/* ============================================================
   BiohackingFeed.com - Main Stylesheet
   Color scheme inspired by Claude's dark interface
   ============================================================ */

/* ---- CSS Variables (Claude Dark Theme) ---- */
:root {
    /* Background layers */
    --bg-primary: #2b2a27;
    --bg-secondary: #353430;
    --bg-tertiary: #3d3c37;
    --bg-card: #393832;
    --bg-hover: #45443d;
    --bg-code: #1e1e1c;
    --bg-input: #2b2a27;

    /* Text */
    --text-primary: #e8e4dc;
    --text-secondary: #b0aca2;
    --text-muted: #8a867d;
    --text-accent: #e2a85d;
    --text-link: #d49a54;
    --text-link-hover: #e8b06e;

    /* Accent colors */
    --accent-primary: #d49a54;
    --accent-secondary: #85CDCA;
    --accent-green: #7BC67E;
    --accent-red: #e88a8a;
    --accent-blue: #6B7FD7;
    --accent-purple: #D4A5E5;
    --accent-pink: #F7B7D2;
    --accent-orange: #E8A87C;

    /* Borders */
    --border-primary: #4a4940;
    --border-secondary: #3d3c37;
    --border-accent: #d49a5433;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 20px rgba(212,154,84,0.1);

    /* Typography */
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --container-max: 1280px;
    --container-narrow: 820px;
    --gap: 1.5rem;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;

    /* Transitions */
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
}

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--text-link-hover); }

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

/* ---- Typography ---- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.4rem; letter-spacing: -0.02em; }
h2 { font-size: 1.7rem; letter-spacing: -0.01em; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

.display-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

/* ---- Layout ---- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

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

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
}

/* ---- Header / Navigation ---- */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-orange));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--bg-primary);
    font-weight: 700;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-text span {
    color: var(--accent-primary);
}

/* Main nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.main-nav a {
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Categories dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-dropdown-trigger::after {
    content: '▾';
    font-size: 0.7rem;
    opacity: 0.6;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius);
    padding: 0.5rem;
    min-width: 560px;
    display: none;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown-menu:hover {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.25rem;
}

.nav-dropdown-menu a {
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.nav-dropdown-menu a:hover {
    background: var(--bg-hover);
}

.cat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Search in header */
.header-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    font-size: 1.1rem;
}

.search-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Mobile menu */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* ---- Search Overlay ---- */
.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
}

.search-overlay.active {
    display: flex;
}

.search-box {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.search-input-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-secondary);
}

.search-input-wrap svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.15rem;
    font-family: var(--font-body);
    outline: none;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
    margin-top: 0.75rem;
}

.search-result-item {
    display: block;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.search-result-item:hover {
    background: var(--bg-hover);
}

.search-result-item h4 {
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.search-result-item p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ---- Hero Section ---- */
.hero {
    padding: 4rem 0 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 140%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(212,154,84,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    position: relative;
}

.hero-title em {
    font-style: italic;
    color: var(--accent-primary);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

/* ---- Category Pills / Tags ---- */
.category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-secondary);
    transition: all var(--transition);
    cursor: pointer;
}

.pill:hover, .pill.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-primary);
}

.pill .cat-dot {
    width: 6px;
    height: 6px;
}

/* ---- Article Cards ---- */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
    margin-bottom: 3rem;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    border-color: var(--border-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

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

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.article-card:hover .article-card-image img {
    transform: scale(1.04);
}

.article-card-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--bg-primary);
}

.article-card-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
}

.article-card-meta .sep {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--text-muted);
}

.article-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    line-height: 1.35;
}

.article-card h3 a {
    color: var(--text-primary);
}

.article-card h3 a:hover {
    color: var(--accent-primary);
}

.article-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
    flex: 1;
}

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-secondary);
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Featured article (large card) */
.article-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
}

.article-featured .article-card-image {
    aspect-ratio: auto;
    min-height: 340px;
    border-radius: var(--radius) 0 0 var(--radius);
}

.article-featured .article-card-body {
    padding: 2rem;
    justify-content: center;
}

.article-featured h3 {
    font-size: 1.5rem;
}

.article-featured p {
    font-size: 0.95rem;
}

/* ---- Article Single Page ---- */
.article-header {
    padding: 3rem 0 2rem;
    text-align: center;
}

.article-header .pill {
    margin-bottom: 1rem;
}

.article-header h1 {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 400;
    max-width: 800px;
    margin: 0 auto 1rem;
}

.article-header .article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.article-hero-image {
    max-width: 1000px;
    margin: 0 auto 2.5rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 21/9;
}

.article-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.article-content p {
    margin-bottom: 1.4rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

.article-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-secondary);
}

.article-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.article-content ul, .article-content ol {
    margin-bottom: 1.4rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.article-content blockquote {
    border-left: 3px solid var(--accent-primary);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: var(--bg-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.article-content code {
    font-family: var(--font-mono);
    background: var(--bg-code);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.88rem;
}

