/* ===================================================================
   Functional Medicine Coach - Stylesheet
   Color Palette: Muted Teal, Deep Navy, Warm Sand, Soft Sage
   =================================================================== */

/* --- CSS Variables --- */
:root {
    --color-navy: #1a2332;
    --color-navy-light: #243447;
    --color-teal: #4a9b8e;
    --color-teal-dark: #3a7d72;
    --color-teal-light: #e8f4f2;
    --color-sand: #f5f0e8;
    --color-sand-dark: #e8dfd4;
    --color-sage: #7fb09a;
    --color-sage-light: #a8d4c2;
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f4f4f5;
    --color-gray-200: #e4e4e7;
    --color-gray-300: #d4d4d8;
    --color-gray-400: #a1a1aa;
    --color-gray-500: #71717a;
    --color-gray-600: #52525b;
    --color-gray-700: #3f3f46;
    --color-gray-800: #27272a;
    --color-gray-900: #18181b;
    --color-accent: #c9956b;
    --color-accent-light: #f0dcc8;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Merriweather', Georgia, serif;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    --container-max: 1320px;
    --container-narrow: 760px;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    color: var(--color-teal-dark);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-teal);
}

/* --- Layout --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 24px;
}

.main-content {
    min-height: 60vh;
}

/* --- Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    border-bottom-color: var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-navy);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-navy);
}

.logo-icon {
    font-size: 1.4rem;
    color: var(--color-teal);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    font-size: 0.92rem;
    color: var(--color-gray-600);
    text-decoration: none;
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-teal);
    border-radius: 2px;
    transition: width var(--transition);
}

.nav-link:hover {
    color: var(--color-navy);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-search-btn {
    background: none;
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    cursor: pointer;
    color: var(--color-gray-500);
    transition: all var(--transition);
    display: flex;
    align-items: center;
}

.nav-search-btn:hover {
    border-color: var(--color-teal);
    color: var(--color-teal);
    background: var(--color-teal-light);
}

.nav-mobile-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-700);
    padding: 4px;
}

.mobile-menu {
    display: none;
    padding: 16px 24px 24px;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-link {
    display: block;
    padding: 12px 0;
    font-weight: 500;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

/* --- Search Overlay --- */
.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(26, 35, 50, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 24px 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-overlay-content {
    width: 100%;
    max-width: 680px;
    transform: translateY(-20px);
    transition: transform var(--transition);
}

.search-overlay.active .search-overlay-content {
    transform: translateY(0);
}

.search-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.search-close:hover {
    background: rgba(255,255,255,0.2);
}

.search-input-wrapper {
    position: relative;
    margin-bottom: 24px;
}

.search-input-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
}

.search-input {
    width: 100%;
    padding: 20px 24px 20px 56px;
    font-size: 1.2rem;
    font-family: var(--font-sans);
    background: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    outline: none;
    color: var(--color-gray-800);
}

.search-input::placeholder {
    color: var(--color-gray-400);
}

.search-results {
    max-height: 60vh;
    overflow-y: auto;
    border-radius: var(--radius-md);
}

.search-results-list {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.search-result-item {
    display: flex;
    gap: 16px;
    padding: 16px 20px;
    text-decoration: none;
    color: var(--color-gray-800);
    border-bottom: 1px solid var(--color-gray-100);
    transition: background var(--transition);
}

.search-result-item:hover {
    background: var(--color-teal-light);
}

.search-result-image {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

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

.search-result-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-navy);
    line-height: 1.3;
}

.search-result-excerpt {
    font-size: 0.82rem;
    color: var(--color-gray-500);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-loading,
.search-empty {
    text-align: center;
    padding: 32px;
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(165deg, var(--color-navy) 0%, var(--color-navy-light) 50%, var(--color-teal-dark) 100%);
    padding: 140px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(74, 155, 142, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 40%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(201, 149, 107, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-highlight {
    color: var(--color-sage-light);
    font-style: italic;
    font-family: var(--font-serif);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-search-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.1);
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition);
    backdrop-filter: blur(4px);
}

.hero-search-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.4);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

/* --- Topics Bar --- */
.topics-bar {
    padding: 32px 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-100);
    position: sticky;
    top: 65px;
    z-index: 100;
}

