/* ===== GridOasis Guides — Stylesheet ===== */

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

:root {
    --cyan: #00f0ff;
    --cyan-dim: #00f0ff88;
    --cyan-glow: 0 0 20px #00f0ff44, 0 0 40px #00f0ff22;
    --green: #39ff14;
    --bg-deep: #040810;
    --bg-card: #0a1020;
    --bg-card-hover: #0d1530;
    --border: #1a2a4a;
    --border-glow: #00f0ff33;
    --text: #c8d6e5;
    --text-dim: #6b7c93;
    --text-bright: #e8f0fe;
    --font-display: 'Orbitron', sans-serif;
    --font-heading: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-decoration: none; transition: color 0.3s; }
a:hover { color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== NAV ===== */
.guide-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 0 24px;
    background: rgba(4,8,16,0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo img { height: 26px; filter: brightness(1.1); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: color 0.3s;
}
.nav-links a:hover { color: var(--cyan); }
.nav-links a.active { color: var(--cyan); }

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--cyan);
    color: var(--cyan) !important;
    font-family: var(--font-heading) !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    letter-spacing: 1.5px !important;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 0.3s;
}
.nav-cta:hover {
    background: var(--cyan);
    color: var(--bg-deep) !important;
    box-shadow: var(--cyan-glow);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--cyan);
    margin: 5px 0;
    transition: all 0.3s;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
    padding: 24px 0 0;
    font-size: 13px;
    color: var(--text-dim);
    font-family: var(--font-body);
}
.breadcrumbs a { color: var(--text-dim); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs .sep { margin: 0 8px; color: var(--border); }
.breadcrumbs .current { color: var(--text); }

/* ===== GUIDE LAYOUT (article pages) ===== */
.guide-main {
    padding-top: 64px;
    min-height: 100vh;
}

.guide-layout {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.guide-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 48px;
    margin-top: 32px;
    align-items: start;
}

/* ===== TABLE OF CONTENTS (sidebar) ===== */
.toc-sidebar {
    position: relative;
}

.toc-sticky {
    position: sticky;
    top: 88px;
}

.toc-sticky h4 {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 16px;
}

.toc-list {
    list-style: none;
    border-left: 1px solid var(--border);
    padding-left: 0;
}

.toc-list li {
    margin-bottom: 0;
}

.toc-list a {
    display: block;
    padding: 6px 0 6px 16px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-dim);
    border-left: 2px solid transparent;
    margin-left: -1px;
    transition: color 0.2s, border-color 0.2s;
}
.toc-list a:hover {
    color: var(--text-bright);
    border-left-color: var(--cyan-dim);
}
.toc-list a.active {
    color: var(--cyan);
    border-left-color: var(--cyan);
}

.toc-list .toc-h3 {
    padding-left: 28px;
    font-size: 12px;
}

/* ===== PILLAR NAV (in sidebar) ===== */
.pillar-nav {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.pillar-nav > h4 {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 16px;
}
.pillar-nav > h4 a { color: var(--text-dim); }
.pillar-nav > h4 a:hover { color: var(--cyan); }

.toc-list .toc-cluster {
    font-size: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    opacity: 0.5;
    padding: 10px 0 2px 16px;
    border-left: 1px solid var(--border);
    margin-left: 0;
}
.toc-list .toc-cluster:first-child {
    padding-top: 0;
}

/* ===== BREADCRUMB HOME ICON ===== */
.breadcrumb-home {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
}
.breadcrumb-home svg { vertical-align: middle; }

/* Mobile TOC toggle */
.toc-mobile-toggle {
    display: none;
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    margin-bottom: 24px;
}
.toc-mobile-toggle::after {
    content: '\25BC';
    float: right;
    font-size: 10px;
    color: var(--text-dim);
    transition: transform 0.2s;
}
.toc-mobile-toggle.open::after {
    transform: rotate(180deg);
}

/* ===== ARTICLE CONTENT ===== */
.article-content {
    max-width: 720px;
    font-size: 17px;
    line-height: 1.85;
    color: var(--text);
}

.article-content h1 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 8px;
}

.byline {
    font-family: var(--font-heading);
    font-size: 14px;
    color: var(--text-dim);
    margin-bottom: 32px;
}
.byline a {
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}
.byline a:hover { color: var(--cyan); }

