*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--navy: #0a1628;--navy-mid: #112240;--navy-light: #1d3461;--gold: #f0a500;--gold-dim: #c8861a;--gold-pale: #fef3d0;--gold-glow: rgba(240, 165, 0, .15);--heading: #0a1628;--cs-color: #3b82f6;--cs-pale: #eff6ff;--cs-dark: #1d4ed8;--it-color: #0d9488;--it-pale: #f0fdfa;--it-dark: #0f766e;--me-color: #f59e0b;--me-pale: #fffbeb;--me-dark: #b45309;--ce-color: #16a34a;--ce-pale: #f0fdf4;--ce-dark: #15803d;--ee-color: #9333ea;--ee-pale: #faf5ff;--ee-dark: #7e22ce;--etc-color: #ef4444;--etc-pale: #fff1f2;--etc-dark: #dc2626;--bg: #fdfbd4;--surface: #fffff0;--surface2: #f3f2ef;--surface3: #eceae5;--text: #111827;--text-2: #374151;--text-3: #6b7280;--text-4: #9ca3af;--border: #e5e3de;--border-2: #d1cfc8;--r-sm: 6px;--r-md: 10px;--r-lg: 16px;--r-xl: 24px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08), 0 2px 6px rgba(0, 0, 0, .05);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .12), 0 4px 12px rgba(0, 0, 0, .06);--shadow-xl: 0 24px 64px rgba(0, 0, 0, .15);--t-fast: .12s ease;--t-base: .2s ease;--t-slow: .35s ease}[data-theme=dark]{--navy: #0a1628;--navy-mid: #0f1e38;--navy-light: #1d3461;--gold: #fbbf24;--gold-dim: #f59e0b;--gold-pale: #2a1d00;--gold-glow: rgba(251, 191, 36, .15);--heading: #f0f6fc;--cs-pale: #0c1a2e;--it-pale: #061a18;--me-pale: #1c1200;--ce-pale: #071a0d;--ee-pale: #150b24;--etc-pale: #200808;--bg: #0d1117;--surface: #161b22;--surface2: #1c2128;--surface3: #21262d;--text: #e6edf3;--text-2: #c9d1d9;--text-3: #8b949e;--text-4: #484f58;--border: #30363d;--border-2: #484f58;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 16px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .6)}html{scroll-behavior:smooth}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;transition:background var(--t-slow),color var(--t-slow)}.container{max-width:1140px;margin:0 auto;padding:0 24px;width:100%}.page-wrap{max-width:1140px;margin:0 auto;padding:0 24px 100px;width:100%}.serif{font-family:"DM Serif Display",serif}h1,h2,h3{font-family:"DM Serif Display",serif;line-height:1.2;color:var(--heading)}.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border-radius:var(--r-md);font-size:14px;font-weight:600;font-family:Inter,sans-serif;cursor:pointer;transition:all var(--t-base);text-decoration:none;border:none;white-space:nowrap}.btn-primary{background:#0a1628;color:#fff}.btn-primary:hover{background:#112240;transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-gold{background:var(--gold);color:#0a1628}.btn-gold:hover{background:var(--gold-dim);transform:translateY(-1px);box-shadow:0 4px 16px var(--gold-glow)}.btn-outline{background:transparent;color:var(--heading);border:1.5px solid var(--border-2)}.btn-outline:hover{border-color:var(--heading);background:var(--surface2)}.btn-ghost{background:transparent;color:var(--text-3);padding:8px 14px}.btn-ghost:hover{background:var(--surface2);color:var(--text)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);transition:all var(--t-base)}.card:hover{box-shadow:var(--shadow-md)}.card-interactive{cursor:pointer}.card-interactive:hover{transform:translateY(-2px)}.badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;letter-spacing:.3px;padding:3px 9px;border-radius:20px;text-transform:uppercase}.badge-notes{background:#dbeafe;color:#1e40af}.badge-pyq{background:#fef3c7;color:#92400e}.badge-practical{background:#dcfce7;color:#166534}.badge-books{background:#ede9fe;color:#6d28d9}.badge-new{background:var(--gold);color:var(--navy)}.badge-result{background:#fee2e2;color:#991b1b}.badge-exam{background:#fce7f3;color:#9d174d}.badge-syllabus{background:#ecfdf5;color:#065f46}.badge-notice{background:#f0f9ff;color:#0c4a6e}[data-theme=dark] .badge-notes{background:#1e3a5f;color:#93c5fd}[data-theme=dark] .badge-pyq{background:#2d1f00;color:#fcd34d}[data-theme=dark] .badge-practical{background:#052e16;color:#6ee7b7}[data-theme=dark] .badge-books{background:#2e1065;color:#c4b5fd}[data-theme=dark] .badge-new{background:var(--gold);color:#111}[data-theme=dark] .badge-result{background:#3f0a0a;color:#fca5a5}[data-theme=dark] .badge-exam{background:#3b0764;color:#f0abfc}[data-theme=dark] .badge-syllabus{background:#022c22;color:#6ee7b7}[data-theme=dark] .badge-notice{background:#0c2040;color:#7dd3fc}.section-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;padding-top:40px;border-top:1px