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ease-in-out}.metric-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md)}.metric-label{font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.metric-value{font-size:1.55rem;font-weight:800;color:var(--text);line-height:1.2}.metric-desc{font-size:.86rem;color:var(--muted);margin-top:4px}.dashboard-shell{width:min(1080px,calc(100% - 32px));margin:0 auto;padding:32px 0 64px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:32px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid var(--line)}.dashboard-title{font-size:clamp(1.8rem,3.5vw,2.4rem);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:6px 0 2px}.header-status-pill{display:flex;align-items:center;gap:10px;padding:6px 12px;border-radius:var(--radius-pill);background:var(--bg-surface);border:1px solid var(--line);font-size:.84rem;box-shadow:var(--shadow-sm)}.admin-shell{min-height:100vh;display:grid;grid-template-columns:260px minmax(0,1fr);grid-gap:28px;gap:28px;width:min(1280px,calc(100% - 32px));margin:0 auto;padding:24px 0 48px}.admin-sidebar{position:-webkit-sticky;position:sticky;top:24px;align-self:start;display:flex;flex-direction:column;gap:24px;padding:20px 16px;border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--bg-surface);box-shadow:var(--shadow-sm);max-height:calc(100vh - 48px);overflow-y:auto}.admin-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;padding:4px 8px;color:var(--text)}.admin-nav-group{display:flex;flex-direction:column;gap:4px}.admin-nav-heading{font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:8px 10px 4px}.admin-nav-item{border:1px solid transparent;border-radius:var(--radius-md);background:transparent;padding:9px 12px;text-align:left;font-size:.9rem;font-weight:600;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .15s ease-in-out;width:100%}.admin-nav-item:hover{background:var(--brand-blue-soft);color:var(--brand-blue-dark)}.admin-nav-item.active{background:var(--brand-blue-soft);border-color:rgba(8,126,219,.2);color:var(--brand-blue);font-weight:700}.admin-user-card{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}.admin-user-info{min-width:0}.admin-user-name{font-size:.88rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.admin-user-role{font-size:.75rem;color:var(--muted)}.admin-content{display:flex;flex-direction:column;gap:24px;min-width:0}.admin-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}.admin-page-title{font-size:clamp(1.8rem,3.2vw,2.4rem);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:6px 0 2px}.admin-stats-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px}.admin-stat-card{padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-surface);box-shadow:var(--shadow-sm);transition:all .15s ease-in-out}.admin-stat-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md)}.admin-stat-card .stat-label{font-size:.76rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}.admin-stat-card .stat-num{font-size:1.75rem;font-weight:800;color:var(--text);line-height:1.1}.quick-actions-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px}.quick-action-tile{padding:14px 16px;border:1px dashed var(--line-strong);border-radius:var(--radius-md);background:var(--bg-surface);cursor:pointer;display:flex;align-items:center;gap:10px;font-size:.88rem;font-weight:600;color:var(--text-secondary);transition:all .15s ease-in-out}.quick-action-tile:hover{background:var(--bg-surface);border-color:var(--brand-blue);color:var(--brand-blue);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.quick-action-icon{width:26px;height:26px;border-radius:var(--radius-sm);background:var(--brand-blue-soft);display:flex;align-items:center;justify-content:center;color:var(--brand-blue);font-weight:700}.admin-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-surface);box-shadow:var(--shadow-sm)}.admin-table{width:100%;border-collapse:collapse;min-width:640px;font-size:.92rem}.admin-table th{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--bg-subtle)}.admin-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line-subtle);vertical-align:middle}.admin-table tbody tr:last-child td{border-bottom:none}.admin-table tbody tr:hover{background:var(--bg-subtle)}.admin-toolbar{justify-content:space-between;gap:16px;margin-bottom:16px}.admin-filters,.admin-toolbar{display:flex;align-items:center;flex-wrap:wrap}.admin-filters{gap:8px}.admin-form-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--bg-surface);box-shadow:var(--shadow-md);margin-bottom:24px}.admin-form-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--line-subtle)}.admin-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px}.admin-span-2{grid-column:1/-1}.topbar{width:min(var(--max),calc(100% - 32px));margin:0 auto;justify-content:space-between;padding:20px 0}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:800;font-size:1.2rem;color:var(--text)}.nav{display:flex;gap:20px;font-weight:600;color:var(--text-secondary)}.hero,.nav{align-items:center}.hero{display:grid;grid-gap:40px;gap:40px;grid-template-columns:1.2fr .8fr;padding:48px 0 40px}.hero h1{margin:16px 0;font-family:var(--font-sans);font-size:clamp(2.6rem,4.8vw,4.2rem);font-weight:800;line-height:1.08;letter-spacing:-.025em;color:var(--text)}.hero p{margin:0;max-width:52ch;font-size:1.08rem;line-height:1.6;color:var(--text-secondary)}.