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

:root {
  --bg: #f7f9fb;
  --fg: #1a1d23;
  --card: #ffffff;
  --card-fg: #1a1d23;
  --primary: #2563eb;
  --primary-fg: #ffffff;
  --secondary: #eef2f7;
  --secondary-fg: #2a3040;
  --muted: #e8ecf1;
  --muted-fg: #6b7280;
  --border: #dde3ea;
  --accent: #f59e0b;
  --success: #16a34a;
  --destructive: #ef4444;
  --radius: 0.75rem;
  --shadow: 0 4px 24px -4px rgba(26,29,35,0.08);
  --shadow-hover: 0 8px 32px -4px rgba(26,29,35,0.15);
  --hero-gradient: linear-gradient(135deg, #2563eb, #3730a3);
}

body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--fg); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.25rem; color: var(--primary); }
.logo svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 1.5rem; }
.nav a { font-size: 0.875rem; font-weight: 500; color: var(--muted-fg); transition: color 0.2s; }
.nav a:hover { color: var(--fg); }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; font-size: 1.5rem; }

/* Hero */
.hero { background: var(--hero-gradient); padding: 5rem 0; text-align: center; color: var(--primary-fg); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; max-width: 800px; margin: 0 auto 1.5rem; line-height: 1.1; }
.hero p { font-size: 1.125rem; opacity: 0.85; max-width: 600px; margin: 0 auto 2rem; }
.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.5rem; border-radius: var(--radius); font-weight: 600; font-size: 0.875rem; border: none; cursor: pointer; transition: all 0.2s; }
.btn-secondary { background: var(--secondary); color: var(--secondary-fg); }
.btn-secondary:hover { background: var(--muted); }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { opacity: 0.9; }

/* Trust */
.trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; padding: 3rem 0; }
.trust-card { display: flex; gap: 1rem; padding: 1.5rem; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); }
.trust-card .icon { width: 32px; height: 32px; color: var(--primary); flex-shrink: 0; }
.trust-card h3 { font-weight: 600; margin-bottom: 0.25rem; }
.trust-card p { font-size: 0.875rem; color: var(--muted-fg); }

/* Cards grid */
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.section-header h2 { font-size: 1.5rem; font-weight: 700; }
.section-header a { font-size: 0.875rem; color: var(--primary); font-weight: 500; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; padding-bottom: 3rem; }
.card { border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); overflow: hidden; box-shadow: var(--shadow); transition: all 0.3s; }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.card-img { aspect-ratio: 3/2; overflow: hidden; background: var(--muted); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.card:hover .card-img img { transform: scale(1.05); }
.card-body { padding: 1.25rem; }
.card-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 500; background: var(--secondary); color: var(--secondary-fg); }
.price { font-size: 0.875rem; font-weight: 600; color: var(--primary); }
.card-body h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.25rem; }
.card-body .desc { font-size: 0.875rem; color: var(--muted-fg); margin-top: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Stars */
.stars { display: flex; align-items: center; gap: 2px; }
.stars .star { color: var(--accent); font-size: 0.875rem; }
.stars .star.empty { color: var(--muted); }
.stars .rating-num { margin-left: 0.25rem; font-size: 0.875rem; font-weight: 500; }

/* Filter */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.filter-btn { padding: 0.5rem 1rem; border-radius: 9999px; border: none; font-size: 0.875rem; font-weight: 500; cursor: pointer; background: var(--secondary); color: var(--secondary-fg); transition: all 0.2s; }
.filter-btn.active, .filter-btn:hover { background: var(--primary); color: var(--primary-fg); }

