/* ===== ToolStackAI — Global Stylesheet ===== */

/* ---------- CSS Custom Properties ---------- */
:root {
    --primary: #4F46E5;
    --primary-light: #818CF8;
    --primary-dark: #3730A3;
    --accent: #06B6D4;
    --accent-light: #67E8F9;
    --gradient: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    --gradient-subtle: linear-gradient(135deg, #EEF2FF 0%, #ECFEFF 100%);
    --bg: #FAFBFF;
    --bg-card: #FFFFFF;
    --bg-dark: #0F172A;
    --bg-dark-card: #1E293B;
    --text: #1E293B;
    --text-light: #64748B;
    --text-lighter: #94A3B8;
    --text-white: #F8FAFC;
    --border: #E2E8F0;
    --border-light: #F1F5F9;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
    --shadow: 0 4px 6px rgba(15,23,42,0.05), 0 2px 4px rgba(15,23,42,0.03);
    --shadow-md: 0 10px 25px rgba(15,23,42,0.08), 0 4px 10px rgba(15,23,42,0.04);
    --shadow-lg: 0 20px 40px rgba(15,23,42,0.1), 0 8px 16px rgba(15,23,42,0.06);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --max-width: 1200px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--text); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); letter-spacing: -0.01em; }
p { margin-bottom: 1rem; }
ul, ol { padding-left: 1.5rem; }

/* ---------- Utility ---------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-dark h2, .section-dark h3 { color: var(--text-white); }
.section-dark p { color: var(--text-lighter); }
.section-gradient { background: var(--gradient-subtle); }
.badge { display: inline-block; padding: 0.3rem 0.8rem; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; border-radius: 100px; }
.badge-primary { background: #EEF2FF; color: var(--primary); }
.badge-accent { background: #ECFEFF; color: #0891B2; }
.badge-success { background: #ECFDF5; color: #059669; }
.badge-warning { background: #FFFBEB; color: #D97706; }
.text-center { text-align: center; }
.text-gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-label { display: inline-block; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--primary); margin-bottom: 0.75rem; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.75rem; font-size: 0.95rem; font-weight: 600; border-radius: var(--radius-sm); border: none; cursor: pointer; transition: all var(--transition); text-decoration: none; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 14px rgba(79,70,229,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79,70,229,0.45); color: #fff; }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white { background: #fff; color: var(--primary); font-weight: 600; }
.btn-white:hover { background: #F8FAFC; transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--primary); }
.btn-sm { padding: 0.55rem 1.2rem; font-size: 0.85rem; }
.btn-lg { padding: 1rem 2.25rem; font-size: 1.05rem; }
.btn-icon { font-size: 1.1rem; }

/* ---------- Announcement Bar ---------- */
.announcement {
    background: var(--gradient);
    color: #fff;
    text-align: center;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
}
.announcement a { color: #fff; text-decoration: underline; font-weight: 700; }

/* ---------- Header ---------- */
header {
    background: rgba(250,251,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.03em;
}
.logo span { color: var(--primary); }
.logo em { font-style: normal; color: var(--accent); font-weight: 800; }
nav { display: flex; align-items: center; gap: 2rem; }
nav a { color: var(--text-light); font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
nav a:hover, nav a.active { color: var(--primary); }
.nav-cta { background: var(--gradient); color: #fff !important; padding: 0.5rem 1.2rem; border-radius: var(--radius-sm); font-weight: 600 !important; }
.nav-cta:hover { opacity: 0.9; color: #fff !important; }
.hamburger { display: none; font-size: 1.5rem; cursor: pointer; color: var(--text); }

/* ---------- Hero ---------- */
.hero {
    padding: 6rem 1.5rem 5rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}
.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #EEF2FF;
    color: var(--primary);
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(79,70,229,0.15);
}
.hero h1 { margin-bottom: 1.25rem; }
.hero p { font-size: 1.15rem; color: var(--text-light); max-width: 650px; margin: 0 auto 2rem; line-height: 1.8; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat .number { font-size: 1.75rem; font-weight: 800; color: var(--primary); display: block; }
.hero-stat .label { font-size: 0.8rem; color: var(--text-light); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- Tool Cards ---------- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.tool-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.tool-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1rem; }
.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.tool-icon.purple { background: #EEF2FF; }
.tool-icon.blue { background: #EFF6FF; }
.tool-icon.green { background: #ECFDF5; }
.tool-icon.orange { background: #FFF7ED; }
.tool-icon.pink { background: #FDF2F8; }
.tool-icon.cyan { background: #ECFEFF; }
.tool-pricing { text-align: right; }
.tool-pricing .price { font-size: 1.1rem; font-weight: 700; color: var(--text); }
.tool-pricing .period { font-size: 0.75rem; color: var(--text-light); }
.tool-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.tool-card p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 1rem; line-height: 1.65; }
.tool-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem; }
.tool-tag { font-size: 0.72rem; padding: 0.2rem 0.6rem; background: var(--border-light); color: var(--text-light); border-radius: 100px; font-weight: 500; }
.tool-card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 1rem; border-top: 1px solid var(--border-light); }
.tool-rating { display: flex; align-items: center; gap: 0.35rem; font-size: 0.85rem; font-weight: 600; color: var(--warning); }
.tool-rating span { color: var(--text-light); font-weight: 400; }