.topic-chips {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.topic-chips::-webkit-scrollbar {
    display: none;
}

.topic-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-gray-600);
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--transition);
}

.topic-chip:hover {
    background: var(--color-teal-light);
    border-color: var(--color-teal);
    color: var(--color-teal-dark);
}

.chip-count {
    background: var(--color-gray-200);
    padding: 1px 7px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-gray-500);
}

.topic-chip:hover .chip-count {
    background: var(--color-teal);
    color: white;
}

.topic-chip-more {
    background: var(--color-teal-light);
    border-color: var(--color-teal);
    color: var(--color-teal-dark);
    font-weight: 600;
}

/* --- Article Grid --- */
.articles-section {
    padding: 60px 0 80px;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
}

.related-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* --- Article Card --- */
.article-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.article-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gray-200);
}

.article-card-featured {
    grid-column: 1 / -1;
}

.article-card-featured .card-image {
    padding-top: 45%;
}

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

.card-image-link {
    display: block;
    text-decoration: none;
}

.card-image {
    position: relative;
    padding-top: 60%;
    background-size: cover;
    background-position: center;
    background-color: var(--color-sand);
    transition: transform var(--transition-slow);
}

.article-card:hover .card-image {
    transform: scale(1.03);
}

.card-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(26, 35, 50, 0.08) 100%);
}

.card-content {
    padding: 24px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 10px;
    color: var(--color-navy);
}

.card-title a {
    color: inherit;
    text-decoration: none;
}

.card-title a:hover {
    color: var(--color-teal-dark);
}

.card-excerpt {
    font-size: 0.88rem;
    color: var(--color-gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.card-tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 10px;
    background: var(--color-teal-light);
    color: var(--color-teal-dark);
    border-radius: 50px;
    text-decoration: none;
    transition: all var(--transition);
}

.card-tag:hover {
    background: var(--color-teal);
    color: white;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--color-gray-100);
}

.pagination-btn {
    padding: 10px 20px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-teal-dark);
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all var(--transition);
}

.pagination-btn:hover {
    background: var(--color-teal-light);
    border-color: var(--color-teal);
}

.pagination-numbers {
    display: flex;
    gap: 4px;
}

.pagination-num {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-gray-600);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all var(--transition);
}

.pagination-num:hover {
    background: var(--color-gray-100);
}

.pagination-num.active {
    background: var(--color-teal);
    color: white;
    font-weight: 600;
}

.pagination-ellipsis {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
}

/* --- Article Page --- */
.article-hero {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: flex-end;
    background-size: cover;
    background-position: center;
    background-color: var(--color-navy);
    margin-top: 65px;
}

.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(26, 35, 50, 0.2) 0%, rgba(26, 35, 50, 0.85) 100%);
}

.article-hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 60px 24px 48px;
    width: 100%;
}

.article-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.article-keyword-tag {
    font-size: 0.78rem;
    font-weight: 500;
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    text-decoration: none;
    backdrop-filter: blur(4px);
    transition: all var(--transition);
}

.article-keyword-tag:hover {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

.article-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.article-body {
    padding: 48px 0 60px;
}

/* --- Prose / Article Content --- */
.prose {
    font-family: var(--font-serif);
    font-size: 1.08rem;
    line-height: 1.85;
    color: var(--color-gray-700);
}

.prose p {
    margin-bottom: 1.6em;
}

.prose h2 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-top: 2em;
    margin-bottom: 0.8em;
    line-height: 1.3;
}

.prose h3 {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-navy-light);
    margin-top: 1.5em;
    margin-bottom: 0.6em;
}

.prose ul, .prose ol {
    margin-bottom: 1.6em;
    padding-left: 1.5em;
}

.prose li {
    margin-bottom: 0.5em;
}

.prose strong {
    color: var(--color-gray-800);
    font-weight: 600;
}

.prose a {
    color: var(--color-teal-dark);
    text-decoration: underline;
    text-decoration-color: var(--color-teal-light);
    text-underline-offset: 3px;
    transition: all var(--transition);
}

.prose a:hover {
    color: var(--color-teal);
    text-decoration-color: var(--color-teal);
}

