:root {
    --bg-primary: #1E1E1E;
    --bg-secondary: #2D2D30;
    --bg-tertiary: #252526;
    --bg-hover: #333337;
    --bg-active: #37373D;
    --accent: #007ACC;
    --accent-hover: #1A8AD4;
    --success: #4EC9B0;
    --warning: #FFCC00;
    --danger: #F44747;
    --text: #D4D4D4;
    --text-dim: #808080;
    --text-bright: #FFFFFF;
    --border: #3E3E42;
    --border-light: #4E4E52;
    --radius: 6px;
    --radius-lg: 10px;
    --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    background: var(--bg-primary);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
}

.page {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero {
    text-align: center;
    padding: 64px 0 48px;
}

.brand-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), #005A9E);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 22px;
    color: white;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-dim);
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary-lg {
    background: var(--warning);
    color: #000;
    font-size: 16px;
    padding: 14px 28px;
    position: relative;
}

.btn-primary-lg:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 204, 0, 0.3);
}

.btn-tag {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0,0,0,0.15);
    padding: 2px 8px;
    border-radius: 4px;
}

.btn-secondary-lg {
    background: var(--bg-secondary);
    color: var(--text);
    border: 1px solid var(--border);
    font-size: 16px;
    padding: 14px 28px;
}

.btn-secondary-lg:hover {
    border-color: var(--accent);
    background: var(--bg-hover);
    transform: translateY(-2px);
}

.section {
    padding: 48px 0;
    border-top: 1px solid var(--border);
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 28px;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
}

.step-num {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 16px;
    color: white;
    flex-shrink: 0;
}

.step-text h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.step-text p {
    font-size: 14px;
    color: var(--text-dim);
}

.step-text code {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--success);
    font-size: 13px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: border-color 0.2s;
}

.feature-card:hover {
    border-color: var(--accent);
}

.feature-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.5;
}

.how-it-works {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.how-it-works p {
    font-size: 15px;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.7;
}

.how-it-works code {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--success);
    font-size: 13px;
}

.how-it-works ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.how-it-works li {
    font-size: 14px;
    color: var(--text);
    padding: 4px 0;
    line-height: 1.6;
}

.prereq-note {
    font-size: 13px;
    color: var(--warning);
    margin-bottom: 0;
}

.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    font-size: 13px;
    color: var(--text-dim);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

@media (max-width: 600px) {
    .hero-title { font-size: 28px; }
    .hero-desc { font-size: 15px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .section-title { font-size: 22px; }
    .features-grid { grid-template-columns: 1fr; }
    .step { flex-direction: column; gap: 12px; }
}