:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-alt: #162033;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #334155;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #eab308;
    --radius: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navbar */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--bg) 0%, #1a1a4e 100%);
}
.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 16px; }
.hero-sub { font-size: 1.2rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* Sections */
.section { padding: 60px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { font-size: 1.8rem; margin-bottom: 32px; }
.section-desc { color: var(--text-muted); margin-bottom: 24px; font-size: 1.1rem; }

/* Category Grid */
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.2s, border-color 0.2s;
}
.category-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.category-card h3 { color: var(--text); margin-bottom: 8px; }
.category-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 12px; }
.tool-count { color: var(--primary); font-size: 0.85rem; font-weight: 600; }

/* Tool Grid */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.2s;
}
.tool-card:hover { transform: translateY(-2px); }
.tool-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.tool-header h2, .tool-header h3 { font-size: 1.2rem; }
.tool-header h2 a, .tool-header h3 a { color: var(--text); }
.tool-tagline { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 12px; }
.tool-meta { display: flex; gap: 12px; margin-bottom: 12px; }
.tool-pricing { color: var(--text-muted); margin-bottom: 12px; }
.tool-categories { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tool-actions { display: flex; gap: 8px; }
.tool-features-mini { list-style: none; margin-bottom: 16px; }
.tool-features-mini li { padding: 4px 0; font-size: 0.9rem; color: var(--text-muted); }
.tool-features-mini li::before { content: "- "; color: var(--primary); }

/* Rating */
.rating { background: var(--primary); color: white; padding: 4px 10px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; white-space: nowrap; }
.rating-large { font-size: 2.5rem; font-weight: 800; color: var(--primary); }
.rating-large span { font-size: 1rem; color: var(--text-muted); }
.rating-badge { display: inline-block; background: var(--primary); color: white; padding: 4px 12px; border-radius: 20px; font-weight: 600; margin-bottom: 12px; }

/* Tags */
.tag {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
}
.pricing { background: rgba(34, 197, 94, 0.15); color: var(--green); padding: 4px 10px; border-radius: 6px; font-size: 0.8rem; }
.price { color: var(--text-muted); font-size: 0.85rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); color: white; }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* Breadcrumb */
.breadcrumb { margin-bottom: 24px; color: var(--text-muted); font-size: 0.9rem; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }

/* Tool Detail */
.tool-detail-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.tool-detail-tagline { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 32px; }
.tool-detail-grid { display: grid; grid-template-columns: 1fr 350px; gap: 40px; margin-bottom: 48px; }
.tool-detail-main h2 { font-size: 1.4rem; margin: 32px 0 16px; }
.feature-list { list-style: none; }
.feature-list li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.feature-list li::before { content: "-> "; color: var(--primary); font-weight: 600; }

/* Pros & Cons */
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 24px 0; }
.pros h3, .pros h4 { color: var(--green); margin-bottom: 12px; }
.cons h3, .cons h4 { color: var(--red); margin-bottom: 12px; }
.pros ul, .cons ul { list-style: none; }
.pros li, .cons li { padding: 6px 0; font-size: 0.95rem; }
.pros li::before { content: "+ "; color: var(--green); font-weight: 700; }
.cons li::before { content: "- "; color: var(--red); font-weight: 700; }

/* Sidebar */
.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: sticky;
    top: 80px;
}
.sidebar-card h3 { margin-bottom: 16px; }
.sidebar-card dl { margin-bottom: 20px; }
.sidebar-card dt { color: var(--text-muted); font-size: 0.85rem; margin-top: 12px; }
.sidebar-card dd { font-weight: 600; }
.sidebar-card .btn { width: 100%; text-align: center; }

/* Comparison */
.comparison-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.comparison-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.2s;
}
.comparison-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.comparison-card h3 { color: var(--text); margin-bottom: 8px; }
.comparison-card p { color: var(--text-muted); font-size: 0.9rem; }

.comparison-table-wrap { overflow-x: auto; margin: 32px 0; }
.comparison-table { width: 100%; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--border); }
.comparison-table th { color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; }
.comparison-table tr:hover { background: rgba(99, 102, 241, 0.05); }

.comparison-detail {
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}
.comparison-detail h2 { margin-bottom: 8px; }
.comparison-detail h3 { font-size: 1.1rem; margin: 20px 0 12px; }

.pricing-detail { font-size: 1.1rem; font-weight: 600; color: var(--primary); }

.conclusion {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-top: 40px;
}

/* Footer */
.footer { background: var(--bg-card); border-top: 1px solid var(--border); padding: 60px 0 30px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h3 { color: var(--primary); margin-bottom: 12px; }
.footer h4 { margin-bottom: 12px; }
.footer p { color: var(--text-muted); font-size: 0.9rem; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 6px; }
.footer li a { color: var(--text-muted); font-size: 0.85rem; }
.footer li a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; text-align: center; }
.footer-bottom p { font-size: 0.8rem; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .tool-detail-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .pros-cons { grid-template-columns: 1fr; }
}