/*
Theme Name: N₂OAtlas
Theme URI: https://n2oatlas.ru
Author: N₂OAtlas Editorial
Description: Картографический журнал о закиси азота — климат, химия, медицина, космос. Атлас знаний о молекуле N₂O.
Version: 1.0.0
Tags: right-sidebar, custom-colors, custom-logo, featured-images, science
Text Domain: n2oatlas
*/

/* ============================================================
   N₂OAtlas — Atlas / Cartography Aesthetic
   Deep purple bg, violet accent, lavender, gold highlight
   Content + RIGHT sidebar layout (1fr 300px)
   ============================================================ */

:root {
    --bg-dark:     #1a0a2e;
    --bg-light:    #ede9fe;
    --bg-card:     #ffffff;
    --border:      #e2d9f3;
    --accent:      #7c3aed;
    --accent-2:    #a78bfa;
    --gold:        #f59e0b;
    --fg-dark:     #ffffff;
    --fg-body:     #1a0a2e;
    --fg-muted:    #6b5a8f;
    --dot-color:   rgba(124, 58, 237, 0.08);

    /* Typography */
    --font-heading: 'Raleway', sans-serif;
    --font-body:    'Vollkorn', Georgia, serif;
    --font-mono:    'Fira Mono', monospace;

    /* Layout */
    --sidebar-width: 300px;
    --content-max:   1200px;
    --gutter:        24px;
    --radius:        4px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    background-color: var(--bg-light);
    color: var(--fg-body);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
}

/* Dot-grid background pattern */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    text-wrap: balance;
    color: var(--fg-body);
    margin-top: 0;
}

/* ============================================================
   Reading Progress Bar
   ============================================================ */
#atlas-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent);
    z-index: 9999;
    transition: width 0.1s linear;
}

/* ============================================================
   Site Header
   ============================================================ */
.site-header {
    background: var(--bg-dark);
    color: var(--fg-dark);
    position: relative;
    z-index: 100;
}

.header-top {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 20px var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
}

.site-branding:hover { text-decoration: none; }

.logo-svg { flex-shrink: 0; }

.brand-text { display: flex; flex-direction: column; }

.site-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--fg-dark);
    letter-spacing: -0.02em;
    margin: 0;
    line-height: 1;
}

.site-title span { color: var(--gold); }

.site-tagline {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--accent-2);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 4px;
}

/* Primary Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

#primary-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

#primary-menu li a {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fg-dark);
    padding: 8px 12px;
    border-radius: var(--radius);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0.85;
    transition: opacity 0.2s, background 0.2s;
}

#primary-menu li a:hover,
#primary-menu li.current-menu-item a {
    opacity: 1;
    background: rgba(124, 58, 237, 0.3);
    text-decoration: none;
}

.search-btn {
    background: none;
    border: 1px solid rgba(167, 139, 250, 0.4);
    color: var(--accent-2);
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s;
    font-size: 1rem;
    padding: 0;
}

.search-btn:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: var(--accent-2);
}

/* Burger */
.burger-btn {
    display: none;
    background: none;
    border: 1px solid rgba(167, 139, 250, 0.4);
    color: var(--fg-dark);
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    padding: 0;
}

/* Category Strip */
.category-strip {
    background: rgba(0,0,0,0.3);
    border-top: 1px solid rgba(167,139,250,0.2);
    border-bottom: 1px solid rgba(167,139,250,0.2);
}

.category-strip-inner {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: flex;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.category-strip-inner::-webkit-scrollbar { display: none; }

.category-strip-inner a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent-2);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 8px 14px;
    white-space: nowrap;
    border-right: 1px solid rgba(167,139,250,0.15);
    transition: background 0.2s, color 0.2s;
}

.category-strip-inner a:first-child { padding-left: 0; }
.category-strip-inner a:hover { color: var(--gold); text-decoration: none; background: rgba(124,58,237,0.1); }

