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var(--space-4);border:none;background:var(--color-gray-100);border-radius:var(--radius-full);color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all .2s;margin-bottom:var(--space-6)}.tsp-back-btn:hover{background:var(--color-gray-200);color:var(--color-text-primary)}[data-theme=dark] .tsp-back-btn{background:var(--color-surface-elevated)}.tsp-back-icon{font-size:var(--font-size-lg)}.tsp-student-header{display:flex;align-items:center;gap:var(--space-6);padding:var(--space-8);background:var(--color-surface);border-radius:var(--radius-2xl);border:1px solid 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rgba(255,255,255,.2)}.hero-stat{text-align:center}.hero-stat-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold)}.hero-stat-label{font-size:var(--font-size-sm);opacity:.8}.teachers-section{margin-bottom:var(--space-10)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6)}.section-title{font-family:var(--font-family-display);font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary)}.section-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-top:var(--space-1)}.teachers-grid{display:flex;gap:var(--space-6);overflow-x:auto;padding:var(--space-4) var(--space-1);margin:0 calc(var(--space-1) * -1);scrollbar-width:none}.teachers-grid::-webkit-scrollbar{display:none}.teacher-card{flex-shrink:0;display:flex;flex-direction:column;align-items:center;padding:var(--space-6);background:var(--color-surface);border-radius:var(--radius-xl);border:1px solid 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var(--transition-normal)}.quiz-card-enhanced:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.quiz-card-header{padding:var(--space-5);background:linear-gradient(135deg,#6366f10d,#8b5cf605);border-bottom:1px solid var(--color-border-light)}.quiz-card-body{padding:var(--space-5)}.quiz-card-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.quiz-card-meta{display:flex;gap:var(--space-4);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.news-preview{display:flex;flex-direction:column;gap:var(--space-3)}.news-preview-item{display:flex;gap:var(--space-3);padding:var(--space-3);border-radius:var(--radius-lg);transition:background var(--transition-fast)}.news-preview-item:hover{background:#00000008}.news-preview-dot{width:8px;height:8px;border-radius:50%;background:var(--color-primary-500);margin-top:6px;flex-shrink:0}.news-preview-content{flex:1;min-width:0}.news-preview-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-preview-date{font-size:var(--font-size-xs);color:var(--color-text-muted)}@media(max-width:1024px){.bento-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:auto}.bento-card.large{grid-column:span 2;grid-row:span 1}.hero-stats{flex-wrap:wrap;gap:var(--space-4)}}@media(max-width:768px){.bento-grid{grid-template-columns:1fr}.bento-card.large,.bento-card.wide{grid-column:span 1}.hero-section{padding:var(--space-8) var(--space-6)}.hero-greeting{font-size:var(--font-size-2xl)}.hero-search{max-width:100%}.hero-stats{gap:var(--space-4)}.hero-stat{flex:1;min-width:80px}.teachers-grid{gap:var(--space-4)}.teacher-card{min-width:140px;padding:var(--space-4)}.teacher-avatar{width:64px;height:64px}.stats-strip{flex-wrap:wrap}.stats-strip-item{min-width:calc(50% - var(--space-2))}}.about-hero{text-align:center;padding:var(--space-16) var(--space-8);background:linear-gradient(135deg,#1e3a5f,#2d5a87,#0d9488);border-radius:var(--radius-2xl);color:#fff;margin-bottom:var(--space-12)}.about-hero-title{font-family:var(--font-family-display);font-size:var(--font-size-5xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-4)}.about-hero-subtitle{font-size:var(--font-size-xl);opacity:.9;max-width:600px;margin:0 auto}.about-features{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8);margin-bottom:var(--space-12)}.about-feature{text-align:center;padding:var(--space-8);background:var(--color-surface);border-radius:var(--radius-xl);border:1px solid var(--color-border-light);transition:all var(--transition-normal)}.about-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.about-feature-icon{width:64px;height:64px;margin:0 auto var(--space-4);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:2rem;background:var(--gradient-primary);color:#fff}.about-feature-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-2)}.about-feature-description{color:var(--color-text-secondary)}@media(max-width:768px){.about-features{grid-template-columns:1fr}.about-hero{padding:var(--space-10) var(--space-6)}.about-hero-title{font-size:var(--font-size-3xl)}}