:root {
    --bg: #0a0a0c;
    --fg: #e4e4e7;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.3);
    --card-bg: #16161a;
    --border: #27272a;
    --gray: #71717a;
    --red: #ef4444;
    --green: #22c55e;
    --yellow: #eab308;
    --blue: #3b82f6;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Nav */
nav {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav .container { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-mono); font-weight: 700; font-size: 1.25rem; letter-spacing: -1px; }
.logo span { color: var(--accent); }

.links { display: flex; gap: 2rem; align-items: center; }
.links a { color: var(--gray); text-decoration: none; font-size: 0.9rem; font-weight: 600; transition: color 0.2s; }
.links a:hover { color: var(--fg); }

.btn-small { background: var(--fg); color: var(--bg) !important; padding: 0.4rem 1rem; border-radius: 6px; }

/* Hero */
.hero { padding: 10rem 0; text-align: center; }

.badge {
    display: inline-block;
    background: var(--accent-glow);
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
    border: 1px solid var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

h1 { font-size: 5rem; font-weight: 800; letter-spacing: -3px; line-height: 1.05; margin-bottom: 1.5rem; }
h1 span { background: linear-gradient(to right, var(--accent), #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.subtitle { font-size: 1.25rem; color: var(--gray); max-width: 600px; margin: 0 auto 3rem; }

/* OS Switcher */
.os-switcher { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.os-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--gray);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.os-btn:hover { border-color: var(--accent); color: var(--fg); }
.os-btn.active { background: var(--accent-glow); border-color: var(--accent); color: var(--fg); }

/* Terminal CTA */
.terminal-command {
    background: #000;
    border: 1px solid var(--border);
    padding: 1.25rem 2rem;
    border-radius: 12px;
    font-family: var(--font-mono);
    display: inline-block;
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}
.prompt { color: var(--accent); margin-right: 0.75rem; }

/* Waitlist Form */
.waitlist-form { display: flex; justify-content: center; gap: 0.5rem; max-width: 500px; margin: 0 auto 1.5rem; }
.waitlist-form input {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--fg);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-family: var(--font-sans);
    outline: none;
    transition: all 0.2s;
}
.waitlist-form input:focus { border-color: var(--accent); box-shadow: 0 0 15px var(--accent-glow); }

.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-2px); }

.hint { font-size: 0.9rem; color: var(--gray); }

/* Problem Section */
.problem-section { padding: 8rem 0; border-top: 1px solid var(--border); }
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 4rem; }

.comp-card { padding: 3rem; border-radius: 20px; border: 1px solid var(--border); }
.comp-card h4 { font-size: 1.5rem; margin-bottom: 2rem; }
.comp-card ul { list-style: none; }
.comp-card li { margin-bottom: 1rem; color: var(--gray); font-size: 1.1rem; }
.comp-card li strong { color: var(--fg); margin-right: 0.5rem; }

.comp-card.old { background: #111; }
.comp-card.new { background: var(--card-bg); border-color: var(--accent-glow); box-shadow: 0 0 40px rgba(59, 130, 246, 0.05); }
.comp-card.new h4 { color: var(--accent); }
.comp-card.new li::before { content: "✓"; color: var(--accent); margin-right: 1rem; font-weight: bold; }

/* Grid */
.grid-section { padding: 8rem 0; border-top: 1px solid var(--border); }
.section-header { text-align: center; margin-bottom: 5rem; }
.section-header h2 { font-size: 3rem; margin-bottom: 1rem; letter-spacing: -2px; }
.section-header h2 span { color: var(--accent); }
.section-header p { color: var(--gray); font-size: 1.25rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 3rem;
    border-radius: 24px;
    transition: all 0.3s;
}
.card:hover { transform: translateY(-10px); border-color: var(--accent); box-shadow: 0 10px 40px rgba(0,0,0,0.4); }
.card .icon { font-size: 2.5rem; margin-bottom: 2rem; }
.card h3 { font-size: 1.5rem; margin-bottom: 1rem; letter-spacing: -1px; }
.card p { color: var(--gray); font-size: 1.05rem; }

/* Terminal Window */
.code-preview { padding: 4rem 0; }

.terminal-container {
    max-width: 900px;
    margin: 0 auto;
}

.terminal-description {
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    color: var(--fg);
    padding: 1rem 2rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    transition: opacity 0.3s;
    text-align: left;
}

.terminal-window {
    background: #000;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 30px 100px rgba(0,0,0,0.6);
    overflow: hidden;
}

.terminal-header { background: #111; padding: 1rem 1.5rem; display: flex; align-items: center; gap: 0.5rem; }

.status-pulse {
    margin-left: auto;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    50% { opacity: 1; }
    100% { opacity: 0.4; }
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.terminal-header .title { margin-left: 1rem; font-family: var(--font-mono); font-size: 0.85rem; color: var(--gray); }

.terminal-body {
    padding: 2.5rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    height: 400px;
    overflow-y: auto;
    text-align: left;
    color: #fff;
    line-height: 1.8;
}
.terminal-body div { margin-bottom: 0.75rem; }

.blue { color: #60a5fa; }
.green { color: #4ade80; }
.yellow { color: #facc15; }
.red { color: #f87171; }
.gray { color: #71717a; }

footer { padding: 6rem 0; border-top: 1px solid var(--border); color: var(--gray); font-size: 0.95rem; text-align: center; }
.version { margin-left: 1rem; font-family: var(--font-mono); opacity: 0.5; }

@media (max-width: 768px) {
    h1 { font-size: 3rem; }
    .hero { padding: 6rem 0; }
    .comparison-grid { grid-template-columns: 1fr; }
    .links { display: none; }
}