/* Mobile Nav */
#js-mobile-nav {
    display: none;
    background: var(--bg-dark);
    border-top: 1px solid rgba(167,139,250,0.2);
    padding: 16px var(--gutter);
}

#js-mobile-nav.is-open { display: block; }

#js-mobile-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#js-mobile-nav ul li a {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fg-dark);
    padding: 10px 0;
    border-bottom: 1px solid rgba(167,139,250,0.1);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ============================================================
   Site Layout
   ============================================================ */
.site-main {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    position: relative;
    z-index: 1;
}

.content-sidebar-wrap {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: 40px;
    padding: 40px 0;
    align-items: start;
}

.site-content { min-width: 0; }

/* ============================================================
   Hero — Atlas Spread
   ============================================================ */
.atlas-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3px;
    background: var(--bg-dark);
    margin: 0 calc(-1 * var(--gutter));
    position: relative;
    z-index: 1;
}

.hero-featured {
    position: relative;
    min-height: 480px;
    overflow: hidden;
}

.hero-featured-img {
    position: absolute;
    inset: 0;
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.hero-featured-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d1460 0%, #1a0a2e 100%);
}

.hero-featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,10,46,0.95) 0%, rgba(26,10,46,0.3) 60%, transparent 100%);
}

.hero-featured-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    color: var(--fg-dark);
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 8px;
    display: block;
}

.hero-featured-content h2 {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--fg-dark);
    margin-bottom: 12px;
    text-wrap: balance;
}

.hero-featured-content h2 a { color: inherit; }
.hero-featured-content h2 a:hover { text-decoration: none; color: var(--accent-2); }

.hero-featured-meta {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: rgba(255,255,255,0.6);
    letter-spacing: 0.08em;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 3px;
}

.hero-grid-item {
    position: relative;
    min-height: 238px;
    overflow: hidden;
    background: var(--bg-dark);
}

.hero-grid-item-img {
    position: absolute;
    inset: 0;
    object-fit: cover;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.hero-grid-item-placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #2d1460 0%, #1a0a2e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}

.hero-grid-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,10,46,0.9) 0%, transparent 60%);
}

.hero-grid-item-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    color: var(--fg-dark);
}

.hero-grid-item-content .hero-eyebrow { font-size: 0.6rem; }

.hero-grid-item-content h3 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--fg-dark);
    margin: 0;
    line-height: 1.3;
}

.hero-grid-item-content h3 a { color: inherit; }

/* ============================================================
   Section Headers — Atlas Aesthetic
   ============================================================ */
.atlas-section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 40px 0 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
    position: relative;
}

.atlas-section-header::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--accent);
}

.atlas-section-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-2);
    background: var(--bg-dark);
    color: var(--accent-2);
    padding: 4px 10px;
    border-radius: 2px;
}

.atlas-section-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--fg-body);
    margin: 0;
}

/* ============================================================
   Card Grid
   ============================================================ */
.atlas-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ============================================================
   Atlas Card
   ============================================================ */
.atlas-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.25s, transform 0.25s;
    opacity: 0;
    transform: translateY(16px);
}

.atlas-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease, box-shadow 0.25s, border-color 0.25s;
}

.atlas-card:hover {
    box-shadow: 0 4px 24px rgba(124, 58, 237, 0.18), 0 0 0 1px rgba(124,58,237,0.12);
    transform: translateY(-2px);
}

.card-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-dark);
}

.card-image img,
.card-image .card-placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-placeholder { display: block; }

.card-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 8px;
}

.card-category {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--fg-body);
    margin: 0;
    line-height: 1.35;
}

.card-title a { color: inherit; }
.card-title a:hover { color: var(--accent); text-decoration: none; }

.card-excerpt {
    font-size: 0.82rem;
    color: var(--fg-muted);
    margin: 0;
    line-height: 1.5;
    flex: 1;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-muted);
    letter-spacing: 0.06em;
    padding-top: 8px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.card-meta span { display: flex; align-items: center; gap: 4px; }

