:root {
    color-scheme: dark;
    --bg: #0f1020;
    --surface: #17182a;
    --surface-2: #1e1b2e;
    --text: #f7f7fb;
    --muted: #b8b8c9;
    --line: rgba(255, 255, 255, .12);
    --primary: #6d28d9;
    --primary-2: #a78bfa;
    --accent: #2dd4bf;
    --danger: #ef4444;
    --success: #22c55e;
    --radius: 8px;
    --shadow: 0 20px 50px rgba(0, 0, 0, .25);
    --container: 1120px;
    --space: 1rem;
    font-family: Inter, "Noto Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="light"] {
    color-scheme: light;
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-2: #eef2ff;
    --text: #111827;
    --muted: #4b5563;
    --line: rgba(15, 23, 42, .14);
    --shadow: 0 18px 45px rgba(15, 23, 42, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background:
        linear-gradient(145deg, rgba(109, 40, 217, .20), transparent 34rem),
        linear-gradient(315deg, rgba(45, 212, 191, .10), transparent 26rem),
        var(--bg);
    color: var(--text);
    line-height: 1.65;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: rgba(167, 139, 250, .5); text-underline-offset: .18em; }
a:hover { color: var(--primary-2); }
button, input, textarea, select { font: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .75rem; letter-spacing: 0; }
h1 { font-size: clamp(2.25rem, 7vw, 4.8rem); max-width: 12ch; }
h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; color: var(--muted); }

.container { width: min(var(--container), calc(100% - 2rem)); margin-inline: auto; }
.skip-link {
    position: absolute;
    left: 1rem;
    top: -10rem;
    background: var(--accent);
    color: #042f2e;
    padding: .6rem .8rem;
    border-radius: var(--radius);
    z-index: 20;
}
.skip-link:focus { top: 1rem; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in srgb, var(--bg) 86%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; text-decoration: none; }
.brand-mark {
    width: 2.35rem;
    height: 2.35rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: .82rem;
}
.nav-menu { display: flex; align-items: center; gap: .35rem; }
.nav-menu a, .admin-sidebar nav a {
    text-decoration: none;
    color: var(--muted);
    padding: .55rem .7rem;
    border-radius: var(--radius);
}
.nav-menu a:hover, .nav-menu a[aria-current="page"], .admin-sidebar nav a[aria-current="page"] {
    color: var(--text);
    background: rgba(167, 139, 250, .12);
}
.nav-toggle, .theme-toggle {
    display: none;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    border-radius: var(--radius);
    min-width: 2.5rem;
    min-height: 2.5rem;
}
.theme-toggle { display: inline-grid; place-items: center; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.7rem;
    padding: .72rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    background: var(--primary);
    color: white;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}
.button:hover { color: white; background: #7c3aed; }
.button-secondary { background: var(--accent); color: #042f2e; }
.button-secondary:hover { background: #5eead4; color: #042f2e; }
.button-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.button-small { min-height: 2.15rem; padding: .45rem .7rem; font-size: .9rem; }
.button-danger { background: var(--danger); }
.actions, .card-actions, .row-actions { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; }

.hero { padding: 6rem 0 3.5rem; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .7fr); gap: 2rem; align-items: center; }
.hero-copy p { max-width: 62ch; }
.eyebrow {
    color: var(--accent);
    text-transform: uppercase;
    font-size: .78rem;
    letter-spacing: .08em;
    font-weight: 800;
}
.hero-panel, .app-card, .post-card, .form-panel, .panel, .stat-grid article {
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hero-panel { padding: 2rem; min-height: 330px; display: flex; flex-direction: column; justify-content: end; }
.hero-panel h2 { font-size: clamp(2rem, 5vw, 3.2rem); }
.badge {
    display: inline-flex;
    width: max-content;
    padding: .25rem .55rem;
    border-radius: 999px;
    background: rgba(45, 212, 191, .12);
    color: var(--accent);
    font-size: .78rem;
    font-weight: 800;
}
.metric-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; margin-top: 1rem; }
.metric-row span { border: 1px solid var(--line); border-radius: var(--radius); padding: .75rem; color: var(--muted); }
.metric-row strong { display: block; color: var(--text); }

