/* SPDX-License-Identifier: (MIT OR Apache-2.0) */

:root {
    --bg: #2E3440;
    --bg-2: #3B4252;
    --text: #ECEFF4;
    --text-dim: #D8DEE9;
    --text-muted: #88C0D0;
    --green: #0B5C38;
    --green-light: #0F7A4A;
    --border: #4C566A;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 17px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

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

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--green-light);
}

.navbar .status {
    margin-bottom: 0;
}

/* Hero */
.hero {
    padding: 5rem 0 3rem;
    text-align: center;
}

.hero-logo {
    height: 250px;
    margin-bottom: 3rem;
}

.status {
    display: inline-block;
    background: var(--bg-2);
    color: var(--text-muted);
    padding: 0.4rem 0.9rem;
    border-radius: 4px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
}

.tagline {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--text);
}

.subtitle {
    font-size: 1.15rem;
    color: var(--text-dim);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s;
}

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

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

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

.btn.secondary:hover {
    border-color: var(--green-light);
    color: var(--text);
}

/* Code Sample */
.code-sample {
    margin: 3rem 0;
}

.window {
    background: var(--bg-2);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.title-bar {
    background: var(--bg);
    padding: 0.7rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dots {
    display: flex;
    gap: 0.4rem;
}

.dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
}

.dots span:nth-child(1) { background: #BF616A; }
.dots span:nth-child(2) { background: #EBCB8B; }
.dots span:nth-child(3) { background: #A3BE8C; }

pre {
    padding: 1.75rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.92rem;
    line-height: 1.8;
    overflow-x: auto;
}

.kw { color: #81A1C1; }
.fn { color: #88C0D0; }
.ty { color: #8FBCBB; }

h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

/* Insight Section */
.insight {
    margin: 4rem 0;
}

.insight p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

.tradeoff-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2.5rem;
}

.tradeoff-box .cost,
.tradeoff-box .benefit {
    background: var(--bg-2);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.tradeoff-box h3 {
    margin: 0 0 0.8rem 0;
    font-size: 1.1rem;
    color: var(--text);
}

.tradeoff-box .benefit {
    border-color: var(--green-light);
}

.tradeoff-box p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Mechanisms Section */
.mechanisms {
    margin: 4rem 0;
}

.mechanism {
    margin-bottom: 3rem;
}

.mechanism:last-child {
    margin-bottom: 0;
}

.mechanism h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--green-light);
}

.mechanism > p {
    margin-bottom: 1.2rem;
    font-size: 1rem;
    line-height: 1.6;
}

/* Tradeoffs Section */
.tradeoffs {
    margin: 4rem 0;
}

.tradeoffs > p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.tradeoffs p:last-of-type {
    margin-top: 1.5rem;
    font-size: 1rem;
}

/* Result Section */
.result {
    margin: 4rem 0;
}

.result ul {
    list-style: none;
}

.result li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1.05rem;
}

.result li:last-child {
    border-bottom: none;
}

/* Comparison */
.comparison {
    margin: 1rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

th, td {
    padding: 0.9rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    background: var(--bg-2);
}

td {
    color: var(--text-dim);
}

.hl {
    color: var(--green-light);
    font-weight: 500;
}

/* Philosophy Section */
.philosophy {
    margin: 4rem 0;
}

.philosophy p {
    margin: 0 0 2rem 0;
}

/* Status Section */
.status-section {
    margin: 4rem 0;
}

.status-section .contribute {
    margin-top: 1.5rem;
    font-size: 1rem;
    color: var(--text-dim);
}

.status-section .contribute a {
    color: var(--green-light);
    text-decoration: none;
}

.status-section .contribute a:hover {
    text-decoration: underline;
}


/* Footer */
footer {
    margin-top: 5rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.9rem;
}

footer a {
    color: var(--text-dim);
    text-decoration: none;
}

footer a:hover {
    color: var(--green-light);
}


/* Syntax highlighting */
.kw { color: #81A1C1; font-weight: 500; }
.ty { color: #8FBCBB; }
.fn { color: #88C0D0; }
.str { color: #A3BE8C; }
.cmt { color: #616E88; font-style: italic; }

/* Responsive */
@media (max-width: 768px) {
    .tagline {
        font-size: 2rem;
    }

    .hero-logo {
        height: 60px;
    }

    .subtitle {
        font-size: 1.05rem;
    }

    .cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .nav-links {
        gap: 1rem;
    }

    .navbar .status {
        display: none;
    }

    pre {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.7rem 0.6rem;
        font-size: 0.9rem;
    }

    .tradeoff-box {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}