/* ============================================================
   Load More
   ============================================================ */
.load-more-wrap {
    text-align: center;
    padding: 32px 0;
}

.btn-load-more {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    background: transparent;
    border: 1px solid var(--accent);
    padding: 12px 32px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-load-more:hover {
    background: var(--accent);
    color: #fff;
}

.btn-load-more:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================================
   Sidebar
   ============================================================ */
.widget-area {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.atlas-widget {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.widget-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--fg-dark);
    background: var(--bg-dark);
    padding: 10px 16px;
    margin: 0;
    border-bottom: 2px solid var(--accent);
}

.widget-body { padding: 16px; }

/* Coordinates Box */
.atlas-coords {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--fg-body);
}

.coords-location {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.coords-data-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
}

.coords-data-row:last-child { border-bottom: none; }

.coords-label {
    color: var(--fg-muted);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
}

.coords-value {
    font-weight: 600;
    color: var(--fg-body);
    font-size: 0.8rem;
}

.coords-value.highlight { color: var(--gold); }

/* Popular Posts */
.popular-post-item {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
}

.popular-post-item:last-child { border-bottom: none; }

.popular-post-thumb {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-dark);
}

.popular-post-thumb img { width: 100%; height: 100%; object-fit: cover; }

.popular-post-info { min-width: 0; flex: 1; }

.popular-post-title {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--fg-body);
    line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.popular-post-title a { color: inherit; }
.popular-post-title a:hover { color: var(--accent); }

.popular-post-views {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-muted);
    letter-spacing: 0.06em;
}

/* GWP Calculator */
.gwp-calc input[type="number"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--fg-body);
    background: var(--bg-light);
    margin-bottom: 8px;
    outline: none;
    transition: border-color 0.2s;
}

.gwp-calc input[type="number"]:focus { border-color: var(--accent); }

.gwp-calc label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
    display: block;
    margin-bottom: 4px;
}

.gwp-calc button {
    width: 100%;
    padding: 8px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
    margin-bottom: 12px;
}

.gwp-calc button:hover { background: var(--accent-2); }

.gwp-result {
    display: none;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--fg-body);
}

.gwp-result.show { display: block; }

.gwp-result-row {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
}

.gwp-result-row strong { color: var(--accent); }

/* Categories */
.cats-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.cats-list li {
    border-bottom: 1px solid var(--border);
}

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

.cats-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fg-body);
    transition: color 0.2s;
}

.cats-list li a:hover { color: var(--accent); text-decoration: none; }

.cat-count {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--fg-muted);
    background: var(--bg-light);
    padding: 2px 6px;
    border-radius: 10px;
}

/* Timeline */
.n2o-timeline {
    position: relative;
    padding-left: 20px;
}

.n2o-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2));
}

.timeline-item {
    position: relative;
    padding-bottom: 14px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -17px;
    top: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--bg-card);
}

.timeline-year {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 0.08em;
    margin-bottom: 2px;
}

.timeline-event {
    font-size: 0.78rem;
    color: var(--fg-body);
    line-height: 1.4;
}

/* Tags Cloud */
.tags-cloud { display: flex; flex-wrap: wrap; gap: 6px; }

.tags-cloud a {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    color: var(--accent);
    background: rgba(124,58,237,0.08);
    border: 1px solid rgba(124,58,237,0.2);
    padding: 3px 8px;
    border-radius: 2px;
    transition: background 0.2s, color 0.2s;
}

.tags-cloud a:hover {
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-color: var(--accent);
}

/* Subscribe form */
.subscribe-form { display: flex; flex-direction: column; gap: 8px; }

.subscribe-form input[type="email"] {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--fg-body);
    background: var(--bg-light);
    outline: none;
    transition: border-color 0.2s;
}

.subscribe-form input[type="email"]:focus { border-color: var(--accent); }

.subscribe-form button {
    width: 100%;
    padding: 10px;
    background: var(--gold);
    color: #1a0a2e;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
}