solid var(--border)}.section-title{font-size:22px;color:var(--heading)}.section-sub{font-size:13px;color:var(--text-4)}.subject-item{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);cursor:pointer;transition:all var(--t-base);gap:12px}.subject-item:hover{border-color:var(--gold);box-shadow:var(--shadow-sm);padding-left:22px;background:var(--gold-pale)}.subject-code{font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--gold-dim);background:var(--gold-pale);padding:4px 10px;border-radius:20px;white-space:nowrap;flex-shrink:0}[data-theme=dark] .subject-code{color:var(--gold);background:var(--gold-pale)}.subject-name{font-size:14px;font-weight:500;color:var(--heading)}.subject-credits{font-size:12px;color:var(--text-3);margin-top:1px}.sem-tabs{display:flex;gap:6px;margin-bottom:20px;flex-wrap:wrap}.sem-tab{padding:8px 18px;border:1.5px solid var(--border);border-radius:var(--r-md);background:var(--surface);color:var(--text-3);font-size:13px;font-weight:500;font-family:Inter,sans-serif;cursor:pointer;transition:all var(--t-base)}.sem-tab:hover{border-color:var(--heading);color:var(--heading)}.sem-tab.active{background:#0a1628;color:#fff;border-color:#0a1628}.breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);flex-wrap:wrap;padding:20px 0 0}.bc-link{color:var(--gold-dim);cursor:pointer;text-decoration:none;background:none;border:none;font-family:Inter,sans-serif;font-size:13px;padding:0;transition:color var(--t-fast)}.bc-link:hover{color:var(--gold)}.bc-sep{color:var(--border-2)}.subject-header{padding:20px 0 22px;border-bottom:1px solid var(--border);margin-bottom:24px}.subject-header h1{font-size:30px;color:var(--heading);margin-bottom:8px}.subject-meta{display:flex;gap:16px;font-size:13px;color:var(--text-3);flex-wrap:wrap;align-items:center}.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--gold);display:inline-block}.material-grid{display:grid;gap:20px;margin-bottom:32px}.mat-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}.mat-section-head{padding:15px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--surface2)}.mat-section-title{font-size:14px;font-weight:600;color:var(--heading);display:flex;align-items:center;gap:8px}.mat-section-body{padding:16px 20px}.info-strip{background:#eff6ff;border:1px solid #bfdbfe;border-radius:var(--r-md);padding:11px 15px;font-size:13px;color:#1e40af;margin-bottom:16px;line-height:1.5}[data-theme=dark] .info-strip{background:#0c1e38;border-color:#1e3a5f;color:#93c5fd}.ad-slot{background:var(--surface);border:1.5px dashed var(--border-2);border-radius:var(--r-md);padding:18px;text-align:center;font-size:12px;color:var(--text-4);margin:20px 0;min-height:90px;display:flex;align-items:center;justify-content:center}.ad-label{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--text-4);margin-bottom:3px}.syllabus-strip{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:var(--r-md);padding:13px 16px;margin-bottom:18px;flex-wrap:wrap;gap:10px}.syllabus-dl-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--gold-pale);border:1px solid var(--gold-dim);border-radius:var(--r-md);color:var(--gold-dim);font-size:13px;font-weight:600;font-family:Inter,sans-serif;cursor:pointer;transition:all var(--t-base);text-decoration:none}.syllabus-dl-btn:hover{background:var(--gold);color:#fff;border-color:var(--gold)}.legal-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:36px;margin-bottom:40px;max-width:800px}.legal-wrap