:root,
[data-theme="light"] {
    --font-body: 'General Sans', sans-serif;
    --font-display: 'Cabinet Grotesk', sans-serif;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-2: #edf2f7;
    --line: #d9e2ec;
    --text: #101828;
    --muted: #667085;
    --primary: #0057ff;
    --primary-soft: #deebff;
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 30px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 28px 70px rgba(15, 23, 42, 0.12);
    --container: 1360px;
    --header-h: 78px;
    --transition: 220ms cubic-bezier(.16, 1, .3, 1);
}

[data-theme="dark"] {
    --bg: #0e1117;
    --surface: #141a22;
    --surface-2: #1b2330;
    --line: #2a3544;
    --text: #edf2f7;
    --muted: #98a5b3;
    --primary: #76a5ff;
    --primary-soft: #1b2a47;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28);
    --shadow-md: 0 16px 40px rgba(0, 0, 0, 0.36);
    --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.46);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    color: var(--text);
    background:
        radial-gradient(circle at top right, rgba(0, 87, 255, .10), transparent 20%),
        radial-gradient(circle at left bottom, rgba(0, 163, 163, .08), transparent 22%),
        var(--bg);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; height: auto; }
button, input, select { font: inherit; }

.hidden { display: none !important; }

.skip-link {
    position: absolute;
    left: -9999px;
    top: 12px;
    z-index: 999;
    background: var(--primary);
    color: #fff;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
}
.skip-link:focus { left: 12px; }

.container {
    width: min(calc(100% - 24px), var(--container));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 220;
    backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    transition: transform var(--transition);
}
.site-header.hide { transform: translateY(-100%); }

.header-inner {
    min-height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 60%, #94bbff));
    box-shadow: var(--shadow-sm);
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: -0.03em;
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}
.desktop-nav a {
    color: var(--muted);
    font-size: 15px;
    font-weight: 600;
    transition: color var(--transition);
}
.desktop-nav a:hover,
.desktop-nav a.active { color: var(--primary); }

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-btn,
.menu-btn {
    width: 46px;
    height: 46px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    background: var(--surface);
    color: var(--text);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: transform var(--transition), border-color var(--transition);
}
.icon-btn:hover,
.menu-btn:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--primary) 30%, var(--line));
}
.menu-btn { display: none; }

.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 320;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}
.mobile-nav.open {
    opacity: 1;
    pointer-events: auto;
}
.mobile-nav-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .48);
}
.mobile-nav-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(88vw, 360px);
    height: 100%;
    background: var(--surface);
    border-left: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    box-shadow: var(--shadow-lg);
    padding: 22px;
    transform: translateX(100%);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.mobile-nav.open .mobile-nav-panel { transform: translateX(0); }
.mobile-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mobile-links {
    display: grid;
    gap: 8px;
}
.mobile-links a {
    padding: 14px 16px;
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg) 40%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
    font-weight: 600;
}
.mobile-links a.active {
    background: var(--primary-soft);
    color: var(--primary);
}

.blog-hero {
    padding: 28px 0 20px;
}
.blog-hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}
.hero-main,
.featured-post,
.post-card,
.sidebar-card,
.empty-state {
    border-radius: var(--radius-xl);
    border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    box-shadow: var(--shadow-md);
    background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 98%, white 2%), var(--surface-2));
}
.hero-main {
    padding: clamp(24px, 4vw, 42px);
    position: relative;
    overflow: hidden;
}
.hero-main::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -70px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 87, 255, .18), transparent 68%);
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 800;
    color: var(--primary);
    background: var(--primary-soft);
    margin-bottom: 16px;
}
h1, h2, h3, h4, p { margin-top: 0; }
h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 4.8rem);
    line-height: .96;
    letter-spacing: -0.05em;
    margin-bottom: 14px;
    max-width: 12ch;
}
.hero-main p,
.section-head p,
.featured-content p,
.post-content p,
.sidebar-empty {
    color: var(--muted);
}

.hero-stats {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.hero-stat {
    padding: 16px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.hero-stat strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.3rem;
}
.hero-stat span {
    color: var(--muted);
    font-size: 14px;
}

.section-head {
    margin: 26px 0 18px;
}
.section-head h2,
.sidebar-head h3 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2vw, 2.15rem);
    letter-spacing: -0.04em;
    margin-bottom: 8px;
}

.featured-post {
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
}
.featured-image-wrap,
.post-image-wrap {
    display: block;
    overflow: hidden;
    background: color-mix(in srgb, var(--text) 4%, var(--surface));
}
.featured-image-wrap img,
.post-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}
.featured-post:hover img,
.post-card:hover img {
    transform: scale(1.03);
}
.featured-content,
.post-content {
    padding: 22px;
}
.post-meta-row,
.post-footer-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    color: var(--muted);
    font-size: 14px;
}
.post-meta-row { margin-bottom: 12px; }
.post-footer-row {
    margin-top: 16px;
    justify-content: space-between;
}
.featured-content h3,
.post-content h3 {
    font-family: var(--font-display);
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 10px;
}
.featured-content h3 { font-size: clamp(1.5rem, 2vw, 2.2rem); }
.post-content h3 { font-size: 1.35rem; }
.read-link {
    color: var(--primary);
    font-weight: 700;
}
.post-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--primary);
    background: var(--primary-soft);
}

.blog-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 22px;
    align-items: start;
    margin-top: 26px;
}
.content-column { min-width: 0; }
.sidebar-column {
    display: grid;
    gap: 18px;
    position: sticky;
    top: 100px;
}

.toolbar {
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 14px;
    margin-bottom: 18px;
}
.search-wrap input,
.filter-wrap select {
    width: 100%;
    min-height: 52px;
    border-radius: 18px;
    border: 1px solid color-mix(in srgb, var(--text) 12%, transparent);
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    color: var(--text);
    padding: 0 16px;
    outline: none;
}
.search-wrap input:focus,
.filter-wrap select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 14%, transparent);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.post-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.post-image-wrap { aspect-ratio: 16 / 9; }
.post-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sidebar-card {
    padding: 20px;
}
.category-list,
.recent-list {
    display: grid;
    gap: 12px;
}
.category-item,
.recent-item {
    padding: 12px 14px;
    border-radius: 16px;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.category-item {
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    cursor: pointer;
    color: var(--text);
}
.category-item strong {
    color: var(--primary);
}
.recent-item {
    display: block;
}
.recent-title {
    display: block;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}
.recent-meta {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.empty-state {
    padding: 34px 24px;
    text-align: center;
}

.site-footer {
    padding: 28px 0 44px;
    color: var(--muted);
}
.footer-inner {
    border-top: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

body.menu-open { overflow: hidden; }

@media (max-width: 1120px) {
    .desktop-nav { display: none; }
    .menu-btn { display: grid; }
    .featured-post,
    .blog-layout {
        grid-template-columns: 1fr;
    }
    .sidebar-column { position: static; }
}

@media (max-width: 900px) {
    .posts-grid,
    .hero-stats,
    .toolbar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .header-inner { min-height: 72px; }
    .posts-grid,
    .hero-stats {
        grid-template-columns: 1fr;
    }
    h1 { max-width: 100%; }
    .post-footer-row { justify-content: flex-start; }
}

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