.subscribe-form button:hover { background: #e08f00; }

.subscribe-note {
    font-size: 0.68rem;
    color: var(--fg-muted);
    text-align: center;
    line-height: 1.4;
}

/* ============================================================
   Single Post
   ============================================================ */
.single-post-wrap { max-width: 780px; }

.breadcrumbs {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--fg-muted);
    letter-spacing: 0.08em;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.breadcrumbs a { color: var(--accent); }
.breadcrumbs .sep { opacity: 0.5; }

.post-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    display: block;
}

.post-title {
    font-size: 2.2rem;
    font-weight: 900;
    line-height: 1.15;
    color: var(--fg-body);
    margin-bottom: 16px;
}

.post-byline {
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--fg-muted);
    letter-spacing: 0.06em;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.post-byline span { display: flex; align-items: center; gap: 5px; }

/* Map grid decorative */
.map-grid-deco {
    margin-bottom: 24px;
    border-radius: var(--radius);
    overflow: hidden;
}

/* Hero image */
.post-hero-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 32px;
}

.post-hero-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius);
    margin-bottom: 32px;
    overflow: hidden;
}

/* Article body */
.article-body {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--fg-body);
    max-width: 65ch;
}

.article-body p { margin-bottom: 1.4em; }
.article-body h2 { font-size: 1.4rem; margin: 2em 0 0.7em; font-weight: 700; }
.article-body h3 { font-size: 1.15rem; margin: 1.6em 0 0.5em; font-weight: 700; }
.article-body ul, .article-body ol { padding-left: 1.5em; margin-bottom: 1.4em; }
.article-body li { margin-bottom: 0.4em; }
.article-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 1.6em 0;
    padding: 12px 20px;
    background: rgba(124,58,237,0.05);
    color: var(--fg-muted);
    font-style: italic;
}

.article-body code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(124,58,237,0.08);
    color: var(--accent);
    padding: 1px 5px;
    border-radius: 2px;
}

/* Data box */
.data-box {
    background: var(--bg-dark);
    color: var(--fg-dark);
    border-radius: var(--radius);
    padding: 20px;
    margin: 32px 0;
}

.data-box-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(167,139,250,0.2);
}

.data-box-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 6px 0;
    border-bottom: 1px solid rgba(167,139,250,0.1);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.data-box-row:last-child { border-bottom: none; }
.data-box-label { color: var(--accent-2); }
.data-box-val { color: #fff; font-weight: 600; }

/* Tags */
.post-tags {
    margin: 32px 0;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.post-tags-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
}

.post-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--accent);
    border: 1px solid rgba(124,58,237,0.3);
    background: rgba(124,58,237,0.06);
    padding: 3px 9px;
    border-radius: 2px;
    transition: background 0.2s, color 0.2s;
}

.post-tag:hover {
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-color: var(--accent);
}

/* Share */
.share-box {
    margin: 28px 0;
    padding: 20px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.share-box-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 12px;
}

.share-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.share-btn {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    padding: 7px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.share-btn:hover { opacity: 0.85; text-decoration: none; transform: translateY(-1px); }

.share-btn.vk      { background: #0077FF; color: #fff; }
.share-btn.tg      { background: #2CA5E0; color: #fff; }
.share-btn.tw      { background: #1DA1F2; color: #fff; }
.share-btn.copy-link { background: transparent; border-color: var(--border); color: var(--fg-body); }

/* Author Box */
.author-box {
    margin: 40px 0;
    background: var(--bg-dark);
    color: var(--fg-dark);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.author-avatar { flex-shrink: 0; }

.author-info { flex: 1; min-width: 0; }

.author-name {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--fg-dark);
    margin: 0 0 2px;
}

.author-title-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--accent-2);
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
}

.author-bio {
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.8);
    margin-bottom: 14px;
}

.author-stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.author-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: var(--font-mono);
}

.author-stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
}

.author-stat-label {
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    color: var(--accent-2);
    text-transform: uppercase;
}

/* Specialties */
.author-specialties {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 14px;
}