.article-content pre {
    background: var(--bg-code);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1.5rem 0;
    overflow-x: auto;
}

.article-content pre code {
    background: none;
    padding: 0;
}

.article-content img {
    border-radius: var(--radius);
    margin: 1.5rem 0;
}

/* Medical disclaimer box */
.disclaimer-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-left: 3px solid var(--accent-orange);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    margin: 2rem 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.disclaimer-box strong {
    color: var(--accent-orange);
}

/* Affiliate product box */
.product-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1.5rem 0;
    display: flex;
    gap: 1.25rem;
    align-items: center;
}

.product-box img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: white;
    padding: 0.5rem;
}

.product-box-info h4 {
    margin-bottom: 0.25rem;
}

.product-box-info p {
    font-size: 0.85rem !important;
    margin-bottom: 0.5rem !important;
    color: var(--text-muted);
}

.product-box .btn-affiliate {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: all var(--transition);
}

.product-box .btn-affiliate:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.affiliate-disclosure {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ---- Sidebar ---- */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2.5rem;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.sidebar {
    position: sticky;
    top: 5rem;
    align-self: start;
}

.sidebar-widget {
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget h4 {
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-secondary);
}

/* Newsletter widget */
.newsletter-widget {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-tertiary));
    border-color: var(--accent-primary);
    border-width: 1px;
}

.newsletter-widget .newsletter-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.newsletter-widget p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.newsletter-form input[type="email"] {
    width: 100%;
    padding: 0.6rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.88rem;
    margin-bottom: 0.5rem;
    outline: none;
    transition: border-color var(--transition);
}

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

.newsletter-form button {
    width: 100%;
    padding: 0.6rem;
    background: var(--accent-primary);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.newsletter-form button:hover {
    filter: brightness(1.1);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* ---- Category Page ---- */
.category-header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border-secondary);
    margin-bottom: 2rem;
}

.category-header h1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.category-header p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    max-width: 600px;
}

.subcategory-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1rem;
}

/* ---- Pagination ---- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin: 2rem 0 3rem;
}

.pagination a, .pagination span {
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.pagination a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.pagination .current {
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 600;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.footer-col a {
    display: block;
    padding: 0.25rem 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.footer-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-secondary);
    padding-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-muted);
}

.footer-bottom a:hover {
    color: var(--text-secondary);
}

/* ---- AdSense Slots ---- */
.ad-slot {
    background: var(--bg-tertiary);
    border: 1px dashed var(--border-primary);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    text-align: center;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.ad-slot-header {
    min-height: 90px;
}

.ad-slot-sidebar {
    min-height: 250px;
}

.ad-slot-article {
    min-height: 250px;
    margin: 2rem -1.5rem;
}

/* ---- Static Pages ---- */
.static-page {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
}

.static-page h1 {
    font-family: var(--font-display);
    margin-bottom: 0.5rem;
}

.static-page .last-updated {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.static-page h2 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.static-page p, .static-page li {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Contact form */
.contact-form {
    max-width: 600px;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.92rem;
    outline: none;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ---- Toast / Flash Messages ---- */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius);
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    transform: translateY(120%);
    transition: transform 0.3s ease;
    font-size: 0.9rem;
}

.toast.show {
    transform: translateY(0);
}

.toast-success { border-left: 3px solid var(--accent-green); }
.toast-error { border-left: 3px solid var(--accent-red); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .content-with-sidebar { grid-template-columns: 1fr; }
    .nav-dropdown-menu { min-width: 400px; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .articles-grid { grid-template-columns: 1fr; }
    .article-featured { grid-template-columns: 1fr; }
    .article-featured .article-card-image { min-height: 200px; border-radius: var(--radius) var(--radius) 0 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .hero-title, .display-title { font-size: 2.2rem; }
    .article-header h1 { font-size: 2rem; }
    h1 { font-size: 1.8rem; }
    
    .main-nav { display: none; }
    .main-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-primary);
        padding: 1rem;
    }
    .mobile-toggle { display: block; }
    .nav-dropdown-menu { position: static; transform: none; min-width: auto; grid-template-columns: 1fr !important; }
    
    .category-pills { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 0.5rem; }
    .content-with-sidebar { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .product-box { flex-direction: column; text-align: center; }
    .ad-slot-article { margin: 1.5rem 0; }
}

@media (max-width: 480px) {
    .hero-title, .display-title { font-size: 1.8rem; }
    .container, .container-narrow { padding: 0 1rem; }
    .header-inner { padding: 0.75rem 1rem; }
}

/* ---- Print ---- */
@media print {
    .site-header, .site-footer, .sidebar, .ad-slot, .search-overlay, .newsletter-widget { display: none !important; }
    body { background: white; color: black; }
    .article-content { max-width: 100%; }
}