:root{--font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--color-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);--color-text-primary: #f1f5f9;--color-text-secondary: #94a3b8;--color-indigo-600: #6366f1;--color-indigo-700: #4f46e5;--color-indigo-800: #4338ca;--color-gray-200: #1e293b;--color-gray-300: #334155;--color-gray-700: #64748b;--color-accent: #facc15;--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .6), 0 2px 4px -2px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .6), 0 4px 6px -2px rgba(0, 0, 0, .4);--radius-md: .5rem;--radius-lg: 1rem;--transition-ease: cubic-bezier(.4, 0, .2, 1)}html{scroll-behavior:smooth}body{margin:0;padding:0;min-height:100vh;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;display:flex;justify-content:center;align-items:center}body>*{max-width:60rem;width:100%}h1,h2,h3{color:var(--color-accent);margin:.5rem 0;text-shadow:0 1px 2px rgba(250,204,21,.15);transition:transform .3s var(--transition-ease)}h1:hover,h2:hover,h3:hover{transform:translateY(-2px)}h1{font-size:2.5rem;font-weight:800}h2{font-size:1.5rem;border-bottom:2px solid var(--color-gray-300);padding-bottom:.75rem;margin-bottom:1.25rem}.card{background-color:#1e293b;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-md);width:100%;max-width:56rem;border:1px solid var(--color-gray-300);transition:transform .3s var(--transition-ease),box-shadow .3s var(--transition-ease);animation:slideIn .5s var(--transition-ease) 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var(--transition-ease)}.nav-links a:hover{color:var(--color-accent);transform:translateY(-2px)}.buy-coffee{margin-left:1rem;padding:.25rem .75rem;background-color:transparent;border:1px solid var(--color-gray-300);border-radius:var(--radius-md);color:var(--color-text-primary);cursor:pointer;transition:background-color .3s var(--transition-ease),transform .3s var(--transition-ease)}.buy-coffee:hover{background-color:var(--color-gray-300);transform:scale(1.05)}footer{margin-top:4rem;text-align:center;font-size:.875rem;color:var(--color-text-secondary);padding:2rem 1rem;background-color:#1e293b;border-top:1px solid var(--color-gray-300);border-radius:var(--radius-lg)}.footer-links{margin-top:.5rem;display:flex;justify-content:center;gap:1.5rem}.footer-links a{color:var(--color-accent);text-decoration:none;font-weight:500}.footer-links a:hover{text-decoration:underline}@media (max-width: 640px){.card{padding:1.5rem}textarea{min-height:12rem}nav{flex-direction:column;padding:1rem}.nav-brand{margin-bottom:1rem}.nav-links{flex-direction:column;gap:.75rem}.buy-coffee{margin-left:0;margin-top:.5rem}.footer-links{flex-direction:column;gap:.5rem}}.coffee-dropdown{position:relative;display:inline-block}.coffee-menu{position:absolute;top:100%;left:0;margin-top:.25rem;background-color:#1e293b;border:1px solid var(--color-gray-300);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:.5rem;z-index:100;display:flex;flex-direction:column;gap:.25rem;min-width:6.25rem}.coffee-menu button{background:transparent;border:none;color:var(--color-text-primary);padding:.25rem .75rem;text-align:left;cursor:pointer;border-radius:var(--radius-md);transition:background-color .2s var(--transition-ease);font-size:.95rem}.coffee-menu button:hover{background-color:var(--color-gray-300);color:var(--color-bg)}@media (max-width: 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