:root{--primary-blue: #0066cc;--primary-blue-hover: #0052a3;--primary-blue-active: #003d7a;--text-dark: #1a1a1a;--text-body: #333333;--text-secondary: #666666;--text-light: #999999;--bg-white: #ffffff;--bg-secondary: #f8f9fa;--border-color: #e0e0e0;--border-hover: #0066cc;--success: #28a745;--error: #dc3545;--warning: #ffc107;--info: #17a2b8;--footer-bg: #2c3e50;--footer-text: #ecf0f1;--footer-link: #3498db;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--spacing-3xl: 64px;--header-height-mobile: 56px;--header-height-desktop: 64px;--header-height-sticky: 56px;--header-shadow: 0 2px 4px rgba(0, 0, 0, .05);--header-shadow-scrolled: 0 2px 8px rgba(0, 0, 0, .1);--menu-width: 280px;--menu-overlay: rgba(0, 0, 0, .6);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px;--container-max-width: 1200px}[data-theme=dark]{--text-dark: #f0f0f0;--text-body: #e0e0e0;--text-secondary: #b0b0b0;--text-light: #808080;--bg-white: #1a1a1a;--bg-secondary: #252525;--border-color: #3a3a3a;--border-hover: #4d9fff;--primary-blue: #4d9fff;--primary-blue-hover: #66b3ff;--primary-blue-active: #80c7ff;--success: #4ade80;--error: #f87171;--warning: #fbbf24;--info: #38bdf8;--footer-bg: #0f0f0f;--footer-text: #d1d5db;--footer-link: #60a5fa;--header-shadow: 0 2px 4px rgba(0, 0, 0, .3);--header-shadow-scrolled: 0 2px 8px rgba(0, 0, 0, .5);--menu-overlay: rgba(0, 0, 0, .8)}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--text-body);background-color:var(--bg-white);transition:background-color .3s ease,color .3s ease}h1,h2,h3,h4,h5,h6{color:var(--text-dark);font-weight:700;line-height:1.2}a{color:var(--primary-blue);text-decoration:none;transition:color .2s ease}a:hover{color:var(--primary-blue-hover)}button{font-family:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--primary-blue);outline-offset:2px}.container{max-width:var(--container-max-width);margin:0 auto;padding:0 var(--spacing-md)}@media(min-width:768px){.container{padding:0 var(--spacing-xl)}}.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}.toast-container{position:fixed;bottom:24px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:12px;z-index:1000;width:calc(100% - 32px);max-width:400px}.toast{padding:12px 20px;border-radius:8px;background-color:#333;color:#fff;box-shadow:0 4px 12px #00000026;animation:slideUp .3s ease-out;font-weight:500;text-align:center}.toast.success{background-color:var(--success)}.toast.error{background-color:var(--error)}.toast.info{background-color:var(--footer-bg)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.copy-btn{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;padding:6px 10px;font-size:1.1rem;margin-left:12px;cursor:pointer;transition:all .2s ease;vertical-align:middle;display:inline-flex;align-items:center;justify-content:center}.copy-btn:hover{background-color:var(--border-color);transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}[data-theme=dark] .copy-btn:hover{background-color:#fff3}.favorite-btn{background:var(--bg-secondary);border:1px solid var(--border-color);font-size:1.2rem;padding:6px 10px;margin-left:10px;border-radius:8px;cursor:pointer;transition:all .2s ease;vertical-align:middle;display:inline-flex;align-items:center;justify-content:center}.favorite-btn:hover{background-color:#fee2e2;border-color:#fca5a5;transform:translateY(-2px);box-shadow:0 4px 8px #dc26261a}.favorite-btn.favorited{background-color:#fee2e2;border-color:#fca5a5}.favorite-btn:active{transform:scale(.95)}.favorite-btn.favorited .heart-icon{display:inline-block;animation:heartBeat .3s ease}@keyframes heartBeat{0%,to{transform:scale(1)}25%{transform:scale(1.3)}50%{transform:scale(1.1)}}.cta-button{display:inline-flex;align-items:center;justify-content:center;padding:12px 28px;border-radius:12px;font-weight:700;font-size:16px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);border:none;text-decoration:none;gap:8px;white-space:nowrap}.cta-button.primary{background-color:var(--primary-blue);color:#fff}.cta-button.primary:hover{background-color:var(--primary-blue-hover);transform:translateY(-2px);box-shadow:0 4px 12px #0066cc4d}.cta-button.primary:active{transform:translateY(0)}.cta-button.secondary{background-color:var(--bg-secondary);color:var(--text-dark);border:1px solid var(--border-color)}.cta-button.secondary:hover{background-color:var(--border-color);transform:translateY(-2px);box-shadow:0 4px 12px #0000000d}.cta-button.secondary:active{transform:translateY(0)}.cta-button.small{padding:8px 16px;font-size:14px;border-radius:8px}.cta-button.large{padding:16px 36px;font-size:18px}.cta-button.text-red{color:#dc2626}.cta-button.text-red:hover{background-color:#fee2e2;border-color:#fca5a5;color:#b91c1c}