.article-content h2 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin: 48px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-bright);
    margin: 36px 0 12px;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul, .article-content ol {
    margin: 16px 0 24px 24px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content blockquote {
    border-left: 3px solid var(--cyan);
    margin: 24px 0;
    padding: 16px 24px;
    background: rgba(0,240,255,0.03);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-bright);
}

.article-content strong { color: var(--text-bright); }

.article-content a {
    color: var(--cyan);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.article-content a:hover { border-bottom-color: var(--cyan); color: var(--cyan); }

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
}
.article-content th {
    text-align: left;
    padding: 10px 14px;
    background: var(--bg-card);
    color: var(--text-bright);
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    font-family: var(--font-heading);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.article-content td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}
.article-content tr:hover td {
    background: rgba(0,240,255,0.02);
}

.article-content code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 14px;
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--cyan);
}

.article-content pre {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 20px;
    overflow-x: auto;
    margin: 24px 0;
}
.article-content pre code {
    background: none;
    padding: 0;
    color: var(--text-bright);
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 40px 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid var(--border);
    margin: 24px 0;
}

/* ===== ARTICLE NAV (prev/next) ===== */
.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-nav a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    transition: border-color 0.3s, background 0.3s;
    text-decoration: none;
    max-width: 48%;
}
.article-nav a:hover {
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
}
.article-nav .nav-arrow {
    font-size: 15px;
    color: var(--cyan);
    flex-shrink: 0;
}
.article-nav .nav-title {
    font-size: 12px;
    line-height: 1.4;
    color: var(--text-dim);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-nav a:hover .nav-title { color: var(--text-bright); }

/* ===== GUIDE CTA BANNER ===== */
.guide-cta {
    margin-top: 64px;
    margin-bottom: 80px;
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: center;
}
.guide-cta p {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 20px;
}
.guide-cta .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--cyan), #00c8d4);
    color: var(--bg-deep);
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: none;
    border-radius: 4px;
    transition: all 0.3s;
}
.guide-cta .btn-primary:hover {
    color: var(--bg-deep);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,240,255,0.3);
}

/* ===== GUIDES INDEX PAGE ===== */
.guides-hero {
    padding: 48px 0 40px;
    text-align: center;
}
.guides-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(26px, 4vw, 40px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}
.guides-hero p {
    font-size: 17px;
    color: var(--text);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.75;
}

.pillar-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-bottom: 80px;
}

.pillar-card {
    display: block;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: border-color 0.3s, background 0.3s, transform 0.3s;
}
.pillar-card:hover {
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    color: inherit;
}

.pillar-card h2 {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.pillar-card p {
    font-size: 14px;
    color: var(--text);
    line-height: 1.65;
    margin-bottom: 12px;
}

.pillar-card .article-count {
    font-size: 12px;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--cyan);
    font-weight: 600;
}

/* ===== PILLAR PAGE ===== */
.pillar-header {
    padding: 48px 0 32px;
}
.pillar-header h1 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}
.pillar-header .pillar-desc {
    font-size: 17px;
    color: var(--text);
    max-width: 680px;
    line-height: 1.75;
}

.pillar-content {
    max-width: 760px;
    margin-top: 56px;
    padding-top: 40px;
    padding-bottom: 48px;
    border-top: 1px solid var(--border);
}
.pillar-content h2 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin: 40px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.pillar-content h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-bright);
    margin: 32px 0 12px;
}
.pillar-content p {
    font-size: 17px;
    line-height: 1.85;
    margin-bottom: 20px;
}
.pillar-content strong { color: var(--text-bright); }
.pillar-content blockquote {
    border-left: 3px solid var(--cyan);
    margin: 24px 0;
    padding: 16px 24px;
    background: rgba(0,240,255,0.03);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-bright);
}
.pillar-content ul, .pillar-content ol {
    margin: 16px 0 24px 24px;
}
.pillar-content li {
    margin-bottom: 8px;
    font-size: 17px;
    line-height: 1.85;
}