/* ---------- Category Cards ---------- */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 2.5rem;
}
.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
}
.category-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}
.category-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.category-card h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.category-card p { font-size: 0.8rem; color: var(--text-light); margin-bottom: 0; }

/* ---------- Article Cards ---------- */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}
.article-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.article-thumb {
    height: 200px;
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
}
.article-thumb .overlay-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
}
.article-body { padding: 1.5rem; }
.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}
.article-body h3 { margin-bottom: 0.5rem; }
.article-body h3 a { color: var(--text); }
.article-body h3 a:hover { color: var(--primary); }
.article-body > p { font-size: 0.9rem; color: var(--text-light); }
.read-more { font-size: 0.9rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 0.3rem; }

/* ---------- Newsletter ---------- */
.newsletter {
    background: var(--gradient);
    border-radius: var(--radius-xl);
    padding: 4rem 3rem;
    text-align: center;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}
.newsletter::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
}
.newsletter h2 { color: #fff; margin-bottom: 0.75rem; position: relative; }
.newsletter p { color: rgba(255,255,255,0.85); margin-bottom: 2rem; font-size: 1.05rem; position: relative; }
.newsletter-form {
    display: flex;
    max-width: 480px;
    margin: 0 auto;
    gap: 0.75rem;
    position: relative;
}
.newsletter-form input {
    flex: 1;
    padding: 0.9rem 1.25rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.15);
    color: #fff;
    font-size: 0.95rem;
    font-family: var(--font-body);
    outline: none;
    transition: border-color var(--transition);
}
.newsletter-form input::placeholder { color: rgba(255,255,255,0.6); }
.newsletter-form input:focus { border-color: rgba(255,255,255,0.7); }

/* ---------- Ad Placements ---------- */
.ad-zone {
    background: var(--border-light);
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    padding: 2rem;
    text-align: center;
    color: var(--text-lighter);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.ad-banner { margin: 2.5rem 0; padding: 3rem 2rem; }
.ad-sidebar { padding: 1.5rem; margin-bottom: 1.5rem; }

/* ---------- Comparison Table ---------- */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 2rem 0;
    font-size: 0.9rem;
}
.comparison-table thead { background: var(--bg-dark); }
.comparison-table th {
    padding: 1rem;
    text-align: left;
    color: #fff;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}
.comparison-table tbody tr:hover { background: #F8FAFC; }
.comparison-table tbody tr:last-child td { border-bottom: none; }
.check { color: var(--success); font-weight: 700; }
.cross { color: var(--danger); font-weight: 700; }

/* ---------- Product Review Cards ---------- */
.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin: 2rem 0;
    transition: box-shadow var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-md); }
.review-card-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient);
    color: #fff;
    border-radius: 50%;
    font-weight: 800;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.review-card h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
.review-card .subtitle { color: var(--text-light); font-size: 0.95rem; margin-bottom: 1.25rem; }
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 1.5rem 0; }
.pros h4 { color: var(--success); font-size: 0.9rem; margin-bottom: 0.5rem; }
.cons h4 { color: var(--danger); font-size: 0.9rem; margin-bottom: 0.5rem; }
.pros li, .cons li { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0.35rem; list-style: none; padding-left: 1.2rem; position: relative; }
.pros li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; }
.cons li::before { content: '✗'; position: absolute; left: 0; color: var(--danger); font-weight: 700; }
.review-card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 1.25rem; border-top: 1px solid var(--border-light); margin-top: 1rem; }
.review-score {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}
.review-score span { font-size: 0.85rem; color: var(--text-light); font-weight: 400; }

/* ---------- FAQ ---------- */
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    margin-bottom: 0.75rem;
}
.faq-item h3 { font-size: 1rem; color: var(--text); margin-bottom: 0.5rem; }
.faq-item p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }

/* ---------- Table of Contents ---------- */
.toc {
    background: var(--gradient-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    margin: 2rem 0;
}
.toc h3 { font-size: 1rem; margin-bottom: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
.toc ol { counter-reset: toc; list-style: none; padding: 0; }
.toc li { counter-increment: toc; padding: 0.35rem 0; font-size: 0.9rem; }
.toc li::before { content: counter(toc) '.'; color: var(--primary); font-weight: 700; margin-right: 0.5rem; }
.toc a { color: var(--text); font-weight: 500; }
.toc a:hover { color: var(--primary); }

