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

:root {
    --bg: #0d1117;
    --bg-secondary: #161b22;
    --fg: #c9d1d9;
    --fg-dim: #484f58;
    --accent: #79c0ff;
    --accent-hover: #58a6ff;
    --green: #3fb950;
    --border: #21262d;
}

body {
    font-family: 'Segoe UI', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 100px 24px 80px;
    background: linear-gradient(180deg, #161b22 0%, #0d1117 100%);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--fg-dim);
    max-width: 560px;
    margin: 0 auto 32px;
}

.cta-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--fg-dim);
}

/* Sections */
.section {
    padding: 80px 24px;
}

.section-dark {
    background: var(--bg-secondary);
}

.section h2 {
    text-align: center;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 48px;
}

/* Grid layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
}

.card-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    background: var(--accent);
    color: var(--bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.card h3 {
    color: #fff;
    margin-bottom: 8px;
}

/* Features */
.feature {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
}

.feature h3 {
    color: var(--accent);
    margin-bottom: 6px;
    font-size: 1rem;
}

.feature p {
    font-size: 0.9rem;
    color: var(--fg-dim);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 640px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--accent);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    text-transform: uppercase;
}

.pricing-card h3 {
    color: #fff;
    margin-bottom: 8px;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.price span {
    font-size: 1rem;
    color: var(--fg-dim);
    font-weight: 400;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 24px;
    text-align: left;
}

.pricing-card li {
    padding: 6px 0;
    color: var(--fg-dim);
    font-size: 0.9rem;
}

.pricing-card li::before {
    content: "\2713";
    color: var(--green);
    margin-right: 8px;
    font-weight: 700;
}

.pricing-note {
    text-align: center;
    color: var(--fg-dim);
    font-size: 0.85rem;
    margin-top: 24px;
}

/* Steps */
.steps {
    max-width: 600px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 28px;
}

.step-num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--accent);
    color: var(--bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step h3 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 4px;
}

.step p {
    color: var(--fg-dim);
    font-size: 0.9rem;
}

/* FAQ */
.faq {
    max-width: 680px;
    margin: 0 auto;
}

details {
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

summary {
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    color: #fff;
    background: var(--bg-secondary);
    transition: background 0.2s;
}

summary:hover {
    background: #1c2128;
}

details p {
    padding: 0 20px 16px;
    color: var(--fg-dim);
    font-size: 0.9rem;
}

details[open] summary {
    border-bottom: 1px solid var(--border);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 24px;
    border-top: 1px solid var(--border);
    color: var(--fg-dim);
    font-size: 0.85rem;
}

.footer-links {
    margin-top: 8px;
}

.footer-links a {
    color: var(--accent);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
}