:root {
    --bg: #020617;
    --card: #0f172a;
    --text: #f8fafc;
    --subtext: #94a3b8;
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --border: #1e293b;
    --input-bg: #020617;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

.navbar {
    background: var(--card);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-nav {
    color: var(--subtext);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: color 0.2s;
}

.btn-nav:hover {
    color: var(--primary);
}

.hidden {
    display: none;
}