.specialty-tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    padding: 3px 8px;
    border-radius: 2px;
    background: rgba(167,139,250,0.15);
    color: var(--accent-2);
    border: 1px solid rgba(167,139,250,0.2);
}

/* Related Posts */
.related-posts {
    margin: 40px 0;
}

.related-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

/* ============================================================
   Category Page
   ============================================================ */
.category-header {
    background: var(--bg-dark);
    color: var(--fg-dark);
    padding: 40px var(--gutter);
    margin: 0 calc(-1 * var(--gutter));
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.category-icon { flex-shrink: 0; }

.category-name {
    font-size: 2rem;
    font-weight: 900;
    color: var(--fg-dark);
    margin: 0 0 6px;
}

.category-desc {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    margin: 0;
}

.atlas-card-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Category card list style (horizontal) */
.atlas-card-list .atlas-card {
    flex-direction: row;
    min-height: 0;
}

.atlas-card-list .card-image {
    width: 160px;
    flex-shrink: 0;
    aspect-ratio: unset;
    min-height: 120px;
}

/* Pagination */
.atlas-pagination {
    margin: 40px 0;
    display: flex;
    justify-content: center;
}

.atlas-pagination .page-numbers {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--fg-body);
    margin: 0 2px;
    transition: background 0.2s, color 0.2s;
}

.atlas-pagination .page-numbers:hover,
.atlas-pagination .page-numbers.current {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    text-decoration: none;
}

/* ============================================================
   Author Page
   ============================================================ */
.author-hero {
    background: var(--bg-dark);
    color: var(--fg-dark);
    padding: 48px var(--gutter);
    margin: 0 calc(-1 * var(--gutter)) 40px;
}

.author-hero-inner {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    max-width: 780px;
}

.author-hero .author-name { font-size: 1.8rem; }

.author-expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 20px 0;
}

.expertise-card {
    background: rgba(167,139,250,0.1);
    border: 1px solid rgba(167,139,250,0.2);
    border-radius: var(--radius);
    padding: 12px;
    text-align: center;
}

.expertise-icon {
    font-size: 1.2rem;
    display: block;
    margin-bottom: 4px;
}

.expertise-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    color: var(--accent-2);
    text-transform: uppercase;
    line-height: 1.3;
}

/* ============================================================
   Search Page
   ============================================================ */
.search-header {
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border);
}

.search-query-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 6px;
}

.search-query-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--fg-body);
    margin: 0;
}

.search-count {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--fg-muted);
    margin-top: 4px;
}

/* ============================================================
   404 Page
   ============================================================ */
.not-found-wrap {
    text-align: center;
    padding: 60px var(--gutter);
    max-width: 600px;
    margin: 0 auto;
}

.not-found-title {
    font-size: 4rem;
    font-weight: 900;
    color: var(--accent);
    margin: 16px 0 8px;
    line-height: 1;
}

.not-found-subtitle {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--fg-body);
    margin-bottom: 16px;
}

.not-found-fact {
    background: var(--bg-dark);
    color: var(--fg-dark);
    border-radius: var(--radius);
    padding: 20px;
    margin: 24px 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--accent-2);
    text-align: left;
}

.not-found-fact strong { color: var(--gold); }

.not-found-links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 24px;
}

.btn-primary {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 12px 28px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent-2); color: #fff; text-decoration: none; }

.btn-outline {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 12px 28px;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s, color 0.2s;
}

.btn-outline:hover { background: var(--accent); color: #fff; text-decoration: none; }

/* ============================================================
   Pages: About & Databook
   ============================================================ */
.page-hero {
    background: var(--bg-dark);
    color: var(--fg-dark);
    padding: 60px var(--gutter);
    margin: 0 calc(-1 * var(--gutter)) 40px;
    position: relative;
    overflow: hidden;
}

.page-hero-bg {
    position: absolute;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.07;
}

.page-hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-2);
    margin-bottom: 10px;
    display: block;
}

