.navigation{background:var(--color-surface);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);box-shadow:var(--shadow-md);padding:var(--space-6) 0;border-bottom:3px solid var(--color-primary-500)}.nav-container{max-width:var(--container-max-width);margin:0 auto;padding:0 var(--space-8);display:flex;justify-content:space-between;align-items:center;gap:var(--space-8)}.nav-logo{font-size:var(--text-3xl);font-weight:var(--font-weight-bold);color:var(--color-primary-500);text-decoration:none;transition:var(--transition-base);cursor:pointer;text-shadow:0 1px 2px rgba(255,255,255,.5)}.nav-logo:hover{color:var(--color-primary-600);transform:translateY(-1px)}.nav-links{display:flex;gap:var(--space-5);align-items:center}.nav-link{text-decoration:none;color:var(--color-text-primary);font-weight:var(--font-weight-semibold);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);transition:var(--transition-base);position:relative;font-size:var(--text-base)}.nav-link:hover{background:var(--color-primary-50);color:var(--color-primary-500)}.nav-link.active{background:var(--color-primary-500);color:#fff;box-shadow:var(--shadow-md)}.nav-right{display:flex;align-items:center;gap:var(--space-4)}.hamburger{display:none;flex-direction:column;justify-content:space-around;width:32px;height:32px;background:transparent;border:none;cursor:pointer;padding:0;z-index:var(--z-index-dropdown);position:relative}.hamburger span{width:100%;height:3px;background:var(--color-primary-500);border-radius:10px;transition:all .3s ease;transform-origin:center}.hamburger.active span:nth-child(1){transform:translateY(9px) rotate(45deg)}.hamburger.active span:nth-child(2){opacity:0;transform:translate(-20px)}.hamburger.active span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:var(--z-index-modal-backdrop);animation:fadeIn .3s ease}.mobile-menu{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--color-surface);box-shadow:var(--shadow-2xl);z-index:var(--z-index-modal);transition:right .3s ease;display:flex;flex-direction:column;padding:var(--space-6);overflow-y:auto}.mobile-menu.open{right:0}.mobile-menu-header{padding-bottom:var(--space-6);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-6)}.mobile-menu-links{display:flex;flex-direction:column;gap:var(--space-2)}.mobile-nav-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-lg);text-decoration:none;color:var(--color-text-primary);font-size:var(--text-lg);font-weight:var(--font-weight-medium);transition:var(--transition-base);min-height:56px}.mobile-nav-link:hover{background:var(--color-primary-50);color:var(--color-primary-500)}.mobile-nav-link.active{background:var(--color-primary-500);color:#fff;box-shadow:var(--shadow-md)}.mobile-nav-icon{font-size:1.5rem;line-height:1;flex-shrink:0}.desktop-only{display:flex}@media (max-width: 768px){.nav-container{gap:var(--space-4)}.desktop-only{display:none!important}.hamburger{display:flex}.mobile-menu-overlay{display:block}.nav-logo{font-size:var(--text-2xl);margin-left:0}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-family:var(--font-sans);font-weight:var(--font-weight-medium);border:none;border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;-webkit-user-select:none;user-select:none;position:relative;text-decoration:none;outline:none}.btn:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}.btn:active{transform:scale(.98)}.btn-sm{height:var(--button-height-sm);padding:0 var(--button-padding-x-sm);font-size:var(--text-sm)}.btn-md{height:var(--button-height-base);padding:0 var(--button-padding-x-base);font-size:var(--text-base)}.btn-lg{height:var(--button-height-lg);padding:0 var(--button-padding-x-lg);font-size:var(--text-lg)}.btn-xl{height:var(--button-height-xl);padding:0 var(--button-padding-x-xl);font-size:var(--text-xl);font-weight:var(--font-weight-semibold)}.btn-primary{background:var(--color-primary-500);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--color-primary-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:active:not(:disabled){background:var(--color-primary-700)}.btn-secondary{background:var(--color-gray-100);color:var(--color-text-primary);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background:var(--color-gray-200);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary:active:not(:disabled){background:var(--color-gray-300)}.btn-outline{background:transparent;color:var(--color-primary-500);border:var(--border-width-base) solid