:root{--primary: #030b1a;--primary-hover: #061428;--accent: #f5c800;--background: #f4f6f9;--surface: #FFFFFF;--text: #151923;--text-muted: #6B7280;--border: #DBDFE6;--radius-lg: 16px;--radius-md: 8px;--radius-sm: 4px;--font-main: "Poppins", sans-serif;--font-heading: "Poppins", sans-serif;--status-green-text: #10B981;--status-green-bg: rgba(16, 185, 129, .1);--status-blue-text: #3B82F6;--status-blue-bg: rgba(59, 130, 246, .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--background);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;color:#151923}a{text-decoration:none;color:inherit;transition:all .2s ease}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s cubic-bezier(.4,0,.2,1)}.container{max-width:1400px;margin:0 auto;padding:0 2rem}.glass-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 20px 25px -5px #0000000d,0 8px 10px -6px #00000003}.gradient-text{color:var(--primary)}.gradient-bg{background:var(--primary)}.btn-primary{padding:12px 24px;border-radius:var(--radius-md);background:var(--primary);color:#fff;font-weight:600;display:inline-flex;align-items:center;gap:.5rem}.btn-primary:hover{background:var(--primary-hover)}.sidebar{width:240px;background-color:#030b1a;color:#fff9;min-height:100vh;position:fixed;left:0;top:0;display:flex;flex-direction:column;box-shadow:4px 0 10px #0000001a;z-index:1000}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:12px 24px;color:#fff9;font-size:14px;font-weight:500;position:relative;transition:all .2s}.sidebar-nav-item:hover{background:#ffffff14;transform:translate(1px)}.sidebar-nav-item.active{background:#ffffff29;color:#fff}.sidebar-nav-item.active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background-color:var(--accent);border-top-right-radius:4px;border-bottom-right-radius:4px}.sidebar-category{text-transform:uppercase;font-size:11px;font-weight:700;color:#fff6;padding:24px 24px 8px;letter-spacing:.05em}.main-layout{display:flex;min-height:100vh;background-color:var(--background)}.main-content{flex:1;margin-left:240px;padding:32px}.dashboard-header{margin-bottom:32px}.dashboard-header h1{font-size:36px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:flex;align-items:flex-start;gap:16px;box-shadow:0 4px 6px -1px #0000000d;transition:all .2s}.stat-card:hover{box-shadow:0 20px 25px -5px #0000001a;transform:translateY(-2px)}.stat-icon-wrapper{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center}.stat-value{font-size:32px;font-weight:700;line-height:1.1;color:#151923;margin-bottom:4px}.stat-label{font-size:14px;color:var(--text-muted);font-weight:500}.status-badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:9999px;font-size:12px;font-weight:700;text-transform:uppercase}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--background)}::-webkit-scrollbar-thumb{background:#dbdfe6;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.markdown-body h1,.markdown-body h2,.markdown-body h3{color:var(--text);margin-top:2rem;margin-bottom:1rem}.markdown-body p{margin-bottom:1rem;color:var(--text)}.markdown-body ul,.markdown-body ol{padding-left:2rem;margin-bottom:1.5rem;color:var(--text)}.markdown-body pre{background:var(--primary);color:#fff;padding:1.5rem;border-radius:var(--radius-lg);overflow-x:auto;margin:1.5rem 0}.markdown-body code{font-family:monospace;color:var(--status-blue-text);background:var(--status-blue-bg);padding:.1rem .3rem;border-radius:.25rem;font-size:.9em}.markdown-body pre code{color:#fff;background:transparent;padding:0}.markdown-body a{color:var(--status-blue-text);text-decoration:underline}:root{--bg-deep: #030b1a;--exam-card: #0a1f3d;--exam-accent: #f5c800;--exam-border: rgba(245,200,0,.18);--exam-text: #f5c800;--exam-muted: #7a6800}.exam-dark-page{background:var(--bg-deep);min-height:100vh}.module-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:24px}.study-section-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}@media (max-width: 900px){.exam-setup-grid,.module-page-grid,.classroom-choose-grid{grid-template-columns:1fr}}@media (max-width: 600px){.study-section-grid,.module-grid{grid-template-columns:1fr}}@media (max-width: 600px){.exam-setup-grid>div{padding:1.25rem!important}.module-page-grid aside{display:none}.glass-card{padding:1rem!important}}@media (max-width: 768px){.dashboard-header h1{font-size:24px}.container{padding:0 1rem}}.sidebar-desktop{display:block}.mobile-topbar{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:var(--primary);align-items:center;justify-content:space-between;padding:0 16px;z-index:500;box-shadow:0 2px 8px #0003}.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:900;transform:translate(-100%);transition:transform .25s ease;visibility:hidden;pointer-events:none}.mobile-drawer.open{transform:translate(0);visibility:visible;pointer-events:all}.mobile-drawer .sidebar{min-height:100vh}@media (max-width: 768px){.sidebar-desktop{display:none}.mobile-topbar{display:flex}.mobile-drawer{visibility:hidden;pointer-events:none}.mobile-drawer.open{visibility:visible;pointer-events:all}.main-layout{flex-direction:column}.main-content{margin-left:0!important;padding:72px 16px 24px}}.module-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:40px}.exam-setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:stretch}.module-page-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:3rem;width:100%}.study-section-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.classroom-choose-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media (max-width: 900px){.exam-setup-grid,.module-page-grid,.classroom-choose-grid{grid-template-columns:1fr}.module-page-grid aside{display:none}}@media (max-width: 600px){.study-section-grid,.module-grid{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}h1{font-size:1.6rem!important}}@media (max-width: 400px){.stat-grid{grid-template-columns:1fr}}@keyframes spin{to{transform:rotate(360deg)}}.study-guide-title{font-size:2.5rem;margin-bottom:.5rem;line-height:1.2}.study-modules-list{display:flex;flex-direction:column;gap:4rem}.study-module-link{display:flex;align-items:center;gap:1.25rem;margin-bottom:2rem;width:max-content;max-width:100%}.study-module-num{font-size:2.5rem;font-weight:800;opacity:.1;color:var(--text);flex-shrink:0}.study-module-title{font-size:1.75rem;border-bottom:2px solid var(--primary);padding-bottom:.4rem;color:var(--text)}@media (max-width: 768px){.study-guide-title{font-size:1.75rem}.study-modules-list{gap:2.5rem}.study-module-num{font-size:1.75rem}.study-module-title{font-size:1.25rem}.study-module-link{margin-bottom:1.25rem;gap:.75rem}.container{padding:0 1rem!important}}@media (max-width: 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