/* Review detail */
.review-detail { max-width: 900px; margin: 0 auto; padding: 2rem 1.5rem; }
.review-detail .back { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.875rem; color: var(--muted-fg); margin-bottom: 1.5rem; }
.review-detail .back:hover { color: var(--fg); }
.review-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); margin-bottom: 2rem; aspect-ratio: 16/9; background: var(--muted); }
.review-img img { width: 100%; height: 100%; object-fit: cover; }
.review-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin-bottom: 1rem; }
.badge-outline { border: 1px solid var(--border); background: transparent; }
.review-detail h1 { font-size: 2rem; font-weight: 700; margin-bottom: 0.75rem; }
.review-text { margin-top: 2rem; }
.review-text h2 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }
.review-text p { color: var(--muted-fg); line-height: 1.8; }

.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2rem; }
.pros-cons .box { padding: 1.25rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); }
.pros-cons h3 { font-weight: 600; margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.5rem; }
.pros-cons .pro-title { color: var(--success); }
.pros-cons .con-title { color: var(--destructive); }
.pros-cons li { font-size: 0.875rem; color: var(--muted-fg); padding: 0.25rem 0; display: flex; align-items: flex-start; gap: 0.5rem; }

.specs { margin-top: 2rem; padding: 1.25rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); }
.specs h3 { font-weight: 600; margin-bottom: 1rem; }
.specs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.spec-row { display: flex; justify-content: space-between; padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.spec-row:last-child { border-bottom: none; }
.spec-row .label { font-size: 0.875rem; font-weight: 500; }
.spec-row .value { font-size: 0.875rem; color: var(--muted-fg); }

/* Page content */
.page { max-width: 750px; margin: 0 auto; padding: 3rem 1.5rem; }
.page h1 { font-size: 2rem; font-weight: 700; margin-bottom: 0.5rem; }
.page .subtitle { font-size: 0.875rem; color: var(--muted-fg); margin-bottom: 2rem; }
.page h2 { font-size: 1.125rem; font-weight: 600; color: var(--fg); margin-top: 1.5rem; margin-bottom: 0.5rem; }
.page p, .page li { font-size: 0.875rem; color: var(--muted-fg); line-height: 1.8; }
.page ul.disc { list-style: disc; padding-left: 1.25rem; }
.page ul.disc li { padding: 0.125rem 0; }
.page a.link { color: var(--primary); }
.page a.link:hover { text-decoration: underline; }

/* About cards */
.about-cards { display: grid; gap: 1.5rem; margin: 2rem 0; }
.about-card { display: flex; gap: 1rem; padding: 1.5rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); }
.about-card .icon { color: var(--primary); flex-shrink: 0; }
.about-card h2 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.25rem; margin-top: 0; }
.about-card p { font-size: 0.875rem; color: var(--muted-fg); }
.info-box { margin-top: 2rem; padding: 1.5rem; border-radius: var(--radius); background: var(--secondary); }
.info-box p { margin: 0.125rem 0; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.contact-item { display: flex; gap: 0.75rem; }
.contact-item .icon { color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.contact-item .label { font-size: 0.875rem; font-weight: 500; }
.contact-item .value { font-size: 0.875rem; color: var(--muted-fg); }
.contact-form { padding: 1.5rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.25rem; }
.form-group input, .form-group textarea { width: 100%; padding: 0.625rem 0.75rem; border: 1px solid var(--border); border-radius: calc(var(--radius) - 2px); font-size: 0.875rem; font-family: inherit; background: var(--bg); color: var(--fg); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(37,99,235,0.15); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* Footer */
.footer { border-top: 1px solid var(--border); background: var(--card); margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; padding: 3rem 0; }
.footer h3 { font-weight: 600; margin-bottom: 0.75rem; }
.footer p, .footer a { font-size: 0.875rem; color: var(--muted-fg); }
.footer ul li { margin-bottom: 0.5rem; }
.footer a:hover { color: var(--fg); }
.footer-bottom { border-top: 1px solid var(--border); padding: 1.5rem 0; display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--muted-fg); }

@media (max-width: 768px) {
  .nav { display: none; }
  .mobile-menu-btn { display: block; }
  .pros-cons { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; }
  .specs-grid { grid-template-columns: 1fr; }
}