var(--color-primary-500)}.btn-outline:hover:not(:disabled){background:var(--color-primary-50);border-color:var(--color-primary-600)}.btn-outline:active:not(:disabled){background:var(--color-primary-100)}.btn-danger{background:var(--color-danger-500);color:#fff;box-shadow:var(--shadow-sm)}.btn-danger:hover:not(:disabled){background:var(--color-danger-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-danger:active:not(:disabled){background:var(--color-danger-700)}.btn-success{background:var(--color-success-500);color:#fff;box-shadow:var(--shadow-sm)}.btn-success:hover:not(:disabled){background:var(--color-success-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-success:active:not(:disabled){background:var(--color-success-700)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-gray-100);color:var(--color-text-primary)}.btn-ghost:active:not(:disabled){background:var(--color-gray-200)}.btn-link{background:transparent;color:var(--color-primary-500);padding:0;height:auto}.btn-link:hover:not(:disabled){color:var(--color-primary-600);text-decoration:underline}.btn:disabled,.btn-disabled{opacity:.5;cursor:not-allowed;pointer-events:none;filter:saturate(.6)}.btn-primary:disabled,.btn-primary.btn-disabled{background:var(--color-gray-400);color:var(--color-gray-600);opacity:1;box-shadow:none}.btn-loading{cursor:wait;pointer-events:none}.btn-loading .btn-text{opacity:0}.btn-full-width{width:100%}.btn-spinner{position:absolute;display:flex;align-items:center;justify-content:center}.btn-spinner-icon{width:20px;height:20px;animation:spin 1s linear infinite}.btn-spinner-circle{stroke:currentColor;stroke-linecap:round;stroke-dasharray:50;stroke-dashoffset:0;animation:spinCircle 1.5s ease-in-out infinite}@keyframes spinCircle{0%{stroke-dashoffset:50}50%{stroke-dashoffset:12.5}to{stroke-dashoffset:50}}.btn-icon{display:inline-flex;align-items:center;justify-content:center}.btn-icon-left{margin-left:calc(var(--space-1) * -1)}.btn-icon-right{margin-right:calc(var(--space-1) * -1)}.btn-icon svg{width:20px;height:20px}.btn-sm .btn-icon svg{width:16px;height:16px}.btn-lg .btn-icon svg{width:24px;height:24px}.btn-group{display:inline-flex;gap:var(--space-2)}.btn-group .btn:not(:last-child){margin-right:var(--space-2)}@media (max-width: 768px){.btn{min-height:44px}.btn-sm{height:40px}.btn-lg{height:52px}}.google-auth{display:flex;flex-direction:row;align-items:center;gap:10px}.google-sign-in{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#fff;border:1px solid #dadce0;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;color:#3c4043;transition:all .3s;box-shadow:0 2px 4px #0000001a}.google-sign-in:hover{box-shadow:0 4px 8px #00000026;background:#f8f9fa}.google-icon{width:18px;height:18px}.google-sign-out{padding:8px 16px;background:#fff3;color:#fff;border:2px solid white;border-radius:8px;cursor:pointer;font-size:14px;transition:all .3s}.google-sign-out:hover{background:#fff;color:#0d5eaf}.user-info{display:flex;align-items:center;gap:12px;color:#fff}.user-avatar{width:32px;height:32px;border-radius:50%;border:2px solid white}.user-name{font-size:16px;font-weight:500}.auth-note{font-size:14px;color:#fffc;text-align:center;margin:0}@media (max-width: 768px){.google-sign-in{padding:6px 12px;font-size:13px;gap:6px}.google-icon{width:16px;height:16px}}.google-auth.compact{display:flex;align-items:center;gap:10px}.user-avatar{width:32px;height:32px;border-radius:50%;box-shadow:0 2px 4px #0000001a}.google-sign-out.compact{padding:4px 8px;font-size:12px;background:#f44336;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background .3s}.google-sign-out.compact:hover{background:#d32f2f}.card{background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-base);transition:all var(--transition-base);position:relative;overflow:hidden}.card-default{background:#fff;border:var(--border-width-thin) solid var(--color-border)}.card-elevated{background:#fff;box-shadow:var(--shadow-lg);border:none}.card-outlined{background:#fff;border:var(--border-width-thick) solid var(--color-primary-500);box-shadow:var(--shadow-sm)}.card-glass{background:var(--glass-background);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:var(--border-width-thin) solid var(--glass-border);box-shadow:var(--shadow-glass)}.card-gradient{background:var(--gradient-card);box-shadow:var(--shadow-lg);border:none}.card-padding-none{padding:0}.card-padding-sm{padding:var(--card-padding-sm)}.card-padding-md{padding:var(--card-padding-base)}.card-padding-lg{padding:var(--card-padding-lg)}.card-hoverable:hover{box-shadow:var(--shadow-xl);transform:translateY(-4px)}.card-clickable{cursor:pointer;-webkit-user-select:none;user-select:none}.card-clickable:active{transform:scale(.98)}.card:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}.card-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding-bottom:var(--space-4);border-bottom:var(--border-width-thin) solid