:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #dbeafe;--color-secondary: #7c3aed;--color-secondary-light: #ede9fe;--color-success: #16a34a;--color-success-light: #dcfce7;--color-warning: #d97706;--color-warning-light: #fef3c7;--color-danger: #dc2626;--color-danger-light: #fee2e2;--color-bg: #f8fafc;--color-surface: #ffffff;--color-surface-2: #f1f5f9;--color-border: #e2e8f0;--color-border-hover: #cbd5e1;--color-text: #0f172a;--color-text-muted: #64748b;--color-text-light: #94a3b8;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-serif: "DM Serif Display", Georgia, serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--shadow-lg: 0 8px 32px rgba(0,0,0,.12);--focus-ring: 0 0 0 3px var(--color-primary-light);--touch-target-min: 44px;--transition: .15s ease}@media (prefers-color-scheme: dark){:root{--color-bg: #0f172a;--color-surface: #1e293b;--color-surface-2: #334155;--color-border: #334155;--color-border-hover: #475569;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-text-light: #64748b}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);font-size:var(--font-size-base);color:var(--color-text);background:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition)}a:hover{text-decoration:underline}a:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-sm)}img,svg{display:block;max-width:100%}button{font-family:inherit;cursor:pointer;border:none;background:none}button:focus-visible{outline:none;box-shadow:var(--focus-ring)}input,select,textarea{font-family:inherit;font-size:inherit}input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--focus-ring)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--space-6)}.container-sm{width:100%;max-width:480px;margin:0 auto;padding:0 var(--space-6)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:600;transition:all var(--transition);cursor:pointer;border:none;white-space:nowrap;min-height:var(--touch-target-min)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-surface-2)}.btn-ghost{background:transparent;color:var(--color-text-muted)}.btn-ghost:hover:not(:disabled){background:var(--color-surface-2);color:var(--color-text)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){opacity:.9}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-base);border-radius:var(--radius-lg)}.btn-sm{padding:var(--space-2) var(--space-3);font-size:var(--font-size-xs)}.btn-full{width:100%}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text)}.form-label span{color:var(--color-danger);margin-left:2px}.form-input{padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font-size:var(--font-size-sm);transition:border-color var(--transition);width:100%;min-height:var(--touch-target-min)}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--focus-ring)}.form-input::placeholder{color:var(--color-text-light)}.form-input:disabled{background:var(--color-surface-2);opacity:.7}.form-error{font-size:var(--font-size-xs);color:var(--color-danger)}.form-hint{font-size:var(--font-size-xs);color:var(--color-text-muted)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm)}.badge{display:inline-flex;align-items:center;padding:2px var(--space-2);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600}.badge-blue{background:var(--color-primary-light);color:var(--color-primary)}.badge-green{background:var(--color-success-light);color:var(--color-success)}.badge-yellow{background:var(--color-warning-light);color:var(--color-warning)}.badge-red{background:var(--color-danger-light);color:var(--color-danger)}.badge-purple{background:var(--color-secondary-light);color:var(--color-secondary)}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mb-4{margin-bottom:var(--space-4)}.text-muted{color:var(--color-text-muted)}.text-sm{font-size:var(--font-size-sm)}.text-center{text-align:center}.font-semibold{font-weight:600}.w-full{width:100%}.spinner{width:24px;height:24px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg)}.page-transition-enter{animation:fadeIn .3s ease-out forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.page-transition-enter{animation:none}}.progress-bar{height:8px;background:var(--color-border);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width .5s ease}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-border-hover)}.divider{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-muted);font-size:var(--font-size-sm)}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.app-shell{display:flex;min-height:100vh;background:var(--color-bg)}.app-sidebar{width:240px;min-height:100vh;background:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;padding:20px 12px;position:sticky;top:0;height:100vh;overflow-y:auto;flex-shrink:0}.app-mobile-nav{display:none;position:fixed;bottom:0;left:0;right:0;min-height:calc(var(--touch-target-min) + 16px);padding-bottom:env(safe-area-inset-bottom);background:var(--color-surface);border-top:1px solid var(--color-border);z-index:100;overflow:hidden}.app-main{flex:1;padding:32px;overflow-x:hidden;max-width:900px}@media (max-width: 768px){.app-sidebar{display:none}.app-mobile-nav{display:flex}.app-main{padding:16px 16px 76px;max-width:100%}}.grid-2col{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 640px){.grid-2col{grid-template-columns:1fr}}@keyframes shimmer{0%{background-position:-600px 0}to{background-position:600px 0}}.skeleton{background:linear-gradient(90deg,var(--color-surface-2) 25%,var(--color-border) 50%,var(--color-surface-2) 75%);background-size:600px 100%;animation:shimmer 1.4s infinite linear;border-radius:var(--radius-sm)}@media (prefers-reduced-motion: reduce){.skeleton{animation:none;background:var(--color-surface-2)}}@media (max-width: 480px){.toast-container-mobile{left:12px!important;right:12px!important;bottom:72px!important}}.landing-nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}.landing-nav-links{display:flex;align-items:center;gap:12px}.landing-nav-link{color:var(--color-text-muted);font-size:.875rem;text-decoration:none}@media (max-width: 640px){.landing-nav-inner{flex-wrap:wrap;justify-content:center;gap:16px}.landing-nav-links{flex-wrap:wrap;justify-content:center}}.landing-dashboard-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}@media (max-width: 640px){.landing-dashboard-stats{grid-template-columns:repeat(2,1fr)}}.landing-hero-dashboard{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:24px;max-width:640px;margin:0 auto;box-shadow:var(--shadow-lg);overflow:hidden}@media (max-width: 640px){.landing-hero-dashboard{padding:16px;border-radius:var(--radius-lg)}}.landing-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}@media (max-width: 640px){.landing-feature-grid{grid-template-columns:1fr}}.landing-hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}@media (max-width: 640px){.landing-hero-ctas{flex-direction:column;align-items:stretch}}.landing-nav{position:sticky;top:0;z-index:100;background:#f8fafce6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border)}.landing-nav-container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--space-6)}