:root {
    --bg-dark: #0E0E0F;
    --bg-dark-elevated: #252526;
    --bg-dark-subtle: #1a1a1c;
    --bg-light: #ffffff;
    --bg-light-alt: #fafafa;
    --border-dark: #3a3a3c;
    --border-light: #f0f0f0;
    --accent-blue: #5B8DEF;
    --accent-purple: #A259F7;
    --accent-teal: #2EC4A0;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-muted: #aaa;
    --text-hero: #d4d4d4;
    --text-hero-sub: #ccc;
    --text-hero-body: #666;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
}

code, .monospace {
    font-family: "Courier New", Courier, monospace;
}

/* Nav */
.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-dark);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-dark);
}

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

.wordmark {
    display: flex;
    align-items: center;
    font-family: "Courier New", Courier, monospace;
    font-weight: 500;
    font-size: 24px;
    text-decoration: none;
    color: var(--text-hero);
}

.nav-icon {
    height: 32px;
    margin-right: 12px;
}

.wordmark .l { color: var(--accent-blue); }
.wordmark .y { color: var(--accent-purple); }
.wordmark .n { color: var(--accent-teal); }

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-hero-sub);
    font-size: 14px;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent-teal);
}

.nav-links .teal-link {
    color: var(--accent-teal);
}

.github-btn {
    background-color: var(--bg-dark-elevated);
    color: white !important;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-dark);
}

/* Hero */
.hero {
    background: radial-gradient(ellipse at 50% 0%, #1a1040 0%, #0E0E0F 65%);
    background-color: var(--bg-dark);
    color: var(--text-hero);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--text-hero);
}

.hero .tagline {
    font-size: 20px;
    color: var(--text-hero-sub);
    margin-bottom: 24px;
}

.hero .description {
    max-width: 520px;
    margin: 0 auto 40px;
    font-size: 14px;
    color: var(--text-hero-body);
}

/* Code Blocks */
.code-block-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto 20px;
}

.code-block {
    background-color: var(--bg-dark-elevated);
    border: 1px solid var(--border-dark);
    border-radius: 8px;
    padding: 14px 56px 14px 20px;
    font-family: "Courier New", Courier, monospace;
    font-size: 13px;
    color: var(--accent-teal);
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.copy-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.copy-btn svg {
    width: 18px;
    height: 18px;
    fill: #888;
}

.copy-btn.success svg {
    fill: var(--accent-teal);
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

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

.btn.primary:hover {
    background-color: #4a7be0;
}

.btn.outline {
    border: 1px solid var(--border-dark);
    color: var(--text-hero-sub);
}

.btn.outline:hover {
    border-color: var(--text-hero-sub);
    color: white;
}

.requirement-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.badge {
    font-family: "Courier New", Courier, monospace;
    font-size: 11px;
    color: var(--text-hero-body);
    border: 1px solid #2a2a2c;
    padding: 4px 12px;
    border-radius: 4px;
}

/* Roadmap */
.roadmap { background-color: var(--bg-light-alt); }
.roadmap .section-label { color: var(--accent-purple); }

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto 40px;
}

.roadmap-item {
    position: relative;
    padding-left: 24px;
}

.status-dot {
    position: absolute;
    left: 0;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--bg-dark-elevated);
    border: 1px solid var(--border-light);
}

.roadmap-item.active .status-dot {
    background-color: var(--accent-teal);
    border-color: var(--accent-teal);
    box-shadow: 0 0 10px rgba(46, 196, 160, 0.4);
}

.roadmap-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.roadmap-item p {
    font-size: 12px;
    color: var(--text-secondary);
}

.roadmap-cta {
    text-align: center;
}

.roadmap-cta a {
    font-size: 13px;
    color: var(--accent-blue);
    text-decoration: none;
}

/* Blog Index */
.blog-index {
    padding: 100px 20px;
    max-width: 800px;
}

.blog-header {
    margin-bottom: 60px;
    text-align: left;
}

.blog-header h1 {
    font-size: 32px;
}

.post-preview {
    display: flex;
    gap: 40px;
    padding: 40px 0;
    border-bottom: 1px solid var(--border-light);
}

.post-date {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 100px;
    padding-top: 8px;
}

.post-preview h2 {
    font-size: 20px;
    margin-bottom: 12px;
}

.post-preview h2 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.post-preview h2 a:hover {
    color: var(--accent-teal);
}

.post-preview .excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.read-more {
    font-size: 13px;
    color: var(--accent-teal);
    text-decoration: none;
}

/* Blog Post */
.blog-post {
    padding: 100px 20px;
    max-width: 680px;
}

.post-header {
    margin-bottom: 60px;
}

.post-header .post-date {
    display: block;
    margin-bottom: 16px;
}

.post-header h1 {
    font-size: 36px;
    margin-bottom: 24px;
}

.post-header .excerpt {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.post-body {
    font-size: 16px;
    line-height: 1.8;
}

.post-body h2, .post-body h3 {
    margin: 40px 0 20px;
}

.post-body p {
    margin-bottom: 24px;
}

.post-body ul {
    margin: 0 0 24px 24px;
}

.post-body li {
    margin-bottom: 8px;
}

.post-footer {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
}

.back-link {
    font-size: 14px;
    color: var(--accent-teal);
    text-decoration: none;
}

/* Footer */
section {
    padding: 80px 0;
}

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 24px;
    text-align: center;
}

.problem { background-color: var(--bg-light); }
.problem .section-label { color: var(--accent-purple); }
.problem blockquote {
    max-width: 560px;
    margin: 0 auto;
    font-size: 20px;
    text-align: center;
    color: var(--text-primary);
}

.how-it-works { background-color: var(--bg-light-alt); }
.how-it-works .section-label { color: var(--accent-blue); }

.step-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--bg-dark);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-weight: 600;
    font-size: 14px;
}

.step:nth-child(1) .step-num { color: var(--accent-blue); }
.step:nth-child(2) .step-num { color: var(--accent-purple); }
.step:nth-child(3) .step-num { color: var(--accent-teal); }
.step:nth-child(4) .step-num { color: #888; }

.step h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.step p {
    font-size: 12px;
    color: var(--text-secondary);
}

.features { background-color: var(--bg-light); }
.features .section-label { color: var(--accent-teal); }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.feature-card {
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 24px;
    transition: border-color 0.2s;
}

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

.feature-card .glyph {
    font-size: 24px;
    margin-bottom: 12px;
    display: block;
}

.feature-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Footer */
.site-footer {
    background-color: var(--bg-dark);
    color: var(--text-hero-body);
    padding: 60px 0;
    border-top: 1px solid var(--border-dark);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer-left .wordmark {
    margin-bottom: 8px;
    font-size: 20px;
}

.footer-left .version {
    font-family: monospace;
    font-size: 12px;
    color: #444;
}

.footer-right {
    display: flex;
    gap: 20px;
    font-size: 12px;
}

.footer-right a {
    color: var(--text-hero-body);
    text-decoration: none;
}

.footer-right a:hover {
    color: var(--text-hero-sub);
}

.footer-right .license {
    font-family: monospace;
    color: #444;
}

@media (max-width: 640px) {
    .nav-links a:not(.teal-link):not(.github-btn) {
        display: none;
    }
    .hero h1 { font-size: 32px; }
    .footer-container {
        flex-direction: column;
        align-items: center;
        gap: 40px;
        text-align: center;
    }
}