:root {
    --bg: #0b0f19; --card: #151b2b; --border: #2a3245;
    --accent: #6366f1; --accent-glow: #818cf8;
    --text: #e2e8f0; --text-dim: #94a3b8;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    background-image: radial-gradient(ellipse at top, #1a1f2e 0%, var(--bg) 70%);
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
/* Navbar */
.navbar { padding: 1rem 0; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(11,15,25,0.9); backdrop-filter: blur(8px); z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 700; font-size: 1.2rem; color: var(--accent); text-decoration: none; letter-spacing: 1px; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.lang-btn { padding: 0.3rem 0.8rem; border: 1px solid var(--accent); border-radius: 4px; font-size: 0.8rem; }
/* Hero */
.hero { text-align: center; padding: 5rem 0 3rem; }
.hero h1 { font-size: 2.8rem; margin-bottom: 1rem; background: linear-gradient(90deg, #fff, var(--accent-glow)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { color: var(--text-dim); max-width: 700px; margin: 0 auto 2rem; font-size: 1.1rem; }
.btn-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 0.9rem 2rem; border-radius: 6px; font-weight: 600; text-decoration: none; transition: all 0.3s; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(99,102,241,0.4); }
.btn-outline { border: 1px solid var(--text-dim); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
/* Sections */
.section { padding: 4rem 0; border-top: 1px solid var(--border); }
.section h2 { font-size: 2rem; margin-bottom: 1rem; color: var(--accent-glow); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; transition: transform 0.2s, border-color 0.2s; }
.card:hover { transform: translateY(-3px); border-color: var(--accent); }
.card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.card p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 1rem; }
.tag { display: inline-block; font-size: 0.75rem; padding: 0.2rem 0.6rem; background: rgba(99,102,241,0.15); color: var(--accent-glow); border-radius: 20px; margin-bottom: 0.8rem; }
footer { text-align: center; padding: 3rem 0; color: #475569; font-size: 0.9rem; border-top: 1px solid var(--border); margin-top: 2rem; }
@media (max-width: 600px) { .hero h1 { font-size: 2rem; } .grid { grid-template-columns: 1fr; } }