/* ---------- Expert Tip ---------- */
.expert-tip {
    background: #EEF2FF;
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 1.25rem 1.5rem;
    margin: 1.5rem 0;
}
.expert-tip .tip-label { font-size: 0.75rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.35rem; }
.expert-tip p { font-size: 0.9rem; color: var(--text); margin-bottom: 0; }

/* ---------- Author Bio ---------- */
.author-bio {
    display: flex;
    gap: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 2.5rem 0;
}
.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
}
.author-info h4 { font-size: 1rem; margin-bottom: 0.15rem; }
.author-info .role { font-size: 0.8rem; color: var(--primary); font-weight: 600; margin-bottom: 0.35rem; }
.author-info p { font-size: 0.85rem; color: var(--text-light); margin-bottom: 0; }

/* ---------- About Page ---------- */
.about-hero { padding: 5rem 1.5rem 3rem; text-align: center; max-width: 750px; margin: 0 auto; }
.about-hero p { font-size: 1.1rem; color: var(--text-light); }
.values-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.value-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; text-align: center; }
.value-card .icon { font-size: 2.5rem; margin-bottom: 1rem; }
.value-card h3 { margin-bottom: 0.5rem; }
.value-card p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.team-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; text-align: center; }
.team-card .avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--gradient); margin: 0 auto 1rem; display: flex; align-items: center; justify-content: center; font-size: 2rem; }
.team-card h3 { margin-bottom: 0.15rem; font-size: 1.1rem; }
.team-card .title { color: var(--primary); font-size: 0.85rem; font-weight: 600; margin-bottom: 0.75rem; }
.team-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0; }

/* ---------- Stats Bar ---------- */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 3rem 0;
}
.stat-item { text-align: center; }
.stat-item .stat-number { font-size: 2rem; font-weight: 800; color: var(--primary); display: block; }
.stat-item .stat-label { font-size: 0.8rem; color: var(--text-light); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- Article Page Layout ---------- */
.article-page { max-width: 820px; margin: 0 auto; padding: 3rem 1.5rem 5rem; }
.article-page h1 { margin-bottom: 1rem; }
.article-page .article-meta-top {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-light);
    flex-wrap: wrap;
}
.article-page .content h2 { margin-top: 2.5rem; margin-bottom: 1rem; }
.article-page .content h3 { margin-top: 2rem; margin-bottom: 0.75rem; }
.article-page .content p { font-size: 1.02rem; line-height: 1.8; color: var(--text); }
.article-page .content ul, .article-page .content ol { margin: 1rem 0; }
.article-page .content li { font-size: 0.95rem; margin-bottom: 0.5rem; line-height: 1.7; }

/* ---------- Legal Page ---------- */
.legal-page { max-width: 780px; margin: 0 auto; padding: 3rem 1.5rem 5rem; }
.legal-page h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.legal-page .updated { font-size: 0.85rem; color: var(--text-light); margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.legal-page h2 { font-size: 1.35rem; margin-top: 2.5rem; margin-bottom: 0.75rem; }
.legal-page p, .legal-page li { font-size: 0.95rem; color: var(--text-light); line-height: 1.8; }

/* ---------- Footer ---------- */
footer {
    background: var(--bg-dark);
    color: var(--text-lighter);
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.footer-brand .logo { font-size: 1.3rem; margin-bottom: 0.75rem; color: #fff; display: inline-block; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem; }
.footer-col a { display: block; color: var(--text-lighter); font-size: 0.88rem; padding: 0.25rem 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom {
    max-width: var(--max-width);
    margin: 3rem auto 0;
    padding: 1.5rem 1.5rem 0;
    border-top: 1px solid var(--bg-dark-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-bottom a { color: var(--text-lighter); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .hamburger { display: block; }
    nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 1.5rem; border-bottom: 1px solid var(--border); gap: 1rem; box-shadow: var(--shadow-md); }
    nav.open { display: flex; }
    .hero { padding: 3rem 1.5rem; }
    .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
    .tools-grid, .articles-grid { grid-template-columns: 1fr; }
    .categories-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .newsletter { padding: 2.5rem 1.5rem; }
    .newsletter-form { flex-direction: column; }
    .pros-cons { grid-template-columns: 1fr; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .comparison-table { font-size: 0.8rem; }
    .comparison-table th, .comparison-table td { padding: 0.7rem 0.5rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
    .categories-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-btns { flex-direction: column; align-items: center; }
}