:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-primary-light: #818cf8;--color-primary-50: rgba(99, 102, 241, .05);--color-primary-100: rgba(99, 102, 241, .1);--color-secondary: #1e1b4b;--color-accent: #a78bfa;--color-white: #ffffff;--color-black: #000000;--color-gray-50: #fafafa;--color-gray-100: #f4f4f5;--color-gray-200: #e4e4e7;--color-gray-300: #d4d4d8;--color-gray-400: #a1a1aa;--color-gray-500: #71717a;--color-gray-600: #52525b;--color-gray-700: #3f3f46;--color-gray-800: #27272a;--color-gray-900: #18181b;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-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;--font-size-5xl: 3rem;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--spacing-4xl: 6rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-xs: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / .25);--shadow-primary: 0 4px 14px 0 rgba(99, 102, 241, .39);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--transition-slower: .5s cubic-bezier(.4, 0, .2, 1);--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--z-popover: 1060;--z-tooltip: 1070;--bg-primary: var(--color-white);--bg-secondary: var(--color-gray-50);--bg-tertiary: var(--color-gray-100);--bg-elevated: var(--color-white);--bg-nav: rgba(255, 255, 255, .85);--bg-overlay: rgba(0, 0, 0, .5);--text-primary: var(--color-gray-900);--text-secondary: var(--color-gray-700);--text-tertiary: var(--color-gray-500);--text-muted: var(--color-gray-400);--text-inverse: var(--color-white);--border-default: var(--color-gray-200);--border-light: var(--color-gray-100);--border-strong: var(--color-gray-300);--surface-default: var(--color-white);--surface-raised: var(--color-white);--surface-sunken: var(--color-gray-50);--hover-bg: var(--color-gray-50);--active-bg: var(--color-gray-100);--scrollbar-track: var(--color-gray-100);--scrollbar-thumb: var(--color-gray-300);--scrollbar-thumb-hover: var(--color-gray-400);--input-bg: var(--color-white);--input-border: var(--color-gray-200);--input-border-hover: var(--color-gray-300)}[data-theme=dark]{--bg-primary: var(--color-gray-900);--bg-secondary: var(--color-gray-800);--bg-tertiary: var(--color-gray-700);--bg-elevated: var(--color-gray-800);--bg-nav: rgba(24, 24, 27, .85);--bg-overlay: rgba(0, 0, 0, .7);--text-primary: var(--color-gray-50);--text-secondary: var(--color-gray-200);--text-tertiary: var(--color-gray-400);--text-muted: var(--color-gray-500);--text-inverse: var(--color-gray-900);--border-default: var(--color-gray-700);--border-light: var(--color-gray-700);--border-strong: var(--color-gray-600);--surface-default: var(--color-gray-800);--surface-raised: var(--color-gray-700);--surface-sunken: var(--color-gray-900);--hover-bg: var(--color-gray-700);--active-bg: var(--color-gray-600);--scrollbar-track: var(--color-gray-800);--scrollbar-thumb: var(--color-gray-600);--scrollbar-thumb-hover: var(--color-gray-500);--input-bg: var(--color-gray-800);--input-border: var(--color-gray-700);--input-border-hover: var(--color-gray-600);--color-primary-50: rgba(99, 102, 241, .1);--color-primary-100: rgba(99, 102, 241, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--text-secondary);background-color:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;transition:background-color var(--transition-base),color var(--transition-base)}#root{min-height:100vh}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none}ul,ol{list-style:none}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}::selection{background-color:var(--color-primary-100);color:var(--color-primary-dark)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.pwa-banner{position:fixed;bottom:0;left:0;right:0;z-index:var(--z-modal);display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);background:var(--surface-default);border-top:1px solid var(--border-default);box-shadow:0 -4px 20px #0000001f;animation:pwa-slide-up .35s ease-out}.pwa-banner-content{display:flex;align-items:center;gap:var(--spacing-md);min-width:0}.pwa-banner-icon{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);border-radius:var(--radius-lg);color:var(--color-white)}.pwa-banner-text{display:flex;flex-direction:column;gap:2px;min-width:0}.pwa-banner-text strong{font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary)}.pwa-banner-text span{font-size:var(--font-size-xs);color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pwa-banner-actions{display:flex;align-items:center;gap:var(--spacing-xs);flex-shrink:0}@keyframes pwa-slide-up{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@media(max-width:480px){.pwa-banner{flex-direction:column;gap:var(--spacing-sm);padding:var(--spacing-md)}.pwa-banner-actions{width:100%;justify-content:flex-end}}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.section{padding:var(--spacing-4xl) 0}.section-header{margin-bottom:var(--spacing-3xl)}.section-header.center{text-align:center}.section-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;color:var(--text-primary);line-height:1.2;letter-spacing:-.02em}.nav{position:fixed;top:0;left:0;right:0;z-index:var(--z-fixed);background:var(--bg-nav);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);transition:background-color