:root {
    --primary: #0f172a;
    --accent: #22d3ee;
    --text: #334155;
    --bg: #f8fafc;
    --code: #e2e8f0;
}

body { font-family: 'JetBrains Mono', 'IBM Plex Sans JP', monospace, sans-serif; background: var(--bg); color: var(--text); margin: 0; }

nav { background: var(--primary); color: white; padding: 1.5rem 10%; display: flex; justify-content: space-between; align-items: center; border-bottom: 4px solid var(--accent); }

.hero {
    padding: 100px 10%;
    display: flex;
    align-items: center;
    gap: 60px;
    background: #fff;
}

.hero-text { flex: 1; }
.hero h1 { font-size: 3rem; color: var(--primary); margin-bottom: 24px; line-height: 1.1; }

.terminal { background: #1e293b; color: #38bdf8; padding: 20px; border-radius: 10px; font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }

.section { padding: 80px 10%; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }

.lab-card { background: white; padding: 40px; border-radius: 1px; border-left: 4px solid var(--accent); box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); }

footer { padding: 60px 10%; background: var(--primary); color: #94a3b8; text-align: center; }