:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #121214;
    --text-primary: #ededed;
    --text-secondary: #ffffff;
    --accent: #00ff9d;
    --accent-dim: rgba(0, 255, 157, 0.1);
    --border: #27272a;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

header,
main,
footer {
    max-width: 940px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-top: 2rem;
    padding-bottom: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 4px;
    /* More tech/square look */
    border: 1px solid var(--accent);
    background: var(--accent-dim);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-family: var(--font-mono);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-text span:first-child {
    font-weight: 600;
    letter-spacing: -0.02em;
}

.brand-text span:last-child {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

nav a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.2s;
}

nav a:hover,
nav a.active {
    color: var(--accent);
}

/* Hero */
.hero-title {
    font-size: 3rem;
    margin: 2rem 0 1rem;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #fff, #a1a1aa);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 650px;
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-top: 0;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-secondary);
    transition: all 0.2s;
    font-family: var(--font-mono);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.btn:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
    font-weight: 600;
}

.btn-primary:hover {
    background: #00cc7d;
    /* Darker accent */
    box-shadow: 0 0 15px var(--accent-dim);
}

/* Sections */
section {
    margin-top: 4rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    display: inline-block;
}

/* Cards */
.card-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
}

.card h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.inline-link {
    color: var(--accent);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.inline-link:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    margin-top: 4rem;
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    font-family: var(--font-mono);
}