var(--transition-base),border-color var(--transition-base)}.nav-container{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 var(--spacing-lg);max-width:1200px;margin:0 auto}.logo{display:flex;align-items:center;gap:var(--spacing-sm);font-size:var(--font-size-xl);font-weight:700;color:var(--text-primary);transition:opacity var(--transition-fast)}.logo:hover{opacity:.8}.logo-img{width:32px;height:32px;object-fit:contain}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);font-size:var(--font-size-sm);font-weight:600;padding:.625rem 1.25rem;border-radius:var(--radius-lg);transition:all var(--transition-base);cursor:pointer;border:none;text-decoration:none;color:inherit}.btn svg{color:inherit}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:var(--color-white);box-shadow:var(--shadow-primary)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #6366f173}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--surface-default);color:var(--text-secondary);border:1px solid var(--border-default)}.btn-secondary:hover:not(:disabled){background:var(--hover-bg);border-color:var(--border-strong)}.btn-ghost{background:transparent;color:var(--text-tertiary)}.btn-ghost:hover:not(:disabled){background:var(--hover-bg);color:var(--text-primary)}.btn-sm{padding:.5rem 1rem;font-size:var(--font-size-xs)}.btn-lg{padding:.875rem 1.75rem;font-size:var(--font-size-base)}.btn-full{width:100%}.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:calc(64px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);background:linear-gradient(180deg,var(--bg-secondary) 0%,var(--bg-primary) 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-30%;right:-15%;width:600px;height:600px;background:radial-gradient(circle,rgba(99,102,241,.12) 0%,transparent 70%);border-radius:50%;pointer-events:none}.hero:after{content:"";position:absolute;bottom:-40%;left:-25%;width:800px;height:800px;background:radial-gradient(circle,rgba(167,139,250,.08) 0%,transparent 70%);border-radius:50%;pointer-events:none}.hero-content{position:relative;z-index:1;max-width:680px;text-align:center}.hero h1{font-size:clamp(2rem,5vw,3.25rem);font-weight:800;color:var(--text-primary);line-height:1.15;letter-spacing:-.025em;margin-bottom:var(--spacing-lg)}.hero h1 .highlight{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:clamp(1rem,2vw,1.125rem);color:var(--text-tertiary);max-width:520px;margin:0 auto var(--spacing-xl);line-height:1.7}.hero-cta{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.hero-hint{font-size:var(--font-size-sm);color:var(--text-muted)}.hero-split{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:calc(64px + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-2xl)}.hero-content-split{position:relative;z-index:1;width:100%;max-width:1100px;display:flex;flex-direction:column;gap:var(--spacing-2xl);align-items:center}.hero-text-side{text-align:center;max-width:600px}.hero-text-side h1{font-size:clamp(1.75rem,4vw,2.75rem);font-weight:800;color:var(--text-primary);line-height:1.15;letter-spacing:-.025em;margin-bottom:var(--spacing-md)}.hero-features{display:flex;flex-direction:column;gap:var(--spacing-sm);align-items:center;margin-top:var(--spacing-lg)}.hero-feature{display:flex;align-items:center;gap:var(--spacing-sm);font-size:var(--font-size-sm);color:var(--text-secondary)}.hero-feature svg{color:var(--color-primary);flex-shrink:0}.hero-form-side{width:100%;max-width:400px}.home-login-card{background:var(--surface-default);border-radius:var(--radius-xl);padding:var(--spacing-xl);box-shadow:var(--shadow-xl);border:1px solid var(--border-light)}.home-login-header{text-align:center;margin-bottom:var(--spacing-lg)}.home-login-header h2{font-size:var(--font-size-xl);font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.home-login-header p{font-size:var(--font-size-sm);color:var(--text-tertiary)}.home-login-error{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-lg);color:var(--color-error);font-size:var(--font-size-sm);margin-bottom:var(--spacing-md)}.home-login-error svg{flex-shrink:0}.home-login-form{display:flex;flex-direction:column;gap:var(--spacing-md)}.home-form-field{display:flex;flex-direction:column;gap:6px}.home-form-field label{font-size:var(--font-size-sm);font-weight:500;color:var(--text-secondary)}.home-input-wrapper{position:relative;display:flex;align-items:center}.home-input-wrapper>svg:first-of-type{position:absolute;left:12px;color:var(--text-muted);pointer-events:none;transition:color var(--transition-fast)}.home-input-wrapper input{width:100%;padding:11px 12px 11px 40px;font-size:var(--font-size-sm);font-family:var(--font-family);color:var(--text-primary);background:var(--input-bg);border:1.5px solid var(--input-border);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.home-input-wrapper input::placeholder{color:var(--text-muted)}.home-input-wrapper input:hover{border-color:var(--input-border-hover)}.home-input-wrapper input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-100)}.home-input-wrapper:focus-within>svg:first-of-type{color:var(--color-primary)}.home-toggle-password{position:absolute;right:10px;padding:4px;color:var(--text-muted);transition:color