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

:root {
    --navy: #0c1a2e;
    --navy-mid: #0f2340;
    --navy-light: #162c4a;
    --blue-intense: #1d4ed8;
    --blue-bright: #3b82f6;
    --blue-accent: #60a5fa;
    --white: #f0f6ff;
    --gray-mid: #7a9cbe;
    --gray-dark: #4a6a8a;
    --font-main: "Sora", sans-serif;
    --font-mono: "Source Code Pro", monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--navy);
    color: var(--white);
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

.grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(rgba(29, 78, 216, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(29, 78, 216, 0.08) 1px, transparent 1px);
    background-size: 48px 48px;
}

.wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* ── Nav ── */

nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(12, 26, 46, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(29, 78, 216, 0.25);
}

.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--white);
    text-decoration: none;
}

.nav-logo span {
    color: var(--blue-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    font-size: 0.85rem;
    color: var(--gray-mid);
    text-decoration: none;
    transition: color 0.2s;
}

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

.lang-switch {
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
}

#lang-switcher {
    display: flex;
    align-items: center;
}

.lang-btn {
    background: none;
    border: 1px solid rgba(29, 78, 216, 0.3);
    color: var(--gray-mid);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.lang-btn:hover {
    color: var(--white);
    border-color: var(--blue-bright);
}

.lang-select {
    background: var(--navy-mid);
    border: 1px solid rgba(29, 78, 216, 0.3);
    color: var(--gray-mid);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.lang-select:hover,
.lang-select:focus {
    border-color: var(--blue-bright);
    outline: none;
    color: var(--white);
}

/* ── Hero ── */

.hero {
    padding: 7rem 0 5rem;
    text-align: center;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--blue-bright);
    letter-spacing: 0.12em;
    margin-bottom: 1.5rem;
}

.hero-label::before {
    content: "// ";
}

.hero h1 {
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.hero h1 em {
    font-style: normal;
    color: var(--blue-accent);
}

.hero-sub {
    font-size: 1.05rem;
    color: var(--gray-mid);
    max-width: 580px;
    margin: 0 auto 2.5rem;
    line-height: 1.75;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.6rem;
    border-radius: 6px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--blue-intense);
    color: var(--white);
    border: 1px solid var(--blue-intense);
}

.btn-primary:hover {
    background: var(--blue-bright);
    border-color: var(--blue-bright);
}

.btn-ghost {
    background: transparent;
    color: var(--blue-accent);
    border: 1px solid rgba(59, 130, 246, 0.35);
}

.btn-ghost:hover {
    border-color: var(--blue-bright);
    color: var(--white);
}

.badge-strip {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(29, 78, 216, 0.2);
}

.badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray-dark);
    background: rgba(22, 44, 74, 0.7);
    border: 1px solid rgba(29, 78, 216, 0.2);
    border-radius: 4px;
    padding: 0.3rem 0.75rem;
}

/* ── Section shared ── */

.section-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--blue-bright);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-label::before {
    content: "// ";
}

/* ── Tabs ── */

.tabs-wrap {
    margin-top: 1.5rem;
}

.tab-bar {
    display: flex;
    gap: 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.3);
    flex-wrap: wrap;
}

.tab-btn {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--gray-dark);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: -1px;
}

.tab-btn.active {
    color: var(--blue-accent);
    border-bottom-color: var(--blue-accent);
}

.tab-btn:hover:not(.active) {
    color: var(--gray-mid);
}

.tab-panel {
    display: none;
    background: var(--navy-mid);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 1.5rem;
    overflow-x: auto;
}

.tab-panel.active {
    display: block;
}

.subtab-bar {
    display: flex;
    gap: 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.subtab-btn {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--gray-dark);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.4rem 1rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: -1px;
}

.subtab-btn.active {
    color: var(--blue-accent);
    border-bottom-color: var(--blue-accent);
}

.subtab-btn:hover:not(.active) {
    color: var(--gray-mid);
}

.subtab-panel {
    display: none;
}

.subtab-panel.active {
    display: block;
}

.code-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(59, 130, 246, 0.12);
}

/* ── Code blocks ── */

pre {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.75;
    color: var(--gray-mid);
    white-space: pre;
}