h2{font-size:19px;color:var(--navy);margin:26px 0 9px}.legal-wrap h2:first-child{margin-top:0}.legal-wrap p{color:var(--text-3);font-size:14px;line-height:1.75;margin-bottom:11px}.legal-wrap ul{color:var(--text-3);font-size:14px;line-height:1.75;padding-left:20px;margin-bottom:11px}.legal-wrap li{margin-bottom:5px}.legal-wrap a{color:var(--gold-dim)}.modal-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;z-index:600;display:flex;align-items:center;justify-content:center;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-box{background:var(--surface);border-radius:var(--r-xl);border:1px solid var(--border);padding:28px;max-width:540px;width:100%;box-shadow:var(--shadow-xl);max-height:90vh;overflow-y:auto;animation:modalIn .18s ease}@keyframes modalIn{0%{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:none}}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:14px}.modal-title{font-family:"DM Serif Display",serif;font-size:22px;color:var(--navy)}.modal-close{width:30px;height:30px;border:1px solid var(--border);border-radius:var(--r-sm);background:transparent;cursor:pointer;color:var(--text-3);font-size:18px;display:flex;align-items:center;justify-content:center;transition:all var(--t-fast);flex-shrink:0;line-height:1}.modal-close:hover{background:var(--surface2);color:var(--text)}.form-group{margin-bottom:14px}.form-label{font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:5px;display:block;text-transform:uppercase;letter-spacing:.5px}.form-input,.form-select,.form-textarea{width:100%;padding:10px 13px;border:1.5px solid var(--border);border-radius:var(--r-md);font-size:14px;font-family:Inter,sans-serif;background:var(--surface2);color:var(--text);outline:none;transition:border-color var(--t-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--gold)}.form-textarea{resize:vertical;min-height:90px}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}.tool-card-head{padding:20px;display:flex;align-items:center;gap:14px}.tool-icon{width:44px;height:44px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:20px}.tool-body{padding:0 20px 20px}.tool-result{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r-md);padding:16px 18px;margin-top:14px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.tool-result-label{font-size:12px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px}.tool-result-value{font-family:"DM Serif Display",serif;font-size:32px;color:var(--gold-dim);line-height:1}.pattern-pill{display:inline-flex;align-items:center;background:var(--surface2);border:1px solid var(--border);border-radius:30px;padding:3px;gap:2px}.pattern-opt{padding:5px 14px;border-radius:24px;font-size:12px;font-weight:600;cursor:pointer;transition:all var(--t-base);border:none;font-family:Inter,sans-serif;color:var(--text-3);background:none}.pattern-opt.active{background:#0a1628;color:#fff}[data-theme=dark] .pattern-opt.active{background:var(--gold);color:#111}.news-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 18px;display:flex;align-items:flex-start;gap:14px;transition:all var(--t-base);cursor:pointer}.news-card:hover{border-color:var(--gold-dim);box-shadow:var(--shadow-md)}.news-dot{width:8px;height:8px;border-radius:50%;background:var(--gold);flex-shrink:0;margin-top:6px}.result-cta{background:linear-gradient(135deg,#0a1628,#1d3461);border-radius:var(--r-lg);padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid rgba(255,255,255,.06)}[data-theme=dark] .result-cta{border-color:var(--border)}@keyframes fadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:fadeUp .35s ease both}.fade-up-1{animation-delay:.05s}.fade-up-2{animation-delay:.1s}.fade-up-3{animation-delay:.15s}.fade-up-4{animation-delay:.2s}.fade-up-5{animation-delay:.25s}@media (max-width: 640px){.page-wrap{padding:0 16px 80px}.container{padding:0 16px}body{padding-bottom:64px}}