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

:root {
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --success: #10b981;
  --danger: #ef4444;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --max-width: 1200px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--gray-800);
  background: #fff;
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ========== Header ========== */
.site-header {
  background: var(--gray-900);
  color: #fff;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-lg);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
}
.site-logo span { color: var(--accent); }

.main-nav { display: flex; gap: 4px; }
.main-nav a {
  color: var(--gray-300);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
}
.main-nav a:hover, .main-nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ========== Hero ========== */
.hero {
  background: linear-gradient(135deg, var(--gray-900) 0%, #1e3a5f 100%);
  color: #fff;
  padding: 80px 20px;
  text-align: center;
}
.hero h1 { font-size: 2.75rem; font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.hero .subtitle { font-size: 1.2rem; color: var(--gray-300); max-width: 600px; margin: 0 auto 32px; }
.hero .trust-bar { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.hero .trust-item { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; color: var(--gray-300); }
.hero .trust-item .icon { color: var(--success); font-size: 1.2rem; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-accent { background: var(--accent); color: var(--gray-900); }
.btn-accent:hover { background: var(--accent-hover); color: var(--gray-900); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

/* ========== Provider Cards ========== */
.providers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 40px 0;
}

.provider-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 28px;
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 24px;
  align-items: start;
  transition: all 0.2s;
  position: relative;
}
.provider-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary); }
.provider-card.editors-pick { border-color: var(--accent); border-width: 2px; }
.provider-card.editors-pick::before {
  content: "Editor's Pick";
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--accent);
  color: var(--gray-900);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  text-transform: uppercase;
}

.provider-info { text-align: center; }
.provider-logo { width: 80px; height: 80px; border-radius: 12px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; font-weight: 700; font-size: 0.75rem; color: var(--gray-500); }
.provider-name { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.provider-rating { color: var(--accent); font-weight: 700; font-size: 1rem; }
.provider-rating .stars { letter-spacing: 2px; }

.provider-details { }
.provider-price { font-size: 0.9rem; color: var(--gray-500); margin-bottom: 12px; }
.provider-price .amount { font-size: 1.75rem; font-weight: 800; color: var(--gray-900); }
.provider-specs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 16px; }
.spec-item { text-align: center; padding: 8px; background: var(--gray-50); border-radius: 6px; }
.spec-label { font-size: 0.7rem; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.5px; }
.spec-value { font-weight: 700; font-size: 0.9rem; color: var(--gray-800); }

.provider-pros { list-style: none; }
.provider-pros li { padding: 3px 0; font-size: 0.9rem; color: var(--gray-700); }
.provider-pros li::before { content: "✓ "; color: var(--success); font-weight: 700; }

.provider-actions { display: flex; flex-direction: column; gap: 8px; min-width: 160px; align-items: stretch; }

/* ========== Comparison Table ========== */
.comparison-table-wrap { overflow-x: auto; margin: 24px 0; }
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.comparison-table th {
  background: var(--gray-900);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
.comparison-table th:hover { background: var(--gray-700); }
.comparison-table th .sort-icon { margin-left: 4px; opacity: 0.5; }
.comparison-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.comparison-table tr:hover td { background: var(--gray-50); }
.comparison-table .provider-cell { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.comparison-table .price-cell { font-weight: 700; color: var(--primary); }
.comparison-table .check { color: var(--success); }
.comparison-table .cross { color: var(--danger); }

/* ========== Calculator ========== */
.calculator {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 32px;
  max-width: 800px;
  margin: 0 auto;
}
.calc-step { margin-bottom: 24px; }
.calc-step label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.95rem; }
.calc-step select, .calc-step input[type="range"] { width: 100%; padding: 10px; border: 1px solid var(--gray-300); border-radius: var(--radius); font-size: 0.95rem; }
.calc-step select { background: #fff; cursor: pointer; }
.range-labels { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--gray-500); margin-top: 4px; }
.range-value { font-weight: 700; color: var(--primary); font-size: 1.1rem; }

.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.calc-result-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.calc-result-card.recommended { border-color: var(--accent); border-width: 2px; }
.calc-result-card.recommended::before { content: "Best Match"; display: block; color: var(--accent); font-weight: 700; font-size: 0.75rem; text-transform: uppercase; margin-bottom: 8px; }
.calc-result-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.calc-result-card .price { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.calc-result-card .specs { font-size: 0.85rem; color: var(--gray-500); margin: 8px 0 16px; }

/* ========== Benchmark Chart ========== */
.benchmark-bars { max-width: 700px; margin: 24px auto; }
.bench-row { display: grid; grid-template-columns: 120px 1fr 60px; gap: 12px; align-items: center; margin-bottom: 12px; }
.bench-label { font-weight: 600; font-size: 0.9rem; text-align: right; }
.bench-bar-wrap { background: var(--gray-200); border-radius: 6px; height: 28px; overflow: hidden; }
.bench-bar { height: 100%; border-radius: 6px; transition: width 0.8s ease; display: flex; align-items: center; padding-left: 8px; font-size: 0.75rem; font-weight: 600; color: #fff; }
.bench-bar.cpu { background: linear-gradient(90deg, var(--primary), #3b82f6); }
.bench-bar.disk { background: linear-gradient(90deg, #059669, var(--success)); }
.bench-bar.network { background: linear-gradient(90deg, #7c3aed, #a78bfa); }
.bench-score { font-weight: 700; font-size: 0.9rem; }

/* ========== Content Sections ========== */
.section { padding: 60px 0; }
.section-alt { background: var(--gray-50); }
.section-title { font-size: 2rem; font-weight: 800; margin-bottom: 8px; color: var(--gray-900); }
.section-subtitle { color: var(--gray-500); font-size: 1.05rem; margin-bottom: 32px; }

.toc {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
}
.toc h3 { font-size: 1rem; margin-bottom: 12px; color: var(--gray-700); }
.toc ol { padding-left: 20px; }
.toc li { padding: 4px 0; font-size: 0.9rem; }

.content-body { max-width: 800px; }
.content-body h2 { font-size: 1.5rem; font-weight: 700; margin: 40px 0 16px; padding-top: 16px; border-top: 1px solid var(--gray-200); color: var(--gray-900); }
.content-body h3 { font-size: 1.2rem; font-weight: 600; margin: 24px 0 12px; color: var(--gray-800); }
.content-body p { margin-bottom: 16px; color: var(--gray-700); line-height: 1.7; }
.content-body ul, .content-body ol { margin-bottom: 16px; padding-left: 24px; }
.content-body li { padding: 4px 0; color: var(--gray-700); }

/* CTA Box */
.cta-box {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border: 1px solid #93c5fd;
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
  text-align: center;
}
.cta-box h3 { margin-bottom: 8px; }
.cta-box p { margin-bottom: 16px; color: var(--gray-700); }

/* ========== Footer ========== */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 48px 20px 24px;
  margin-top: 60px;
}
.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; }
.footer-col h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.footer-col a { display: block; color: var(--gray-300); font-size: 0.85rem; padding: 4px 0; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.8rem;
}
.footer-bottom .affiliate-disclosure { max-width: 600px; margin: 0 auto 12px; font-size: 0.75rem; color: var(--gray-500); }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.75rem; }
  .hero { padding: 48px 20px; }
  .provider-card { grid-template-columns: 1fr; }
  .provider-specs { grid-template-columns: repeat(2, 1fr); }
  .provider-actions { flex-direction: row; }
  .calc-results { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--gray-900); padding: 16px; }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .bench-row { grid-template-columns: 80px 1fr 50px; }
}