof-radius-md)}.mo-list{padding:24px;background-color:#fff}.mo-section-title{font-size:.95rem;font-weight:600;color:var(--prof-text-muted);margin:0 0 16px;text-transform:uppercase;letter-spacing:.05em}.mo-item{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px;background-color:#f8fafc;padding:16px;border-radius:var(--prof-radius-md);border:1px solid #e2e8f0}.mo-badge{background-color:#0f25541a;color:var(--prof-primary);padding:4px 8px;border-radius:4px;font-size:.75rem;font-weight:700;white-space:nowrap}.mo-textarea{min-height:48px;resize:vertical;background-color:#fff}.cs-error{color:var(--prof-secondary);font-size:.9rem;font-weight:500;margin:0 0 8px;padding:12px 16px;background-color:#ec1f280f;border:1px solid rgba(236,31,40,.2);border-radius:var(--prof-radius-md)}.cs-success{color:#16a34a;font-size:.9rem;font-weight:500;margin:0 0 8px;padding:12px 16px;background-color:#16a34a0f;border:1px solid rgba(22,163,74,.2);border-radius:var(--prof-radius-md)}.cs-actions{margin-top:40px;display:flex;justify-content:flex-end;gap:12px;padding-top:24px;border-top:1px solid var(--prof-border)}.btn-back{display:inline-flex;align-items:center;gap:8px;background:transparent;border:none;color:var(--prof-text-muted);font-size:.9rem;font-weight:500;cursor:pointer;padding:0;margin-bottom:16px;transition:var(--prof-transition)}.btn-back:hover{color:var(--prof-primary)}.subjects-container{width:100%}.subjects-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.subjects-title{font-size:2rem;font-weight:700;color:var(--prof-primary);margin:0 0 8px;letter-spacing:-.01em}.subjects-subtitle{font-size:1rem;color:var(--prof-text-muted);margin:0}.subjects-loading{display:flex;align-items:center;justify-content:center;padding:80px 0;color:var(--prof-text-muted);font-size:1rem}.subjects-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 0;text-align:center}.subjects-empty .empty-icon{width:64px;height:64px;color:#cbd5e1;margin-bottom:16px}.subjects-empty h3{font-size:1.25rem;font-weight:600;color:var(--prof-text-main);margin:0 0 8px}.subjects-empty p{font-size:.95rem;color:var(--prof-text-muted);margin:0}.subjects-search{position:relative;margin-bottom:24px}.subjects-search .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--prof-text-muted);pointer-events:none}.subjects-search-input{width:100%;padding:9px 40px 9px 38px;border:1.5px solid var(--prof-border);border-radius:var(--prof-radius-md);font-size:.875rem;background-color:#fff;box-shadow:0 1px 2px #00000005;transition:var(--prof-transition)}.subjects-search-input:focus{outline:none;border-color:var(--prof-primary);box-shadow:0 0 0 3px #0f25541a}.subjects-search-input::placeholder{color:#94a3b8}.search-clear-btn{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:4px;background:transparent;color:var(--prof-text-muted);cursor:pointer;transition:var(--prof-transition)}.search-clear-btn svg{width:16px;height:16px}.search-clear-btn:hover{background:#f1f5f9;color:var(--prof-text-main)}.subjects-pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:32px}.pagination-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--prof-border);border-radius:var(--prof-radius-md);background:var(--prof-surface);color:var(--prof-text-main);font-size:.85rem;font-weight:500;cursor:pointer;transition:var(--prof-transition)}.pagination-btn:hover:not(:disabled){border-color:var(--prof-primary);color:var(--prof-primary);background-color:#0f255408}.pagination-btn:disabled{opacity:.4;cursor:not-allowed}.pagination-pages{display:flex;gap:4px}.pagination-page{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--prof-border);border-radius:var(--prof-radius-md);background:var(--prof-surface);color:var(--prof-text-main);font-size:.85rem;font-weight:500;cursor:pointer;transition:var(--prof-transition)}.pagination-page:hover{border-color:var(--prof-primary);color:var(--prof-primary)}.pagination-page.active{background-color:var(--prof-primary);border-color:var(--prof-primary);color:#fff}.subjects-count{text-align:center;font-size:.85rem;color:var(--prof-text-muted);margin-top:12px}.subjects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.subject-card{background-color:var(--prof-surface);border:1px solid var(--prof-border);border-radius:var(--prof-radius-lg);box-shadow:var(--prof-shadow-sm);transition:var(--prof-transition)}.subject-card:hover{border-color:#cbd5e1;box-shadow:var(--prof-shadow)}.subject-card-body{padding:24px;display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.subject-card-info{flex:1;min-width:0}.subject-code{display:inline-block;background-color:#0f255414;color:var(--prof-primary);font-size:.8rem;font-weight:700;padding:4px 10px;border-radius:4px;margin-bottom:10px;letter-spacing:.02em}.subject-name{font-size:1.1rem;font-weight:600;color:var(--prof-text-main);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.75rem}.subject-meta{font-size:.85rem;color:var(--prof-text-muted)}.subject-card-actions{display:flex;gap:8px;flex-shrink:0}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.prof-sidebar-overlay{display:none;position:fixed;inset:0;background-color:#00000080;z-index:30;opacity:0;animation:fadeIn .2s forwards}@keyframes