.page-hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--fg-dark);
    margin-bottom: 12px;
    max-width: 560px;
}

.page-hero-desc {
    font-size: 1rem;
    color: rgba(255,255,255,0.75);
    max-width: 480px;
    line-height: 1.6;
}

/* Topic cards */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.topic-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.topic-card:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 12px rgba(124,58,237,0.12);
}

.topic-card-icon {
    font-size: 1.4rem;
    margin-bottom: 8px;
    display: block;
}

.topic-card-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--fg-body);
    margin-bottom: 6px;
}

.topic-card-desc {
    font-size: 0.8rem;
    color: var(--fg-muted);
    line-height: 1.5;
}

/* Databook */
.databook-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.data-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 16px;
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.data-card:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 16px rgba(124,58,237,0.1);
}

.data-card-number {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 2px;
    font-variant-numeric: tabular-nums;
}

.data-card-unit {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--fg-muted);
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    display: block;
}

.data-card-label {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--fg-body);
    line-height: 1.3;
    margin-bottom: 4px;
}

.data-card-source {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    color: var(--fg-muted);
    letter-spacing: 0.05em;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    background: var(--bg-dark);
    color: var(--fg-dark);
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.footer-main {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 48px var(--gutter) 32px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
}

.footer-brand-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--fg-dark);
    margin: 0 0 8px;
}

.footer-brand-title span { color: var(--gold); }

.footer-mission {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    margin: 10px 0 16px;
}

.footer-social {
    display: flex;
    gap: 8px;
}

.social-link {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 12px;
    border: 1px solid rgba(167,139,250,0.3);
    border-radius: var(--radius);
    color: var(--accent-2);
    transition: background 0.2s, border-color 0.2s;
    text-decoration: none;
}

.social-link:hover {
    background: rgba(124,58,237,0.2);
    border-color: var(--accent-2);
    color: var(--fg-dark);
    text-decoration: none;
}

.footer-col-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-2);
    margin: 0 0 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(167,139,250,0.15);
}

.footer-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-nav li a {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    transition: color 0.2s;
}

.footer-nav li a:hover { color: var(--accent-2); text-decoration: none; }

.footer-subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.footer-subscribe-form input[type="email"] {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid rgba(167,139,250,0.25);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.06);
    color: var(--fg-dark);
    font-family: var(--font-body);
    font-size: 0.82rem;
    outline: none;
    transition: border-color 0.2s;
}

.footer-subscribe-form input[type="email"]:focus { border-color: var(--accent-2); }
.footer-subscribe-form input[type="email"]::placeholder { color: rgba(255,255,255,0.35); }

.footer-subscribe-form button {
    padding: 9px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
}

.footer-subscribe-form button:hover { background: var(--accent-2); }

.footer-bottom {
    border-top: 1px solid rgba(167,139,250,0.1);
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 16px var(--gutter);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 0.06em;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent-2); }

.noaa-data { color: var(--accent-2); }

/* ============================================================
   Utilities
   ============================================================ */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
    .content-sidebar-wrap {
        grid-template-columns: 1fr;
    }

    .widget-area { order: -1; }

    .atlas-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .databook-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .atlas-hero {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }

    .author-expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .topic-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .author-hero-inner {
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    :root { --gutter: 16px; }

    .header-nav #primary-menu { display: none; }
    .burger-btn { display: flex; }

    .atlas-card-grid {
        grid-template-columns: 1fr;
    }

    .atlas-card-list .atlas-card {
        flex-direction: column;
    }

    .atlas-card-list .card-image {
        width: 100%;
        min-height: 160px;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .databook-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        grid-template-columns: 1fr;
    }

    .post-title { font-size: 1.6rem; }
    .page-hero-title { font-size: 1.8rem; }

    .author-box {
        flex-direction: column;
    }

    .topic-grid {
        grid-template-columns: 1fr;
    }

    .author-expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .share-buttons { gap: 6px; }
    .share-btn { font-size: 0.65rem; padding: 6px 12px; }
}