/* --- Disclaimer Box --- */
.disclaimer-box {
    display: flex;
    gap: 14px;
    padding: 20px 24px;
    background: var(--color-sand);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-accent);
    margin-bottom: 36px;
    align-items: flex-start;
}

.disclaimer-box svg {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.disclaimer-box p {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin: 0;
}

.disclaimer-bottom {
    margin-top: 48px;
    margin-bottom: 0;
}

/* --- Article Tags --- */
.article-tags-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--color-gray-200);
}

.tags-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 14px;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article-tag {
    padding: 8px 16px;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: all var(--transition);
}

.article-tag:hover {
    background: var(--color-teal-light);
    border-color: var(--color-teal);
    color: var(--color-teal-dark);
}

/* --- Related Section --- */
.related-section {
    padding: 60px 0 80px;
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 32px;
    text-align: center;
}

/* --- Topic Pages --- */
.topic-hero {
    padding: 120px 24px 40px;
    background: var(--color-sand);
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 0.85rem;
    color: var(--color-gray-400);
}

.breadcrumb a {
    color: var(--color-gray-500);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--color-teal);
}

.topic-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 8px;
}

.topic-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.topic-count {
    font-size: 1rem;
    color: var(--color-gray-500);
}

/* --- Topics Grid Page (Redesigned) --- */

.topics-hero {
    padding: 120px 24px 48px;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.topics-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(74, 155, 142, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(74, 155, 142, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.topics-hero-title {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
    position: relative;
}

.topics-hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-300);
    max-width: 560px;
    margin: 0 auto 32px;
    position: relative;
}

.topics-search-wrapper {
    position: relative;
    max-width: 480px;
    margin: 0 auto;
}

.topics-search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
    pointer-events: none;
}

.topics-search-input {
    width: 100%;
    padding: 16px 120px 16px 50px;
    font-size: 1rem;
    font-family: var(--font-sans);
    background: var(--color-white);
    border: 2px solid transparent;
    border-radius: 60px;
    outline: none;
    transition: all var(--transition);
    box-shadow: var(--shadow-lg);
}

.topics-search-input:focus {
    border-color: var(--color-teal);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(74, 155, 142, 0.15);
}

.topics-search-input::placeholder {
    color: var(--color-gray-400);
}

.topics-search-count {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--color-gray-400);
    background: var(--color-gray-100);
    padding: 4px 12px;
    border-radius: 50px;
    font-weight: 500;
}

.topics-page-section {
    padding: 48px 0 80px;
    background: var(--color-gray-50);
}

/* Stats Bar */
.topics-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 48px;
    padding: 24px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
}

.topics-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.topics-stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-teal);
}

.topics-stat-label {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Category Sections */
.topics-category {
    margin-bottom: 40px;
}

.topics-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-gray-200);
}

.topics-category-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-navy);
    display: flex;
    align-items: center;
    gap: 10px;
}

.topics-category-icon {
    font-size: 1.4rem;
}

.topics-category-count {
    font-size: 0.8rem;
    color: var(--color-gray-400);
    font-weight: 500;
}

.topics-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

/* Topic Card V2 */
.topic-card-v2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition);
}

.topic-card-v2:hover {
    border-color: var(--color-teal);
    background: var(--color-teal-light);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.topic-card-v2-content {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.topic-card-v2-name {
    font-weight: 600;
    color: var(--color-navy);
    font-size: 0.93rem;
    line-height: 1.3;
}

.topic-card-v2-count {
    font-size: 0.78rem;
    color: var(--color-gray-400);
    font-weight: 400;
}

.topic-card-v2-arrow {
    color: var(--color-gray-300);
    transition: all var(--transition);
    flex-shrink: 0;
}

.topic-card-v2:hover .topic-card-v2-arrow {
    color: var(--color-teal);
    transform: translateX(3px);
}

.topic-card-v2:hover .topic-card-v2-name {
    color: var(--color-teal-dark);
}

/* No Results */
.topics-no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 80px 24px;
    text-align: center;
    color: var(--color-gray-400);
}

.topics-no-results p {
    font-size: 1.1rem;
    color: var(--color-gray-500);
}