fadeIn{to{opacity:1}}@media(max-width:768px){.prof-sidebar{position:fixed;top:0;left:0;height:100vh;transform:translate(-100%)}.prof-sidebar.open{transform:translate(0);box-shadow:4px 0 24px #00000080}.mobile-menu-btn,.mobile-close-btn{display:flex}.prof-sidebar-overlay{display:block}.prof-topbar{padding:0 16px}.user-email{display:none}.prof-content-scroll{padding:24px;padding-bottom:max(24px,env(safe-area-inset-bottom,24px))}.cs-header h2{font-size:1.4rem}.cs-header p{font-size:.875rem}.cs-card{padding:20px}.cs-input-group.row{flex-direction:column}.syllabus-header{flex-direction:column;align-items:flex-start;gap:12px}.co-header{flex-direction:column;align-items:flex-start}.co-title-wrapper{width:100%;flex-direction:column;align-items:flex-start}.co-title-input{width:100%}.subjects-header{flex-direction:column;gap:16px}.subjects-grid{grid-template-columns:1fr}}.qb-container{width:100%}.qb-subject-card{cursor:pointer}.qb-subject-card:hover{border-color:var(--prof-primary);background-color:#f8fafc}.qb-subject-card .subject-card-info{flex:1}.qb-card-arrow{display:flex;align-items:center;justify-content:center;color:var(--prof-text-muted);transition:var(--prof-transition)}.qb-card-arrow svg{width:20px;height:20px}.qb-subject-card:hover .qb-card-arrow{color:var(--prof-primary);transform:translate(4px)}.qb-list-header{display:flex;justify-content:space-between;align-items:center}.ql-list{display:flex;flex-direction:column;border:1px solid var(--prof-border);border-radius:var(--prof-radius-lg);overflow:hidden;background:var(--prof-surface)}.ql-item{border-bottom:1px solid var(--prof-border)}.ql-item:last-child{border-bottom:none}.ql-row{display:flex;align-items:center;gap:10px;padding:8px 14px;cursor:pointer;transition:background .15s;-webkit-user-select:none;user-select:none}.ql-row:hover{background:#f8fafc}.ql-item.expanded>.ql-row{background:#f1f5f9;border-bottom:1px solid var(--prof-border)}.ql-num{flex-shrink:0;font-weight:600;color:var(--prof-text-muted);font-size:.78rem;width:28px}.ql-text{flex:1;font-size:.875rem;color:var(--prof-text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.35}.ql-tags{display:flex;gap:6px;flex-shrink:0}.qc-tag{background-color:#0f255414;color:var(--prof-primary);padding:2px 6px;border-radius:4px;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}.ql-row-actions{display:flex;gap:2px;flex-shrink:0}.ql-row-actions .btn-icon{width:26px;height:26px;padding:4px}.ql-chevron{flex-shrink:0;color:var(--prof-text-muted);transition:transform .2s}.ql-chevron.open{transform:rotate(90deg)}.ql-detail{padding:14px 20px;background:#fafbfc}.qc-text{font-size:.9rem;font-weight:500;color:var(--prof-text-main);margin:0 0 12px;line-height:1.55}.qc-choices{display:flex;flex-direction:column;gap:6px}.qc-choice{display:flex;align-items:center;gap:10px;padding:7px 12px;background-color:#f8fafc;border:1px solid var(--prof-border);border-radius:var(--prof-radius-md);position:relative;overflow:hidden}.qc-choice.correct{background-color:#16a34a0d;border-color:#16a34a4d}.choice-letter{font-weight:700;color:var(--prof-text-muted)}.qc-choice.correct .choice-letter{color:#16a34a}.choice-text{flex:1;font-size:.855rem;color:var(--prof-text-main)}.correct-icon{width:16px;height:16px;color:#16a34a}.ql-filter-bar{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}.ql-search-inline{flex:1;min-width:180px;margin-bottom:0!important}.ql-filter-select{padding:7px 10px;border:1px solid var(--prof-border);border-radius:var(--prof-radius-md);background:var(--prof-surface);color:var(--prof-text-main);font-size:.85rem;cursor:pointer;outline:none;transition:border-color .15s}.ql-filter-select:focus{border-color:var(--prof-primary)}.ql-filter-select:disabled{opacity:.45;cursor:default}.ql-filter-clear{padding:7px 12px;border:1px solid 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button{flex:1}.danger-btn{background-color:var(--prof-secondary)}.danger-btn:hover{background-color:#c71720}.toast{position:fixed;top:24px;right:24px;z-index:200;display:flex;align-items:center;gap:12px;padding:14px 20px;border-radius:var(--prof-radius-md);background-color:#fff;box-shadow:0 10px 25px #0000001f,0 4px 10px #00000014;border-left:4px solid;animation:toastSlideIn .35s cubic-bezier(.16,1,.3,1);max-width:380px}.toast-success{border-left-color:#16a34a}.toast-error{border-left-color:var(--prof-secondary)}.toast-info{border-left-color:var(--prof-primary)}@keyframes toastSlideIn{0%{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:translateY(0)}}.toast-icon{flex-shrink:0;width:24px;height:24px}.toast-icon svg{width:24px;height:24px}.toast-success .toast-icon{color:#16a34a}.toast-error .toast-icon{color:var(--prof-secondary)}.toast-info 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infinite}.loading-message{margin:0;font-size:.95rem;font-weight:600;color:var(--prof-text-main, #0f172a);text-align:center;line-height:1.4}.loading-subtext{margin:-6px 0 0;font-size:.8rem;color:var(--prof-text-muted, #64748b);text-align:center}@keyframes loSpin{to{transform:rotate(360deg)}}@keyframes loFadeIn{0%{opacity:0}to{opacity:1}}@keyframes loSlideUp{0%{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}