var(--transition-fast);background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}.home-toggle-password:hover{color:var(--text-secondary)}.home-input-wrapper:has(.home-toggle-password) input{padding-right:40px}.home-login-footer{margin-top:var(--spacing-lg);text-align:center;font-size:var(--font-size-sm);color:var(--text-secondary)}.home-login-footer a{color:var(--color-primary);font-weight:600;transition:color var(--transition-fast)}.home-login-footer a:hover{color:var(--color-primary-dark)}.features{background:var(--bg-primary)}.features-grid{display:grid;gap:var(--spacing-lg);grid-template-columns:1fr}.feature-card{background:var(--bg-secondary);padding:var(--spacing-xl);border-radius:var(--radius-xl);transition:all var(--transition-slow);border:1px solid transparent}.feature-card:hover{background:var(--surface-default);border-color:var(--border-default);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.feature-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:var(--color-white);margin-bottom:var(--spacing-md);box-shadow:var(--shadow-primary)}.feature-card h3{font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.feature-card p{font-size:var(--font-size-sm);color:var(--text-tertiary);line-height:1.6}.usages{background:var(--bg-secondary)}.usages-grid{display:grid;gap:var(--spacing-md);grid-template-columns:repeat(2,1fr)}.usage-card{background:var(--surface-default);padding:var(--spacing-lg);border-radius:var(--radius-xl);text-align:center;transition:all var(--transition-slow);border:1px solid var(--border-light)}.usage-card:hover{border-color:var(--color-primary-light);box-shadow:var(--shadow-md),0 0 0 1px var(--color-primary-light);transform:translateY(-2px)}.usage-emoji{font-size:2rem;margin-bottom:var(--spacing-sm);display:block}.usage-card h3{font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.usage-card p{font-size:var(--font-size-xs);color:var(--text-tertiary);line-height:1.5;display:none}.quote{background:linear-gradient(135deg,var(--color-secondary) 0%,#312e81 100%);padding:var(--spacing-4xl) 0;position:relative;overflow:hidden}.quote:before{content:"";position:absolute;top:-60%;right:-25%;width:600px;height:600px;background:radial-gradient(circle,rgba(99,102,241,.15) 0%,transparent 70%);border-radius:50%}.quote-content{position:relative;z-index:1;text-align:center}.quote-content p{font-size:clamp(1.25rem,3vw,1.5rem);color:var(--color-gray-300);line-height:1.5;margin-bottom:var(--spacing-lg)}.quote .btn-primary{background:var(--color-white);color:var(--color-primary);box-shadow:var(--shadow-lg)}.quote .btn-primary:hover{background:var(--color-gray-100);box-shadow:var(--shadow-xl)}.footer{background:var(--color-gray-900);color:var(--text-muted);padding:var(--spacing-3xl) 0 var(--spacing-xl)}.footer-content{display:flex;flex-direction:column;gap:var(--spacing-2xl);margin-bottom:var(--spacing-2xl)}.footer-brand .logo{color:var(--color-white);margin-bottom:var(--spacing-md)}.footer-brand p{font-size:var(--font-size-sm);color:var(--text-tertiary);max-width:280px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl)}.footer-col h4{font-size:var(--font-size-xs);font-weight:600;color:var(--color-white);margin-bottom:var(--spacing-md);text-transform:uppercase;letter-spacing:.05em}.footer-col a{display:block;font-size:var(--font-size-sm);color:var(--text-muted);margin-bottom:var(--spacing-sm);transition:color var(--transition-fast)}.footer-col a:hover{color:var(--color-white)}.footer-bottom{padding-top:var(--spacing-xl);border-top:1px solid var(--color-gray-800);text-align:center}.footer-bottom p{font-size:var(--font-size-xs);color:var(--text-tertiary)}.theme-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:var(--spacing-sm);border-radius:var(--radius-lg);background:transparent;color:var(--text-secondary);border:none;cursor:pointer;transition:all var(--transition-fast)}.theme-toggle:hover{background:var(--hover-bg);color:var(--text-primary)}.theme-toggle svg{flex-shrink:0}.fade-in{opacity:0;transform:translateY(16px);animation:fadeIn .6s ease forwards}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}@media(min-width:640px){.features-grid{grid-template-columns:repeat(2,1fr)}.usages-grid{grid-template-columns:repeat(3,1fr)}.usage-card p{display:block}.usage-card{padding:var(--spacing-xl)}.usage-emoji{font-size:2.5rem}.usage-card h3{font-size:var(--font-size-base)}.usage-card p{font-size:var(--font-size-sm)}}@media(min-width:1024px){.nav-container{height:72px}.hero{padding-top:calc(72px + var(--spacing-4xl))}.hero-content{max-width:780px}.hero-split{padding-top:calc(72px + var(--spacing-3xl));padding-bottom:var(--spacing-3xl)}.hero-content-split{flex-direction:row;justify-content:space-between;align-items:center;gap:var(--spacing-3xl)}.hero-text-side{text-align:left;flex:1;max-width:520px}.hero-text-side h1{font-size:clamp(2rem,3.5vw,2.75rem)}.hero-features{align-items:flex-start}.hero-form-side{flex-shrink:0;width:380px}.home-login-card{padding:var(--spacing-2xl)}.features-grid{grid-template-columns:repeat(4,1fr)}.usages-grid{gap:var(--spacing-lg)}.footer-content{flex-direction:row;justify-content:space-between}.footer-links{gap:var(--spacing-3xl)}}