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

:root {
    --teal: #0d9488;
    --teal-light: #ecfdf5;
    --teal-dark: #0a7a70;
    --amber: #f59e0b;
    --amber-light: #fef9ec;
    --warm-white: #fafaf8;
    --warm-50: #f7f6f3;
    --warm-100: #f0eeeb;
    --warm-200: #e2dfda;
    --warm-300: #c8c4bc;
    --warm-400: #a09a90;
    --warm-500: #78716c;
    --warm-600: #57534e;
    --warm-700: #44403c;
    --warm-800: #292524;
    --warm-900: #1c1917;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,.07);
    --transition: 180ms ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--warm-800);
    background: var(--warm-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

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

/* ── Navbar ──────────────────────────────────────────── */
.navbar {
    background: #fff;
    border-bottom: 1px solid var(--warm-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--warm-900);
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.3px;
}
.logo:hover { color: var(--warm-900); }
.logo-icon {
    background: var(--teal);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2px;
    align-items: center;
}

.nav-links a {
    color: var(--warm-600);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active {
    color: var(--teal);
    background: var(--teal-light);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--warm-700);
    border-radius: 2px;
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
    padding: 80px 0 64px;
    text-align: center;
}
.hero-label {
    display: inline-block;
    background: var(--teal-light);
    color: var(--teal);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}
.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--warm-900);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.hero p {
    font-size: 1.12rem;
    color: var(--warm-500);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.75;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-teal {
    background: var(--teal);
    color: #fff;
}
.btn-teal:hover { background: var(--teal-dark); color: #fff; }
.btn-outline {
    background: transparent;
    color: var(--teal);
    border: 1.5px solid var(--warm-300);
}
.btn-outline:hover { border-color: var(--teal); background: var(--teal-light); }
.btn-bol {
    background: var(--teal);
    color: #fff;
    padding: 10px 22px;
    font-size: 0.88rem;
}
.btn-bol:hover { background: var(--teal-dark); color: #fff; }

/* ── Section Basics ──────────────────────────────────── */
.section { padding: 56px 0; }
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 36px;
    flex-wrap: wrap;
    gap: 12px;
}
.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--warm-900);
    letter-spacing: -0.3px;
}
.section-subtitle {
    color: var(--warm-500);
    font-size: 0.95rem;
    margin-top: 4px;
}

/* ── Featured Article (large card) ──────────────────── */
.featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    margin-bottom: 32px;
}
.featured-card:hover {
    box-shadow: var(--shadow-md);
}
.featured-card-img {
    background: linear-gradient(135deg, var(--teal-light) 0%, var(--warm-100) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    min-height: 280px;
    overflow: hidden;
}
.featured-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.featured-card:hover .featured-card-img img {
    transform: scale(1.03);
}
.featured-card-body {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.featured-card-body .tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--teal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}
.featured-card-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--warm-900);
    line-height: 1.3;
    margin-bottom: 12px;
}
.featured-card-body p {
    color: var(--warm-500);
    line-height: 1.7;
    margin-bottom: 20px;
}
.featured-card-body .read-more {
    font-weight: 600;
    color: var(--teal);
    font-size: 0.9rem;
}

/* ── Article Cards ───────────────────────────────────── */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.article-card {
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}
.article-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.article-card-img {
    height: 180px;
    background: linear-gradient(135deg, var(--teal-light) 0%, var(--warm-100) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    overflow: hidden;
}
.article-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.article-card:hover .article-card-img img {
    transform: scale(1.05);
}
.article-card-body {
    padding: 20px 22px 24px;
}
.article-card-tag {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--teal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    display: inline-block;
}
.article-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--warm-900);
    margin-bottom: 8px;
    line-height: 1.4;
}
.article-card p {
    font-size: 0.87rem;
    color: var(--warm-500);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Topic Cards (categories) ────────────────────────── */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.topic-card {
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 24px 16px;
    text-align: center;
    transition: all var(--transition);
}
.topic-card:hover {
    border-color: var(--teal);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}
.topic-icon {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}
.topic-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--warm-800);
    margin-bottom: 4px;
}
.topic-card p {
    font-size: 0.78rem;
    color: var(--warm-400);
}

