:root {
    /* "Zen Temple" Color Palette */
    --bg: #161615;
    --surface: #1c1c1b;
    --fg: #d1d1cf;
    --muted: #8a8a88;
    --border: rgba(232, 230, 227, 0.08);
    --primary: #e8e6e3;

    /* Syntax Highlighting */
    --kwd: #ff9f6e;
    --str: #a3be8c;
    --typ: #ebcb8b;
    --fn: #88c0d0;
    --num: #d08770;
    --com: #656a70;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    overflow-x: hidden;
    max-width: 100%;
}

body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    max-width: 100%;
    position: relative;
    width: 100%;
}

.grid-bg,
.glow-decoration {
    display: none;
}

/* --- DESKTOP LAYOUT --- */
.container {
    max-width: 1600px;
    /* Increased max-width for wider layout */
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Typography --- */
h1,
h2,
h3 {
    color: var(--primary);
    letter-spacing: -0.03em;
    font-family: 'Kaisei Tokumin', serif;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

section[id] {
    scroll-margin-top: 140px;
}

.section-desc {
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 600px;
}

.section-pad {
    padding-bottom: 5rem;
    padding-top: 3rem;
}

.section-header {
    margin-bottom: 2.5rem;
}

/* --- Navigation --- */
header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    margin-bottom: 2.5rem;
    background: rgba(22, 22, 21, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-family: 'Kaisei Tokumin', serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: default;
    letter-spacing: -0.02em;
}

.version {
    color: var(--muted);
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 4px;
    font-weight: 400;
    letter-spacing: 0;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-left: 2rem;
    transition: color 0.2s;
    font-weight: 500;
}

nav a:hover,
nav a.github-link {
    color: var(--primary);
}

/* --- Hero --- */
.hero {
    display: grid;
    /* WIDER TERMINAL: ~30% Text / ~70% Terminal */
    grid-template-columns: 0.5fr 1.5fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
    margin-top: 1rem;
}

.mega-title {
    font-family: 'Kaisei Tokumin', serif;
    font-size: 5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 0.95;
    margin-bottom: 1rem;
    background: linear-gradient(180deg, var(--primary) 0%, var(--muted) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 80px rgba(255, 255, 255, 0.15);
}

.sub-title {
    font-size: 1.8rem;
    line-height: 1.2;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--fg);
    margin-bottom: 1.25rem;
}

.lead {
    font-size: 1.05rem;
    color: var(--muted);
    margin-bottom: 2rem;
    max-width: 95%;
    line-height: 1.6;
}

.lead strong {
    color: var(--fg);
    font-weight: 600;
}

/* Command Line */
.cmd-line-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 2rem;
    position: relative;
    max-width: 100%;
}

.cmd-line {
    background: #000;
    border: 1px solid var(--border);
    padding: 10px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--muted);
    border-radius: 6px;
    white-space: nowrap;
    overflow-x: auto;
}

.prompt {
    color: var(--fg);
    margin-right: 8px;
    user-select: none;
    opacity: 0.5;
}

.copy-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    width: 38px;
    height: 38px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.copy-btn:hover {
    background: #1a1a1a;
    color: var(--primary);
    border-color: #333;
}

.copy-feedback {
    position: absolute;
    left: 100%;
    margin-left: 12px;
    color: var(--kwd);
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn {
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 10px 24px;
    border-radius: 2px;
    transition: 0.2s;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background: #fff;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    border-color: var(--muted);
    background: rgba(255, 255, 255, 0.03);
}

/* --- Code Block with Line Numbers --- */
.hero-code {
    background: #050505;
    border: 1px solid #27272a;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    /* Ensure it doesn't overflow horizontally */
    max-width: 100%;
}

.code-header-simple {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #18181b;
    padding: 10px 16px;
    background: #09090b;
}

.window-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.control.red {
    background-color: #ff5f56;
}

.control.yellow {
    background-color: #ffbd2e;
}

.control.green {
    background-color: #27c93f;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: auto;
    margin-left: 16px;
    opacity: 0.6;
}

.terminal-icon {
    color: var(--muted);
    opacity: 0.7;
}

.file-name-mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--muted);
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* Flex Container for Line Numbers + Code */
.code-body {
    display: flex;
    padding: 1.5rem;
    background: #050505;
}

.line-numbers {
    display: flex;
    flex-direction: column;
    color: var(--muted);
    opacity: 0.4;
    text-align: right;
    padding-right: 1.5rem;
    user-select: none;
    /* Prevent copying line numbers */
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    border-right: 1px solid #27272a;
    margin-right: 1.5rem;
    min-width: 2.5rem;
}

pre {
    padding: 0;
    margin: 0;
    white-space: pre;
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--fg);
    flex-grow: 1;
}

pre code {
    display: block;
    min-width: 100%;
}

/* Syntax Colors */
.kwd {
    color: var(--kwd);
}

.str {
    color: var(--str);
}

.typ {
    color: var(--typ);
}

.fn {
    color: var(--fn);
}

.num {
    color: var(--num);
}

.com {
    color: var(--com);
    font-style: italic;
}

/* --- Use Cases Ticker --- */
.use-cases-ticker {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
    flex-wrap: wrap;
    padding-top: 1rem;
    border-top: 1px solid transparent;
}