.cluster-section {
    margin-top: 48px;
}
.cluster-section h2 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--cyan);
    margin-bottom: 16px;
    padding-bottom: 0;
    border-bottom: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.article-list {
    list-style: none;
    padding: 0;
}
.article-list li {
    margin-bottom: 0;
}
.article-list a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-bright);
    transition: background 0.2s, padding-left 0.2s;
    font-size: 15px;
}
.article-list a:hover {
    background: rgba(0,240,255,0.03);
    padding-left: 20px;
    color: #fff;
}
.article-list .num {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dim);
    min-width: 28px;
}

/* ===== FOOTER ===== */
.guide-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand img { height: 26px; margin-bottom: 12px; filter: brightness(1.1); }
.footer-brand p { font-size: 13px; color: var(--text-dim); line-height: 1.7; max-width: 300px; }

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 14px; color: var(--text-dim); }
.footer-col a:hover { color: var(--cyan); }

.disclaimer {
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.7;
    padding: 20px 0;
    border-top: 1px solid var(--border);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    font-size: 12px;
    color: var(--text-dim);
}
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--cyan); }

/* ===== COOKIE BAR ===== */
.cookie-bar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 200;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 16px 24px;
    transform: translateY(100%);
    transition: transform 0.4s;
}
.cookie-bar.visible { transform: translateY(0); }

.cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.cookie-inner p { font-size: 13px; color: var(--text-dim); flex: 1; }

.cookie-buttons { display: flex; gap: 12px; flex-shrink: 0; }

.cookie-btn {
    padding: 8px 20px;
    font-size: 13px;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.cookie-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.cookie-btn-accept {
    background: var(--cyan);
    color: var(--bg-deep);
    border-color: var(--cyan);
}
.cookie-btn-accept:hover {
    background: #fff;
    color: var(--bg-deep);
    border-color: #fff;
}

/* ===== 404 PAGE ===== */
.page-404 {
    text-align: center;
    padding: 120px 24px;
}
.page-404 h1 {
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 800;
    color: var(--cyan);
    margin-bottom: 16px;
}
.page-404 p {
    font-size: 18px;
    color: var(--text);
    margin-bottom: 32px;
}
.page-404 a {
    display: inline-flex;
    padding: 12px 28px;
    background: transparent;
    border: 1px solid var(--cyan);
    color: var(--cyan);
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 0.3s;
}
.page-404 a:hover {
    background: var(--cyan);
    color: var(--bg-deep);
}

/* ===== AUTHOR BOX (article + pillar pages) ===== */
.author-box {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-top: 48px;
    padding: 28px 28px 28px 32px;
    background: linear-gradient(135deg, rgba(10,16,32,0.95), rgba(6,12,24,0.95));
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.3s;
}
.author-box:hover {
    border-color: var(--border-glow);
}
.author-box-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--cyan), #0080ff);
    border-radius: 3px 0 0 3px;
}
.author-avatar-link {
    flex-shrink: 0;
    display: block;
    position: relative;
}
.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.author-avatar-link:hover .author-avatar {
    border-color: var(--cyan-dim);
    box-shadow: 0 0 16px rgba(0,240,255,0.15);
}
.author-info { flex: 1; min-width: 0; }
.author-label {
    font-family: var(--font-heading);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-dim);
    margin-bottom: 3px;
}
.author-name {
    font-family: var(--font-heading);
    font-size: 19px;
    font-weight: 700;
    color: var(--text-bright);
    display: block;
    line-height: 1.3;
    transition: color 0.2s;
}
.author-name:hover { color: var(--cyan); }
.author-bio {
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.65;
    margin-top: 6px;
}
.author-profile-link {
    display: inline-block;
    margin-top: 10px;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--cyan);
    opacity: 0.8;
    transition: opacity 0.2s;
}
.author-profile-link:hover { opacity: 1; color: var(--cyan); }

/* ===== AUTHOR PROFILE PAGE ===== */
.author-profile {
    max-width: 820px;
    margin: 0 auto;
    padding: 32px 0 80px;
}

