:root {
    --bg:         #0f0f11;
    --surface:    #17171a;
    --surface2:   #1e1e23;
    --border:     #2a2a31;
    --border-hi:  #3d3d48;
    --accent:     #e8ff47;
    --accent-dim: #b8cc2e;
    --text:       #e8e8ec;
    --text-dim:   #7a7a8a;
    --text-muted: #45454f;
    --danger:     #ff4d4d;
    --radius:     6px;
    --radius-lg:  12px;
    --font-ui:    'Syne', sans-serif;
    --font-mono:  'DM Mono', monospace;
    --content-w:  960px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-ui);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

/* ── Header ── */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-ui);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--text);
}
.logo-icon { font-size: 20px; color: var(--accent); line-height: 1; }
.logo-text strong { color: var(--accent); }
.header-actions { display: flex; gap: 10px; align-items: center; }

/* ── Buttons ── */
.btn {
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: #0f0f11; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn-ghost { background: transparent; color: var(--text-dim); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--border-hi); color: var(--text); background: var(--surface2); }

/* ── Breadcrumb ── */
.breadcrumb {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 6px;
    align-items: center;
}
.breadcrumb a { color: var(--text-dim); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text-muted); }

/* ── Page wrap ── */
.page-wrap {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 60px 24px 100px;
}

/* ── Blog hero ── */
.blog-hero {
    margin-bottom: 56px;
}
.blog-label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    display: inline-block;
    margin-bottom: 14px;
}
.blog-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 14px;
}
.blog-title em {
    font-style: normal;
    color: var(--accent);
}
.blog-lead {
    font-size: 16px;
    color: var(--text-dim);
    max-width: 560px;
    line-height: 1.7;
}

/* ── Section label ── */
.section-label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.article-count {
    background: var(--surface2);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2px 10px;
    font-size: 11px;
}

/* ── Article grid ── */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

/* ── Article card ── */
.article-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
    position: relative;
    overflow: hidden;
}
.article-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}
.article-card:hover {
    border-color: var(--border-hi);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.article-card:hover::before {
    transform: scaleX(1);
}

.card-cat {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
}
.card-title {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
    line-height: 1.3;
}
.card-excerpt {
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.6;
    flex: 1;
}
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.card-meta {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}
.card-arrow {
    font-size: 16px;
    color: var(--text-muted);
    transition: color 0.15s, transform 0.15s;
}
.article-card:hover .card-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* ── CTA banner ── */
.cta-banner {
    margin-top: 64px;
    background: var(--surface);
    border: 1px solid var(--border-hi);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 0%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 70%);
    pointer-events: none;
}
.cta-banner-title {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
    position: relative;
}
.cta-banner-sub {
    font-size: 15px;
    color: var(--text-dim);
    margin-bottom: 28px;
    position: relative;
}
.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}
.cta-actions a.btn-primary {
    background: var(--accent);
    color: #0f0f11;
    border-color: var(--accent);
    text-decoration: none;
    font-size: 15px;
    padding: 12px 28px;
}
.cta-actions a.btn-primary:hover {
    background: var(--accent-dim);
    border-color: var(--accent-dim);
    color: #0f0f11;
}
.cta-actions a.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border-color: var(--border);
    text-decoration: none;
    font-size: 15px;
    padding: 12px 28px;
}
.cta-actions a.btn-ghost:hover {
    border-color: var(--border-hi);
    color: var(--text);
    background: var(--surface2);
}
.cta-actions a svg { fill: #0f0f11; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 3px; }

/* ── Mobile ── */
@media (max-width: 640px) {
    .page-wrap { padding: 36px 16px 80px; }
    .app-header { padding: 12px 16px; }
    .breadcrumb { padding: 10px 16px; }
    .cta-banner { padding: 28px 20px; }
    .article-grid { grid-template-columns: 1fr; }
}