.kw  { color: var(--blue-accent); }
.cm  { color: var(--gray-dark); }
.tag { color: #f9a8d4; }
.attr { color: var(--blue-bright); }
.val { color: #86efac; }
.type { color: #c4b5fd; }
.str { color: #86efac; }

/* ── Comparison tables ── */

.why,
.modes {
    margin: 5rem 0;
}

.cmp-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    font-size: 0.875rem;
}

.cmp-table th,
.cmp-table td {
    padding: 0.85rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(29, 78, 216, 0.2);
}

.cmp-table th {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--blue-accent);
    font-weight: 500;
    letter-spacing: 0.04em;
    background: var(--navy-light);
}

.cmp-table td {
    color: var(--gray-mid);
}

.cmp-table code {
    font-family: var(--font-mono);
    font-size: 0.8em;
    color: var(--blue-accent);
}

.yes  { color: #86efac; }
.no   { color: #f87171; }
.warn { color: #fbbf24; }

/* ── Examples ── */

.examples {
    margin: 5rem 0;
}

/* ── Docs ── */

.docs {
    margin: 5rem 0;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
    margin-top: 2rem;
}

.docs-item {
    background: var(--navy-light);
    border: 1px solid rgba(29, 78, 216, 0.2);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    text-decoration: none;
    display: block;
    transition: border-color 0.2s;
}

.docs-item:hover {
    border-color: rgba(59, 130, 246, 0.5);
}

.docs-name {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--blue-accent);
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.docs-desc {
    font-size: 0.8rem;
    color: var(--gray-mid);
}

.docs-item.featured {
    background: var(--navy-mid);
    border-color: var(--blue-bright);
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.docs-item.featured .docs-name {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.docs-link-open {
    display: inline-block;
    margin-top: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--blue-accent);
    text-decoration: none;
    transition: color 0.2s;
}

.docs-link-open:hover {
    color: var(--white);
}

#docs-version-wrap {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.version-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray-dark);
}

.version-select {
    background: var(--navy);
    border: 1px solid rgba(59, 130, 246, 0.35);
    color: var(--blue-accent);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.version-select:hover,
.version-select:focus {
    border-color: var(--blue-bright);
    outline: none;
}

/* ── Install ── */

.install {
    margin: 5rem 0;
}

.install-block {
    border: 1px solid var(--blue-bright);
    border-radius: 8px;
    background: var(--navy-mid);
    padding: 1.5rem;
    overflow-x: auto;
    margin-top: 1.5rem;
}

/* ── Support ── */

.support {
    margin: 5rem 0;
}

.support-box {
    background: var(--navy-light);
    border: 1px solid rgba(29, 78, 216, 0.25);
    border-radius: 8px;
    padding: 2rem;
    margin-top: 1.5rem;
    text-align: center;
}

.support-box p {
    font-size: 0.9rem;
    color: var(--gray-mid);
    margin-bottom: 1.5rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn-coffee {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1.4rem;
    border-radius: 6px;
    font-family: var(--font-main);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    background: #ffdd00;
    color: #1a1a1a;
    border: 1px solid #ffdd00;
    transition: all 0.2s;
}

.btn-coffee:hover {
    background: #f5d000;
}

.btn-sponsors {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1.4rem;
    border-radius: 6px;
    font-family: var(--font-main);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    background: #ea4aaa;
    color: #fff;
    border: 1px solid #ea4aaa;
    transition: all 0.2s;
}

.btn-sponsors:hover {
    background: #d93d99;
}

.btn-icon {
    width: 18px;
    height: 18px;
    display: inline-block;
    vertical-align: middle;
}

/* ── Footer ── */

footer {
    border-top: 1px solid rgba(29, 78, 216, 0.2);
    padding: 2.5rem 0;
    margin-top: 5rem;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--gray-mid);
    margin-bottom: 0.5rem;
}

.footer-logo span {
    color: var(--blue-accent);
}

.footer-links {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0.4rem;
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--blue-accent);
    text-decoration: none;
}

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

.footer-copy {
    font-size: 0.78rem;
    color: var(--gray-dark);
    margin-top: 0.75rem;
}

.footer-copy a {
    color: var(--gray-dark);
    text-decoration: none;
}

.footer-copy a:hover {
    color: var(--blue-accent);
}