/* ── Intro Block (homepage) ──────────────────────────── */
.intro-block {
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}
.intro-block h2 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--warm-900);
}
.intro-block p {
    color: var(--warm-500);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ── Author Byline ──────────────────────────────────── */
.author-byline {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
}
.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--teal);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.author-info {
    font-size: 0.85rem;
    line-height: 1.4;
}
.author-name {
    font-weight: 600;
    color: var(--warm-800);
}
.author-date {
    color: var(--warm-400);
}

/* ── Article Content ─────────────────────────────────── */
.article-hero {
    background: var(--warm-50);
    border-bottom: 1px solid var(--warm-200);
    padding: 56px 0;
}
.article-hero-image {
    width: 100%;
    max-height: 360px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-top: 28px;
}
.article-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--warm-900);
    line-height: 1.2;
    max-width: 700px;
    letter-spacing: -0.3px;
}
.article-hero .article-meta {
    margin-top: 16px;
    color: var(--warm-500);
    font-size: 0.88rem;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.article-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 24px 64px;
}
.article-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--warm-900);
    margin: 44px 0 16px;
    padding-top: 12px;
    border-top: 1px solid var(--warm-200);
    letter-spacing: -0.2px;
}
.article-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}
.article-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--warm-800);
    margin: 28px 0 12px;
}
.article-content p {
    margin-bottom: 18px;
    color: var(--warm-700);
    line-height: 1.85;
    font-size: 1.01rem;
}
.article-content ul, .article-content ol {
    margin: 0 0 18px 24px;
    color: var(--warm-700);
    line-height: 1.85;
}
.article-content li { margin-bottom: 8px; }
.article-content a { text-decoration: underline; text-underline-offset: 2px; }

.article-tip {
    background: var(--teal-light);
    border-left: 4px solid var(--teal);
    padding: 18px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 28px 0;
    font-size: 0.93rem;
    line-height: 1.75;
}
.article-tip strong { color: var(--teal-dark); }

.article-pullquote {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--teal-dark);
    border-left: 3px solid var(--teal);
    padding: 8px 0 8px 24px;
    margin: 36px 0;
    line-height: 1.5;
    font-style: italic;
}

.product-pick {
    background: #fff;
    border: 1.5px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 24px;
    margin: 28px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    transition: all var(--transition);
}
.product-pick:hover {
    border-color: var(--teal);
    box-shadow: var(--shadow);
}
.product-pick-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--warm-900);
    margin-bottom: 4px;
}
.product-pick-info p {
    font-size: 0.85rem;
    color: var(--warm-500);
    margin: 0;
    line-height: 1.6;
}

/* ── Newsletter Block ───────────────────────────────── */
.newsletter-block {
    background: var(--warm-50);
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 36px;
    text-align: center;
    margin: 48px 0 0;
}
.newsletter-block h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--warm-900);
    margin-bottom: 8px;
}
.newsletter-block p {
    color: var(--warm-500);
    font-size: 0.92rem;
    margin-bottom: 20px;
    line-height: 1.6;
}
.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 400px;
    margin: 0 auto;
}
.newsletter-form input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--warm-300);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}
.newsletter-form input:focus {
    border-color: var(--teal);
}
.newsletter-form button {
    padding: 10px 20px;
    background: var(--teal);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    font-family: inherit;
    transition: background var(--transition);
}
.newsletter-form button:hover { background: var(--teal-dark); }

/* ── Table of Contents ──────────────────────────────── */
.toc {
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 36px;
}
.toc h4 {
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--warm-400);
    margin-bottom: 12px;
}
.toc ol {
    margin: 0;
    padding-left: 20px;
    color: var(--warm-600);
    font-size: 0.92rem;
    line-height: 1.9;
}
.toc a {
    text-decoration: none;
    color: var(--warm-600);
}
.toc a:hover { color: var(--teal); }

/* ── About Page ──────────────────────────────────────── */
.about-hero {
    background: var(--warm-50);
    border-bottom: 1px solid var(--warm-200);
    padding: 64px 0;
    text-align: center;
}
.about-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--warm-900);
}
.about-hero p {
    color: var(--warm-500);
    margin-top: 12px;
    font-size: 1.05rem;
}