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:20px;gap:20px;margin:48px 0}.auth-wrap{min-height:80vh;display:grid;place-items:center;padding:32px 0}.auth-card{width:min(460px,100%);padding:36px;border-radius:var(--radius-xl);border:1px solid var(--line);background:var(--bg-surface);box-shadow:var(--shadow-lg)}.footer{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:32px 0 48px;color:var(--muted);font-size:.88rem;text-align:center}@media (max-width:960px){.hero{gap:32px}.grid,.hero{grid-template-columns:1fr}.grid{gap:16px}.admin-stats-strip,.metric-strip,.quick-actions-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-shell{grid-template-columns:1fr}.admin-sidebar{position:static;max-height:none}}@media (max-width:640px){.admin-shell,.dashboard-shell,.footer,.topbar,main{width:min(var(--max),calc(100% - 24px))}.featured-card{padding:20px}.admin-form-grid,.admin-stats-strip,.metric-strip,.quick-actions-grid{grid-template-columns:1fr}.admin-span-2{grid-column:auto}.dashboard-header{flex-direction:column;align-items:flex-start}}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalZoomIn{0%{opacity:0;transform:scale(.97) translateY(6px)}to{opacity:1;transform:scale(1) translateY(0)}}.app-modal-backdrop{position:fixed;inset:0;z-index:9999;background:rgba(22,48,71,.45);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:16px;animation:modalFadeIn .18s ease-out}.app-modal-card{position:relative;border:1px solid var(--line);border-radius:var(--radius-modal);width:min(640px,100%);max-height:90vh;flex-direction:column;box-shadow:var(--shadow-modal);animation:modalZoomIn .2s cubic-bezier(.16,1,.3,1);overflow:hidden}.app-modal-card,.app-modal-head{background:var(--bg-surface);display:flex}.app-modal-head{align-items:center;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--line)}.app-modal-title{font-size:1.18rem;font-weight:700;color:var(--text);margin:0;display:flex;align-items:center;gap:8px}.app-modal-subtitle{margin:4px 0 0;font-size:.86rem;color:var(--text-secondary)}.app-modal-close{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:1px solid var(--line);background:transparent;color:var(--text-secondary);cursor:pointer;font-size:1.1rem;font-weight:600;line-height:1;transition:all .15s ease-in-out}.app-modal-close:hover{background:var(--bg-subtle);color:var(--text);border-color:var(--line-strong)}.app-modal-body{padding:24px;overflow-y:auto;flex:1 1;display:flex;flex-direction:column;gap:16px}.app-modal-footer{align-items:center;justify-content:flex-end;gap:12px;padding:16px 24px;border-top:1px solid var(--line)}.app-modal-footer,.subject-picker-box{display:flex;background:var(--bg-subtle)}.subject-picker-box{border:1px solid var(--line);border-radius:var(--radius-md);padding:14px 16px;flex-direction:column;gap:10px}.subject-category-filter{display:flex;gap:6px;flex-wrap:wrap}.subject-category-pill{font-size:.78rem;padding:4px 10px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--bg-surface);color:var(--text-secondary);cursor:pointer;font-weight:600;transition:all .15s ease-in-out}.subject-category-pill:hover{border-color:var(--brand-blue);color:var(--brand-blue)}.subject-category-pill.active{background:var(--brand-blue);color:#FFFFFF;border-color:var(--brand-blue)}.subject-checkbox-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:8px;gap:8px;max-height:220px;overflow-y:auto;padding:4px 2px}.subject-checkbox-item{display:flex;align-items:center;gap:8px;font-size:.86rem;padding:6px 10px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--bg-surface);cursor:pointer;transition:all .15s ease-in-out;-webkit-user-select:none;-moz-user-select:none;user-select:none}.subject-checkbox-item.checked,.subject-checkbox-item:hover{border-color:var(--brand-blue);background:var(--brand-blue-soft)}.subject-checkbox-item.checked{font-weight:600;color:var(--brand-blue-dark)}.subject-checkbox-item input[type=checkbox]{accent-color:var(--brand-blue);width:16px;height:16px;cursor:pointer}.subject-badge{display:inline-flex;align-items:center;gap:4px;font-size:.76rem;padding:2px 8px;border-radius:var(--radius-pill);background:var(--brand-blue-soft);color:var(--brand-blue-dark);border:1px solid rgba(8,126,219,.2);font-weight:600}.subject-badge-list{display:flex;flex-wrap:wrap;gap:4px}.copy-badge{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;padding:4px 8px;border-radius:var(--radius-sm);background:var(--bg-subtle);border:1px solid var(--line);cursor:pointer;transition:all .15s ease-in-out;font-family:monospace;font-weight:600}.copy-badge:hover{background:var(--brand-blue-soft);border-color:var(--brand-blue);color:var(--brand-blue)}