:root{--bg: #F7F7F4;--bg-subtle: #F0F4F8;--surface: #FFFFFF;--surface-elevated: #FFFFFF;--text-primary: #17222D;--text-muted: #5F6B76;--text-subtle: #8794A1;--border: #DCE2E7;--border-light: #EDF1F5;--border-focus: #173B57;--primary: #173B57;--primary-hover: #0F2A3F;--primary-light: #EBF2F7;--accent: #C47B36;--accent-hover: #AD6827;--accent-light: #FDF4EB;--accent-gold: #F2C18D;--success: #276749;--success-light: #EBF8F1;--warning: #975A16;--warning-light: #FEF7ED;--danger: #9B2C2C;--danger-light: #FFF5F5;--radius-xs: 4px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 2px 4px rgba(15, 23, 42, .05), 0 1px 2px rgba(15, 23, 42, .03);--shadow-md: 0 6px 16px -2px rgba(23, 59, 87, .08), 0 2px 6px -1px rgba(23, 59, 87, .04);--shadow-lg: 0 16px 32px -4px rgba(23, 59, 87, .12), 0 4px 12px -2px rgba(23, 59, 87, .06);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Noto Sans Tamil"}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text-primary);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}button,input,select,textarea{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;background:none;touch-action:manipulation}a{color:inherit;text-decoration:none}.app-container{display:flex;flex-direction:column;min-height:100vh;position:relative}.main-content{flex:1;max-width:1140px;width:100%;margin:0 auto;padding:2rem 1.25rem 5rem}.enterprise-header{background:#ffffffe0;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:200;transition:all .2s ease}.header-container{max-width:1140px;margin:0 auto;padding:.75rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.5rem;box-shadow:var(--shadow-xs);transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s ease,border-color .2s ease}.card-elevated{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-md)}.card-interactive:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cbd5e1}.section-contrast{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin:0 -1.25rem;padding:4rem 1.25rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;font-size:.92rem;border-radius:var(--radius-sm);padding:.65rem 1.25rem;min-height:44px;transition:all .18s cubic-bezier(.16,1,.3,1);-webkit-user-select:none;user-select:none;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px #173b5733}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border);box-shadow:var(--shadow-xs)}.btn-secondary:hover{background:var(--bg-subtle);border-color:var(--text-muted)}.btn-accent{background:var(--accent);color:#fff;box-shadow:0 2px 4px #c47b3640}.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn-danger{background:var(--danger-light);color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.badge{display:inline-flex;align-items:center;gap:.3rem;font-size:.72rem;font-weight:700;padding:.25rem .65rem;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.05em;border:1px solid transparent}.badge-primary{background:var(--primary-light);color:var(--primary);border-color:#173b5726}.badge-accent{background:var(--accent-light);color:var(--accent);border-color:#c47b3633}.badge-success{background:var(--success-light);color:var(--success);border-color:#27674933}.badge-warning{background:var(--warning-light);color:var(--warning);border-color:#975a1633}.badge-danger{background:var(--danger-light);color:var(--danger);border-color:#9b2c2c33}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.bento-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.bento-card-wide{grid-column:span 2}.bento-card-tall{grid-row:span 2}.dashboard-workspace-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(280px,1fr);gap:1.5rem;align-items:start}.comparison-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--surface)}.comparison-table th{padding:1rem 1.25rem;font-weight:700;font-size:.92rem;text-align:left;border-bottom:2px solid var(--border);background:var(--bg-subtle)}.comparison-table td{padding:1rem 1.25rem;font-size:.88rem;border-bottom:1px solid var(--border-light);vertical-align:top}.comparison-table tr:last-child td{border-bottom:none}.segmented-control{display:inline-flex;padding:.25rem;background:var(--bg-subtle);border-radius:var(--radius-sm);border:1px solid var(--border);gap:.25rem}.segmented-control-btn{padding:.45rem 1rem;font-size:.85rem;font-weight:600;border-radius:var(--radius-xs);transition:all .15s ease;color:var(--text-muted)}.segmented-control-btn.active{background:var(--surface);color:var(--primary);box-shadow:var(--shadow-xs)}.subject-mastery-card{display:flex;flex-direction:column;justify-content:space-between;padding:1.15rem;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);transition:all .2s ease}.subject-mastery-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:var(--primary)}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;align-items:stretch}.pricing-card{display:flex;flex-direction:column;justify-content:space-between;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2.25rem 1.75rem;box-shadow:var(--shadow-xs);position:relative;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s ease,border-color .2s ease}.pricing-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cbd5e1}.pricing-card-featured{border:2px solid var(--accent);box-shadow:var(--shadow-md);background:#fff}.pricing-card-featured:hover{box-shadow:var(--shadow-lg);border-color:var(--accent)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:1rem;z-index:1000;animation:fadeIn .15s ease-out}.modal-content{background:var(--surface);border-radius:var(--radius-lg);max-width:540px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);border:1px solid var(--border);animation:scaleUp .18s cubic-bezier(.16,1,.3,1)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.desktop-only{display:block}.mobile-only{display:none}@media (max-width: 768px){.desktop-only{display:none!important}.mobile-only{display:flex!important}.hide-mobile{display:none!important}.main-content{padding:1.25rem 1rem 5.5rem}.card{padding:1.15rem}.card-elevated{padding:1.25rem}.section-contrast{padding:2.5rem 1rem;margin:0 -1rem}.test-layout-grid,.bento-grid{grid-template-columns:1fr!important}.bento-card-wide,.bento-card-tall{grid-column:span 1!important;grid-row:span 1!important}.dashboard-workspace-grid{grid-template-columns:1fr!important}.test-layout-grid>div:last-child:not(.mobile-palette-open){display:none}.app-footer{padding-bottom:calc(1.75rem + 65px)!important}.mobile-bottom-nav{display:flex!important;position:fixed;bottom:0;left:0;right:0;height:60px;background:#fffffff0;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border);justify-content:space-around;align-items:center;z-index:150;padding:0 .5rem}.mobile-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--text-muted);font-size:.68rem;font-weight:600;padding:.25rem .5rem;border-radius:var(--radius-sm);min-width:52px}.mobile-nav-item.active{color:var(--primary)}.mobile-nav-item.active svg{stroke-width:2.5}}@media (min-width: 769px){.mobile-bottom-nav{display:none!important}}@media print{header,footer,.mobile-bottom-nav,.no-print,button{display:none!important}body,.main-content{background:#fff!important;color:#000!important;max-width:100%!important;padding:0!important}.card,.card-elevated{border:1px solid #DDD!important;box-shadow:none!important}}