.about-content {
    max-width: 680px;
    margin: 0 auto;
    padding: 48px 24px 64px;
}
.about-content h2 {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 36px 0 12px;
    color: var(--warm-900);
}
.about-content p {
    margin-bottom: 18px;
    color: var(--warm-700);
    line-height: 1.85;
}

/* ── Page Header ─────────────────────────────────────── */
.page-header {
    background: var(--warm-50);
    border-bottom: 1px solid var(--warm-200);
    padding: 40px 0;
}
.page-header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--warm-900);
    letter-spacing: -0.3px;
}
.page-header p {
    color: var(--warm-500);
    margin-top: 6px;
}
.breadcrumb {
    font-size: 0.82rem;
    color: var(--warm-400);
    margin-bottom: 8px;
}
.breadcrumb a { color: var(--warm-400); }
.breadcrumb a:hover { color: var(--teal); }

/* ── Disclaimer ──────────────────────────────────────── */
.disclaimer {
    background: var(--warm-50);
    border: 1px solid var(--warm-200);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    font-size: 0.8rem;
    color: var(--warm-500);
    line-height: 1.7;
    margin-top: 40px;
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
    background: var(--warm-900);
    color: var(--warm-400);
    padding: 56px 0 0;
    margin-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
}
.footer h4 {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.footer p {
    font-size: 0.85rem;
    line-height: 1.7;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul a {
    color: var(--warm-400);
    font-size: 0.85rem;
    transition: color var(--transition);
}
.footer ul a:hover { color: #fff; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    margin-top: 40px;
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    font-size: 0.78rem;
    color: var(--warm-500);
    line-height: 1.7;
}

/* ── Compare Cards ──────────────────────────────────── */
.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}
.compare-card {
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    gap: 20px;
    transition: all var(--transition);
    align-items: flex-start;
}
.compare-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--teal);
}
.compare-card-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--warm-50);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
.compare-card-body h3 {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--warm-900);
    margin: 4px 0 12px;
    line-height: 1.3;
}
.compare-card-result {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.compare-winner {
    background: var(--teal-light);
    color: var(--teal-dark);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
}
.compare-price {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--teal);
}
.compare-date {
    font-size: 0.75rem;
    color: var(--warm-400);
    margin-top: 8px;
}

/* ── Compare Table ──────────────────────────────────── */
.compare-table-wrap {
    overflow-x: auto;
    background: #fff;
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    margin-top: 8px;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}
.compare-table th {
    background: var(--warm-50);
    color: var(--warm-500);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--warm-200);
}
.compare-table td {
    padding: 16px 20px;
    font-size: 0.92rem;
    border-bottom: 1px solid var(--warm-100);
    color: var(--warm-700);
    vertical-align: middle;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-best td {
    background: var(--teal-light);
}
.compare-badge {
    display: inline-block;
    background: var(--teal);
    color: #fff;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 8px;
    vertical-align: middle;
}
.compare-price-cell {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--warm-900);
    white-space: nowrap;
}
.compare-note {
    font-size: 0.84rem;
    color: var(--warm-500);
}
.compare-verdict {
    background: var(--warm-50);
    border: 1px solid var(--warm-200);
    border-radius: var(--radius);
    padding: 28px;
    margin-top: 32px;
}
.compare-verdict h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--warm-900);
    margin-bottom: 10px;
}
.compare-verdict p {
    color: var(--warm-700);
    line-height: 1.8;
    font-size: 0.95rem;
    margin: 0;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--warm-200);
        box-shadow: var(--shadow-md);
    }
    .nav-inner.open .nav-links { display: flex; }

    .hero { padding: 48px 0 40px; }
    .hero h1 { font-size: 1.9rem; }
    .hero p { font-size: 1rem; }

    .section { padding: 40px 0; }
    .section-title { font-size: 1.3rem; }

    .featured-card { grid-template-columns: 1fr; }
    .featured-card-img { min-height: 200px; }
    .featured-card-body { padding: 28px; }
    .featured-card-body h2 { font-size: 1.25rem; }

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

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    .article-hero h1 { font-size: 1.6rem; }
    .article-content { padding: 32px 20px 48px; }

    .product-pick { flex-direction: column; align-items: flex-start; }

    .intro-block { padding: 28px; }
}