/* Chrome Themes Collection */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;700&display=swap');

:root {
    --google-blue: #1a73e8;
    --google-red: #ea4335;
    --google-yellow: #fbbc04;
    --google-green: #34a853;
    --google-gray: #5f6368;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; line-height: 1.6; }
a { text-decoration: none; transition: 0.3s; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.btn { display: inline-block; padding: 12px 30px; border-radius: 4px; font-weight: 500; cursor: pointer; }

/* 1. Classic Theme (Official) */
.theme-classic { background: #fff; color: #202124; }
.theme-classic .navbar { border-bottom: 1px solid #dadce0; padding: 15px 0; }
.theme-classic .nav-link { color: #5f6368; font-size: 14px; margin-left: 20px; }
.theme-classic .nav-link:hover { color: #1a73e8; }
.theme-classic .hero { text-align: center; padding: 80px 0; }
.theme-classic h1 { font-size: 56px; margin-bottom: 20px; font-weight: 700; letter-spacing: -1px; }
.theme-classic .btn-primary { background: #1a73e8; color: #fff; border-radius: 24px; padding: 14px 40px; font-size: 16px; }
.theme-classic .btn-primary:hover { background: #1765cc; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.theme-classic .feature-card { padding: 30px; border-radius: 8px; border: 1px solid #dadce0; transition: 0.3s; }
.theme-classic .feature-card:hover { border-color: #fff; box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* 2. Dev Theme (Dark/Technical) */
.theme-dev { background: #202124; color: #e8eaed; font-family: 'Fira Code', monospace; }
.theme-dev .navbar { background: #292a2d; border-bottom: 1px solid #3c4043; padding: 15px 0; }
.theme-dev .logo { color: #fff; font-weight: 700; }
.theme-dev .nav-link { color: #9aa0a6; }
.theme-dev .nav-link:hover { color: #8ab4f8; }
.theme-dev .hero { padding: 100px 0; border-bottom: 1px solid #3c4043; }
.theme-dev h1 { font-size: 48px; color: #8ab4f8; margin-bottom: 20px; }
.theme-dev .btn-primary { background: #8ab4f8; color: #202124; border-radius: 4px; font-weight: 700; }
.theme-dev .code-block { background: #292a2d; padding: 20px; border-radius: 8px; color: #a8c7fa; margin-top: 40px; text-align: left; }

/* 3. Enterprise Theme (Business) */
.theme-enterprise { background: #f8f9fa; color: #3c4043; font-family: 'Open Sans', sans-serif; }
.theme-enterprise .navbar { background: #fff; box-shadow: 0 2px 4px rgba(0,0,0,0.05); padding: 20px 0; }
.theme-enterprise .hero { background: #1a73e8; color: #fff; padding: 100px 0; clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%); }
.theme-enterprise .btn-primary { background: #fff; color: #1a73e8; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.theme-enterprise .card { background: #fff; padding: 40px; border-radius: 0; border-top: 4px solid #1a73e8; box-shadow: 0 4px 8px rgba(0,0,0,0.05); }

/* 4. Speed Theme (Performance) */
.theme-speed { background: #000; color: #fff; overflow-x: hidden; }
.theme-speed .navbar { position: absolute; width: 100%; top: 0; padding: 20px 0; z-index: 10; }
.theme-speed .hero { height: 100vh; display: flex; align-items: center; justify-content: center; background: radial-gradient(circle at center, #222 0%, #000 100%); text-align: center; }
.theme-speed h1 { font-size: 80px; font-style: italic; font-weight: 900; background: linear-gradient(90deg, #ff00cc, #333399); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 10px; }
.theme-speed .btn-primary { background: linear-gradient(90deg, #ff00cc, #333399); color: #fff; border-radius: 50px; padding: 15px 50px; font-size: 20px; font-style: italic; font-weight: 900; }
.theme-speed .blur-bg { position: absolute; width: 100%; height: 100%; top: 0; left: 0; background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxmaWx0ZXIgaWQ9Im4iPjxmZVR1cmJ1bGVuY2UgdHlwZT0iZnJhY3RhbE5vaXNlIiBiYXNlRnJlcXVlbmN5PSIwLjUiIG51bU9jdGF2ZXM9IjEiIHN0aXRjaFRpbGVzPSJzdGl0Y2giLz48L2ZpbHRlcj48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWx0ZXI9InVybCgjbikiIG9wYWNpdHk9IjAuMSIvPjwvc3ZnPg=='); opacity: 0.3; pointer-events: none; }

/* 5. Creative Theme (Artistic) */
.theme-creative { background: #fff8e1; color: #5d4037; }
.theme-creative .navbar { padding: 20px 0; }
.theme-creative .logo { font-family: 'Comic Sans MS', 'Chalkboard SE', sans-serif; font-size: 28px; color: #ff6f00; }
.theme-creative .hero { padding: 80px 0; text-align: center; }
.theme-creative h1 { font-family: 'Comic Sans MS', sans-serif; font-size: 48px; color: #e65100; margin-bottom: 20px; }
.theme-creative .btn-primary { background: #ff6f00; color: #fff; border-radius: 12px 24px 12px 24px; border: 2px solid #333; box-shadow: 4px 4px 0 #333; transition: 0.2s; }
.theme-creative .btn-primary:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 #333; }
.theme-creative .doodle-card { background: #fff; border: 2px solid #333; border-radius: 15px; padding: 20px; transform: rotate(-2deg); margin: 20px; display: inline-block; width: 280px; }
.theme-creative .doodle-card:nth-child(even) { transform: rotate(2deg); background: #e1f5fe; }

/* Common Utilities */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 60px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.footer { margin-top: 80px; padding: 40px 0; border-top: 1px solid rgba(0,0,0,0.1); text-align: center; font-size: 14px; color: inherit; opacity: 0.7; }
.download-section { background: rgba(0,0,0,0.03); padding: 40px; border-radius: 12px; text-align: center; margin: 40px 0; }
.download-page-box { max-width: 600px; margin: 60px auto; padding: 40px; border-radius: 16px; text-align: center; }