.uc-label {
    color: var(--fg);
    font-weight: 700;
    margin-right: 0.5rem;
}

.uc-dot {
    opacity: 0.2;
}

/* --- Features & Tooling --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-bottom: 5rem;
    border-radius: 1px;
}

.tooling-grid {
    border: 1px solid var(--border);
    margin-bottom: 0;
}

.feature-card {
    background: var(--bg);
    padding: 2.5rem 2rem;
    transition: background 0.2s;
}

.feature-card:hover {
    background: #0c0c0e;
}

.feature-card h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--fg);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.6;
}

/* --- Interop Grid --- */
.interop-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.interop-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
}

.interop-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.interop-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.interop-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.flag-badge {
    background: #222;
    color: var(--typ);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.interop-card p {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.mini-code {
    background: #000;
    padding: 1rem;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.mini-code pre {
    padding: 0;
    font-size: 0.75rem;
}

/* --- Sponsors --- */
.sponsors-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4rem;
}

.sponsors-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.tiers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.tier-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
}

.tier-card:hover {
    transform: translateY(-4px);
    border-color: #333;
}

.tier-card.featured {
    background: #18181b;
    border-color: #3f3f46;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.tier-card.featured::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.tier-name {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
}

.tier-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.tier-price span {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 400;
}

.tier-desc {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.tier-features {
    list-style: none;
    text-align: left;
    font-size: 0.85rem;
    color: var(--fg);
    margin-top: auto;
}

.tier-features li {
    margin-bottom: 0.8rem;
    display: flex;
    gap: 8px;
}

/* --- Installation --- */
.installation {
    text-align: center;
    border-top: 1px solid var(--border);
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.install-steps {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2.5rem 0 1.5rem 0;
    flex-wrap: wrap;
}

.step {
    background: var(--surface);
    padding: 16px 24px;
    border: 1px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.step-label {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--muted);
    letter-spacing: 0.05em;
    opacity: 0.6;
}

.step code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--fg);
}

.install-note {
    color: var(--muted);
    font-size: 0.85rem;
}

.install-note code {
    color: var(--fg);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

/* --- Footer --- */
footer.container {
    border-top: 1px solid var(--border);
    padding: 4rem 2rem;
    margin-top: 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--muted);
}

.footer-logo {
    color: var(--fg);
    font-family: 'Kaisei Tokumin', serif;
    font-weight: 700;
    font-size: 1.1rem;
}

.footer-links a {
    margin-left: 24px;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--fg);
}

/* --- Mobile Responsiveness --- */
@media (max-width: 900px) {
    .container {
        padding: 0 1.25rem;
    }

    .section-pad {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    /* Hero */
    .hero {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
        margin-top: 2rem;
    }

    .hero-text {
        align-items: center;
        display: flex;
        flex-direction: column;
    }

    .mega-title {
        font-size: clamp(3rem, 15vw, 4.5rem);
        line-height: 1;
        letter-spacing: -0.04em;
    }

    .sub-title {
        font-size: 1.35rem;
        max-width: 100%;
        margin-bottom: 2rem;
    }

    /* Terminal: Edge-to-Edge */
    /* Terminal: Centered Card */
    .hero-code {
        width: 100%;
        margin: 0 auto;
        border-radius: 6px;
        text-align: left;
        border: 1px solid #27272a;
    }

    .code-body {
        padding: 1.25rem;
    }

    .line-numbers {
        font-size: 0.75rem;
        /* Smaller mobile font */
        padding-right: 0.75rem;
        margin-right: 0.75rem;
        min-width: 1.5rem;
    }

    pre {
        font-size: 0.75rem;
        tab-size: 2;
    }

    .code-header-simple {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    /* Command Line */
    .cmd-line-wrapper {
        flex-direction: column;
        width: 100%;
        gap: 12px;
        align-items: stretch;
    }

    .cmd-line {
        width: 100%;
        text-align: left;
        overflow-x: auto;
    }

    .copy-btn {
        width: 100%;
        height: 44px;
    }

    .copy-feedback {
        position: relative;
        left: 0;
        bottom: 0;
        margin: 0;
        margin-top: -8px;
        text-align: center;
        width: 100%;
    }

    /* Header / Nav */
    header {
        position: relative;
        padding: 1.5rem 0;
    }

    .nav-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.25rem;
    }

    nav a {
        margin: 0 0.5rem;
    }

    /* Vertical Stack for Mobile */
    .features-grid,
    .interop-grid,
    .tiers-grid {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
        background: transparent;
        border: none;
        margin-left: 0;
        margin-right: 0;
        overflow: visible;
    }

    .feature-card {
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 2rem 1.5rem;
    }

    .interop-card,
    .tier-card {
        width: 100%;
        max-width: none;
    }

    /* Use Cases - Native Horizontal Scroll */
    .use-cases-ticker {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1.5rem;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        gap: 1rem;
    }

    .use-cases-ticker .uc-item,
    .use-cases-ticker .uc-label,
    .use-cases-ticker .uc-dot {
        flex-shrink: 0;
        white-space: nowrap;
    }

    /* Installation */
    .install-steps {
        flex-direction: column;
        gap: 1rem;
    }

    .step {
        width: 100%;
        justify-content: space-between;
    }

    /* Footer */
    footer.container {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
    }

    .footer-links a {
        margin: 0;
    }
}