/* Hero card */
.author-hero {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 40px;
}
.author-hero-glow {
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cyan), #0080ff, var(--cyan));
}
.author-hero-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 40px 40px 28px;
}
.author-hero-avatar-wrap {
    flex-shrink: 0;
    position: relative;
    width: 140px;
    height: 140px;
}
.author-hero-avatar-wrap::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cyan), #0060cc, var(--cyan));
    opacity: 0.35;
}
.author-hero-avatar {
    position: relative;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-card);
}
.author-hero-meta h1 {
    font-family: var(--font-heading);
    font-size: 34px;
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 6px;
}
.author-hero-role {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 500;
    color: var(--cyan);
    margin-bottom: 16px;
}
.author-hero-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.author-credential {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim);
    padding: 5px 12px;
    background: rgba(0,240,255,0.04);
    border: 1px solid rgba(26,42,74,0.6);
    border-radius: 20px;
}
.author-credential svg {
    color: var(--cyan);
    opacity: 0.6;
    flex-shrink: 0;
}

/* Stats bar */
.author-stats {
    display: flex;
    border-top: 1px solid var(--border);
}
.author-stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px;
    border-right: 1px solid var(--border);
}
.author-stat:last-child { border-right: none; }
.author-stat-num {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--cyan);
    line-height: 1;
    margin-bottom: 4px;
}
.author-stat-label {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
}
.author-stat-social {
    justify-content: center;
}
.author-social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color 0.2s;
}
.author-social-link:hover { color: var(--cyan); }
.author-social-link svg { flex-shrink: 0; }

/* Bio section */
.author-bio-section {
    margin-bottom: 48px;
}
.author-bio-section h2 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.author-bio-section p {
    font-size: 16px;
    line-height: 1.85;
    color: var(--text);
    margin-bottom: 16px;
}
.author-bio-section p:last-child { margin-bottom: 0; }

/* Guide listing */
.author-guides-section h2 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 24px;
}

.author-pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color 0.3s;
}
.author-pillar-card:hover {
    border-color: var(--border-glow);
}
.author-pillar-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,240,255,0.02);
}
.author-pillar-card-header h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-bright);
    margin: 0;
}
.author-pillar-card-header h3 a { color: var(--text-bright); }
.author-pillar-card-header h3 a:hover { color: var(--cyan); }
.author-guide-count {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--cyan);
    background: rgba(0,240,255,0.08);
    padding: 4px 10px;
    border-radius: 12px;
    flex-shrink: 0;
}
.author-guide-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.author-guide-list li {
    border-bottom: 1px solid rgba(26,42,74,0.35);
}
.author-guide-list li:last-child { border-bottom: none; }
.author-guide-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.author-guide-list li a:hover {
    background: rgba(0,240,255,0.03);
    color: var(--text-bright);
}
.author-guide-title {
    flex: 1;
    min-width: 0;
}
.author-guide-arrow {
    color: var(--text-dim);
    font-size: 13px;
    margin-left: 12px;
    flex-shrink: 0;
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.2s, transform 0.2s;
}
.author-guide-list li a:hover .author-guide-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .guide-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .toc-sidebar { display: none; }
    .toc-mobile-toggle { display: block; }
    .toc-mobile {
        display: none;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 16px;
        margin-bottom: 24px;
    }
    .toc-mobile.open { display: block; }
}

@media (max-width: 768px) {
    .pillar-grid {
        grid-template-columns: 1fr;
    }
    .article-nav { gap: 10px; }
    .article-nav a { padding: 8px 12px; max-width: 50%; }
    .article-nav .nav-title { font-size: 11px; }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .cookie-inner {
        flex-direction: column;
        text-align: center;
    }
    .guide-cta { padding: 28px 20px; }
    .article-content { font-size: 16px; }
    .article-content h2 { font-size: 22px; }
    .author-hero-inner { flex-direction: column; text-align: center; gap: 20px; padding: 32px 24px 24px; }
    .author-hero-avatar-wrap { width: 110px; height: 110px; }
    .author-hero-avatar { width: 110px; height: 110px; }
    .author-hero-meta h1 { font-size: 26px; }
    .author-hero-credentials { justify-content: center; }
    .author-stat-num { font-size: 20px; }
    .author-stat-label { font-size: 10px; }
    .author-pillar-card-header { padding: 14px 18px; }
    .author-guide-list li a { padding: 10px 18px; font-size: 13px; }
    .author-box { padding: 20px 20px 20px 24px; gap: 14px; }
    .author-avatar { width: 52px; height: 52px; }
    .author-name { font-size: 17px; }
}

@media (max-width: 640px) {
    .mobile-toggle { display: block; }
    .nav-links {
        display: none;
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: rgba(4,8,16,0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}