.topics-clear-btn {
    padding: 10px 24px;
    background: var(--color-teal);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.topics-clear-btn:hover {
    background: var(--color-teal-dark);
    transform: translateY(-1px);
}

/* Legacy topic-card support (for other pages if needed) */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.topic-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition);
}

.topic-card:hover {
    border-color: var(--color-teal);
    background: var(--color-teal-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.topic-card-name {
    font-weight: 600;
    color: var(--color-navy);
    font-size: 0.95rem;
}

.topic-card-count {
    font-size: 0.8rem;
    color: var(--color-gray-400);
    background: var(--color-gray-100);
    padding: 3px 10px;
    border-radius: 50px;
}

.topic-card:hover .topic-card-count {
    background: var(--color-teal);
    color: white;
}

/* --- Search Form Page --- */
.search-form {
    margin-top: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-form-wrapper {
    display: flex;
    gap: 12px;
}

.search-form-input {
    flex: 1;
    padding: 14px 20px;
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition);
}

.search-form-input:focus {
    border-color: var(--color-teal);
}

.search-form-btn {
    padding: 14px 28px;
    background: var(--color-teal);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background var(--transition);
}

.search-form-btn:hover {
    background: var(--color-teal-dark);
}

.search-results-count {
    font-size: 0.95rem;
    color: var(--color-gray-500);
    margin-bottom: 28px;
}

.no-results {
    text-align: center;
    padding: 60px 24px;
    color: var(--color-gray-500);
}

.no-results a {
    color: var(--color-teal);
    font-weight: 500;
}

/* --- About Page --- */
.about-page {
    padding: 120px 24px 80px;
}

.about-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 36px;
    text-align: center;
}

.about-lead {
    font-size: 1.2rem;
    color: var(--color-gray-600);
    text-align: center;
    margin-bottom: 48px !important;
    font-style: italic;
}

.about-content h2 {
    margin-top: 2.5em;
}

.about-disclaimer {
    margin-top: 16px;
}

/* --- 404 Page --- */
.not-found {
    text-align: center;
    padding: 120px 24px 80px;
}

.not-found h1 {
    font-size: 2rem;
    color: var(--color-navy);
    margin-bottom: 12px;
}

.not-found p {
    color: var(--color-gray-500);
    margin-bottom: 24px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background: var(--color-teal);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition);
}

.btn-primary:hover {
    background: var(--color-teal-dark);
    color: white;
}

/* --- Footer --- */
.site-footer {
    background: var(--color-navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-title {
    font-size: 1.2rem;
    color: white;
    margin-bottom: 16px;
    font-weight: 700;
}

.footer-title .logo-icon {
    color: var(--color-sage-light);
}

.footer-description {
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
}

.footer-subtitle {
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-sage-light);
}

.footer-bottom {
    padding: 32px 0;
    text-align: center;
}

.footer-disclaimer {
    font-size: 0.8rem;
    max-width: 700px;
    margin: 0 auto 16px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.45);
}

.footer-copyright {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .article-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-mobile-btn {
        display: block;
    }
    
    .hero {
        padding: 120px 20px 60px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .article-card-featured .card-image {
        padding-top: 56%;
    }
    
    .article-card-featured .card-title {
        font-size: 1.2rem;
    }
    
    .article-hero {
        min-height: 320px;
    }
    
    .article-title {
        font-size: 1.6rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    
    .topics-bar {
        top: 57px;
    }
    
    .topic-hero {
        padding: 100px 20px 32px;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-hero {
        padding: 100px 20px 36px;
    }
    
    .topics-hero-title {
        font-size: 2rem;
    }
    
    .topics-search-input {
        padding: 14px 100px 14px 44px;
        font-size: 0.9rem;
    }
    
    .topics-stats {
        gap: 24px;
        padding: 20px 16px;
    }
    
    .topics-stat-number {
        font-size: 1.4rem;
    }
    
    .topics-category-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .search-overlay {
        padding: 60px 16px 16px;
    }
}

@media (max-width: 480px) {
    .card-content {
        padding: 18px;
    }
    
    .card-title {
        font-size: 1rem;
    }
    
    .prose {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    transition: opacity 0.4s ease, transform 0.4s ease, box-shadow var(--transition);
}