.section, .page-hero { padding: 3rem 0; }
.page-hero h1 { max-width: 16ch; }
.page-hero p { max-width: 62ch; }
.section-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1.25rem; }
.card-grid, .post-grid, .stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}
.app-card, .post-card { padding: 1rem; }
.featured-card { border-color: rgba(167, 139, 250, .55); background: linear-gradient(180deg, rgba(109, 40, 217, .18), rgba(23, 24, 42, .92)); }
.app-shot {
    aspect-ratio: 16 / 9;
    display: grid;
    place-items: center;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(109, 40, 217, .75), rgba(45, 212, 191, .45));
    font-size: 2rem;
    font-weight: 900;
}
.meta, .form-note { color: var(--muted); font-size: .92rem; }

.filter-row, .pagination { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.25rem; }
.filter-row a, .pagination a {
    padding: .5rem .75rem;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    text-decoration: none;
    color: var(--muted);
}
.filter-row a.active, .pagination a.active { background: var(--primary); color: white; border-color: var(--primary); }

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 2rem;
    padding: 3rem 0;
}
.article-head, .article-content { grid-column: 1; }
.article-head h1 { max-width: 18ch; }
.cover { border-radius: var(--radius); border: 1px solid var(--line); margin-top: 1rem; }
.toc {
    grid-column: 2;
    grid-row: 1 / span 2;
    position: sticky;
    top: 96px;
    align-self: start;
    border-left: 1px solid var(--line);
    padding-left: 1rem;
}
.toc a { display: block; color: var(--muted); text-decoration: none; padding: .25rem 0; }
.toc-l3 { margin-left: .75rem; }
.article-content {
    font-size: 1.06rem;
    max-width: 760px;
}
.article-content h2, .article-content h3 { margin-top: 2rem; }
.article-content code { background: var(--surface-2); padding: .1rem .3rem; border-radius: 4px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.check-list { padding-left: 1.2rem; color: var(--muted); }
.narrow { max-width: 760px; }
.auth-shell { min-height: 70vh; display: grid; grid-template-columns: 1fr minmax(280px, 440px); gap: 2rem; align-items: center; padding-block: 4rem; }
.form-panel, .panel { padding: 1rem; }
label { display: grid; gap: .35rem; color: var(--text); font-weight: 700; margin-bottom: .85rem; }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    border-radius: var(--radius);
    padding: .72rem .8rem;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus, button:focus-visible, a:focus-visible {
    outline: 3px solid rgba(45, 212, 191, .45);
    outline-offset: 2px;
}
.alert { padding: .75rem 1rem; border-radius: var(--radius); margin-block: 1rem; border: 1px solid var(--line); }
.alert-success { background: rgba(34, 197, 94, .12); color: #bbf7d0; }
.alert-error { background: rgba(239, 68, 68, .12); color: #fecaca; }

.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; margin-top: 2rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 1rem; }
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; }

.admin-body { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 100vh; }
.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 1rem;
    border-right: 1px solid var(--line);
    background: var(--surface);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.admin-sidebar nav { display: grid; gap: .25rem; }
.admin-main { padding: 1.25rem; min-width: 0; }
.admin-head { display: flex; justify-content: space-between; gap: 1rem; align-items: center; margin-bottom: 1rem; }
.stat-grid article { padding: 1rem; }
.stat-grid strong { display: block; font-size: 2rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { text-align: left; padding: .8rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-size: .85rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.check-inline { display: flex; align-items: center; gap: .6rem; }
.check-inline input { width: auto; }

@media (max-width: 860px) {
    h1 { font-size: 2.45rem; }
    .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
    .nav-menu {
        position: absolute;
        inset: 72px 1rem auto 1rem;
        display: none;
        flex-direction: column;
        align-items: stretch;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        padding: .6rem;
    }
    .nav-menu.is-open { display: flex; }
    .hero-grid, .card-grid, .post-grid, .split, .auth-shell, .article-layout, .form-grid { grid-template-columns: 1fr; }
    .toc { position: static; grid-column: 1; grid-row: auto; border-left: 0; border-top: 1px solid var(--line); padding: 1rem 0 0; }
    .admin-body { grid-template-columns: 1fr; }
    .admin-sidebar { position: static; height: auto; }
    .admin-main { padding: 1rem; }
    .footer-grid, .section-head, .admin-head { align-items: start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}