var(--color-divider);margin-bottom:var(--space-4)}.card-header:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.card-body{flex:1}.card-footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-3);padding-top:var(--space-4);border-top:var(--border-width-thin) solid var(--color-divider);margin-top:var(--space-4)}.card-footer:first-child{margin-top:0;padding-top:0;border-top:none}.card-title{font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0;line-height:var(--leading-tight)}.card-description{font-size:var(--text-sm);color:var(--color-text-secondary);margin:var(--space-2) 0 0 0;line-height:var(--leading-normal)}.card:not(.card-padding-none) .card-header,.card:not(.card-padding-none) .card-body,.card:not(.card-padding-none) .card-footer{padding-left:0;padding-right:0}.card.card-padding-none .card-header{padding:var(--card-padding-base);padding-bottom:var(--space-4)}.card.card-padding-none .card-body{padding:0 var(--card-padding-base)}.card.card-padding-none .card-footer{padding:var(--space-4) var(--card-padding-base) var(--card-padding-base)}.card.animate-in{animation:fadeInUp .4s cubic-bezier(.4,0,.2,1)}.card.animate-scale-in{animation:scaleIn .3s cubic-bezier(.34,1.56,.64,1)}@media (max-width: 768px){.card{border-radius:var(--radius-lg)}.card-padding-sm{padding:var(--space-3)}.card-padding-md{padding:var(--space-4)}.card-padding-lg{padding:var(--space-6)}.card-title{font-size:var(--text-lg)}.card-header,.card-footer{gap:var(--space-2)}}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-6)}@media (max-width: 768px){.card-grid{grid-template-columns:1fr;gap:var(--space-4)}}.card-selected{border-color:var(--color-primary-500);box-shadow:var(--shadow-primary)}.card-disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.card-loading{position:relative}.card-loading:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.5) 50%,transparent 100%);animation:shimmer 2s linear infinite;pointer-events:none}.landing{display:flex;flex-direction:column;align-items:center;text-align:center;padding:var(--space-8) var(--space-5);position:relative;min-height:calc(100vh - 80px);margin:calc(-1 * var(--space-5));margin-bottom:calc(-1 * var(--space-20))}.landing-content{max-width:var(--container-max-width);width:100%;animation:fadeInUp .8s ease-out;position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-16)}.hero-section{display:flex;flex-direction:column;align-items:center;gap:var(--space-6);padding:var(--space-16) 0;max-width:900px}.landing-title{font-size:clamp(3rem,8vw,5rem);font-weight:var(--font-weight-bold);color:#fff;margin:0;text-shadow:0 4px 12px rgba(0,0,0,.3);letter-spacing:2px;animation:fadeInUp .6s ease-out}.landing-subtitle{font-size:clamp(1.5rem,4vw,2.5rem);color:#fffffff2;margin:0;font-weight:var(--font-weight-medium);text-shadow:0 2px 8px rgba(0,0,0,.2);animation:fadeInUp .7s ease-out}.landing-description{font-size:clamp(1rem,2.5vw,1.25rem);color:#ffffffd9;margin:0;line-height:var(--leading-relaxed);text-shadow:0 2px 8px rgba(0,0,0,.2);max-width:600px;animation:fadeInUp .8s ease-out}.cta-buttons{display:flex;gap:var(--space-4);margin-top:var(--space-4);animation:fadeInUp .9s ease-out}.cta-buttons a{text-decoration:none}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6);width:100%;padding:var(--space-8) 0}.feature-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--space-4);transition:var(--transition-base)}.feature-card:hover{transform:translateY(-8px)}.feature-icon{font-size:3rem;line-height:1}.feature-title{font-size:var(--text-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0}.feature-description{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed);margin:0}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.landing{padding:var(--space-6) var(--space-4)}.hero-section{padding:var(--space-8) 0;gap:var(--space-4)}.landing-content{gap:var(--space-12)}.cta-buttons{flex-direction:column;width:100%;max-width:300px}.cta-buttons button{width:100%}.features-grid{grid-template-columns:1fr;gap:var(--space-4);padding:var(--space-6) 0}.feature-card:hover{transform:translateY(-4px)}}.app{min-height:100vh;display:flex;flex-direction:column;position:relative}.main-content{flex:1;padding:20px 20px 300px;max-width:1200px;width:100%;margin:0 auto;position:relative;z-index:2;min-height:80vh}@media (max-width: 768px){.main-content{padding:15px 15px 200px;min-height:70vh}}:root{--color-primary-50: #e8f4ff;--color-primary-100: #d4e9ff;--color-primary-200: #b0d7ff;--color-primary-300: #7ab8ff;--color-primary-400: #3d8fff;--color-primary-500: #0D5EAF;--color-primary-600: #0a4d92;--color-primary-700: #083d75;--color-primary-800: #062f5c;--color-primary-900: #042343;--color-secondary-500: #005BAE;--color-accent-purple: #667eea;--color-accent-gold: #f5a623;--color-success-50: #f0fdf4;--color-success-100: #dcfce7;--color-success-500: #22c55e;--color-success-600: #16a34a;--color-success-700: #15803d;--color-warning-50: #fffbeb;--color-warning-100: #fef3c7;--color-warning-500: #f59e0b;--color-warning-600: #d97706;--color-danger-50: #fef2f2;--color-danger-100: #fee2e2;--color-danger-500: #ef4444;--color-danger-600: #dc2626;--color-danger-700: #b91c1c;--color-info-500: #3b82f6;--color-info-600: #2563eb;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-400: #9ca3af;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--color-background: #ffffff;--color-surface: #ffffff;--color-text-primary: #111827;--color-text-secondary: #6b7280;--color-text-tertiary: #9ca3af;--color-border: #e5e7eb;--color-divider: #f3f4f6;--color-overlay: rgba(0, 0, 0, .5);--color-overlay-light: rgba(0, 0, 0, .3);--gradient-primary: linear-gradient(135deg, #0D5EAF 0%, #005BAE 50%, #0D5EAF 100%);--gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .05));--gradient-card: linear-gradient(145deg, rgba(255, 255, 255, .9), rgba(255, 255, 255, .95));--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-mono: "SF Mono", "Monaco", "Inconsolata", "Fira Code", monospace;--text-xs: clamp(.75rem, .7rem + .2vw, .875rem);--text-sm: clamp(.875rem, .8rem + .3vw, 1rem);--text-base: clamp(1rem, .95rem + .3vw, 1.125rem);--text-lg: clamp(1.125rem, 1rem + .5vw, 1.25rem);--text-xl: clamp(1.25rem, 1.1rem + .6vw, 1.5rem);--text-2xl: clamp(1.5rem, 1.3rem + .8vw, 1.875rem);--text-3xl: clamp(1.875rem, 1.6rem + 1vw, 2.25rem);--text-4xl: clamp(2.25rem, 2rem + 1.2vw, 3rem);--text-5xl: clamp(3rem, 2.5rem + 2vw, 4rem);--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--font-weight-extrabold: 800;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--leading-loose: 2;--tracking-tighter: -.05em;--tracking-tight: -.025em;--tracking-normal: 0;--tracking-wide: .025em;--tracking-wider: .05em;--tracking-widest: .1em;--radius-sm: .25rem;--radius-base: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.25rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-base: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, .05);--shadow-primary: 0 10px 25px -5px rgba(13, 94, 175, .3);--shadow-success: 0 10px 25px -5px rgba(34, 197, 94, .3);--shadow-danger: 0 10px 25px -5px rgba(239, 68, 68, .3);--shadow-glass: 0 8px 32px 0 rgba(13, 94, 175, .15);--border-width-thin: 1px;--border-width-base: 2px;--border-width-thick: 3px;--border-width-heavy: 4px;--border-style: solid;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--transition-slower: .5s cubic-bezier(.4, 0, .2, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--ease-bounce: cubic-bezier(.68, -.55, .265, 1.55);--z-base: 0;--z-dropdown: 100;--z-sticky: 200;--z-fixed: 300;--z-modal-backdrop: 400;--z-modal: 500;--z-popover: 600;--z-tooltip: 700;--z-notification: 800;--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px;--breakpoint-2xl: 1536px;--glass-background: rgba(255, 255, 255, .7);--glass-background-dark: rgba(255, 255, 255, .5);--glass-border: rgba(255, 255, 255, .18);--glass-blur: blur(12px);--button-height-sm: 2.75rem;--button-height-base: 3rem;--button-height-lg: 3.5rem;--button-height-xl: 4rem;--button-padding-x-sm: var(--space-3);--button-padding-x-base: var(--space-4);--button-padding-x-lg: var(--space-6);--button-padding-x-xl: var(--space-8);--card-padding-sm: var(--space-4);--card-padding-base: var(--space-6);--card-padding-lg: var(--space-8);--input-height-sm: 2rem;--input-height-base: 2.75rem;--input-height-lg: 3.5rem;--modal-width-sm: 400px;--modal-width-base: 500px;--modal-width-lg: 700px;--modal-width-xl: 900px;--nav-height: 70px;--nav-height-mobile: 60px}@media (prefers-color-scheme: dark){:root{--color-background: #0f172a;--color-surface: #1e293b;--color-text-primary: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-tertiary: #94a3b8;--color-border: #334155;--color-divider: #1e293b;--glass-background: rgba(30, 41, 59, .7);--glass-background-dark: rgba(30, 41, 59, 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