/* ================================================================
   ModelHub V3 — Cost Intelligence Design System
   "Stop overpaying for AI. Find the cheapest, fastest, best model."
   ================================================================ */

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

:root {
  /* Backgrounds — deep navy with slight blue shift */
  --bg: #0B1426;
  --bg-elevated: #0F1B33;
  --bg-card: #142849;
  --bg-card-hover: #1A3358;
  --bg-input: #0D1A2E;

  /* Primary — electric blue → cyan */
  --primary: #3B82F6;
  --primary-hover: #60A5FA;
  --primary-glow: rgba(59, 130, 246, 0.25);

  /* Accent — emerald green = savings / free */
  --savings: #10B981;
  --savings-bright: #34D399;
  --savings-glow: rgba(16, 185, 129, 0.25);
  --savings-bg: rgba(16, 185, 129, 0.10);

  /* Semantic */
  --text: #F0F4FA;
  --text-secondary: #C4D0E2;
  --text-muted: #8B9DB8;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-savings: rgba(16, 185, 129, 0.35);
  --border-primary: rgba(59, 130, 246, 0.35);
  --yellow: #FBBF24;
  --amber: #F59E0B;
  --red: #EF4444;
  --red-bg: rgba(239, 68, 68, 0.10);
  --purple: #A78BFA;

  /* Radius */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow-blue: 0 0 32px rgba(59, 130, 246, 0.15);
  --shadow-glow-green: 0 0 32px rgba(16, 185, 129, 0.15);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-hover); }

/* ===== Navigation V3 ===== */
.nav-v3 {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11, 20, 38, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-v3-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 64px;
}
.nav-v3-logo {
  font-size: 22px; font-weight: 800; color: var(--text);
  display: flex; align-items: center; gap: 8px;
  letter-spacing: -0.02em;
}
.nav-v3-logo span { color: var(--primary); }
.nav-v3-logo img { width: 32px; height: 32px; object-fit: contain; }
.nav-v3-logo:hover { color: var(--text); text-decoration: none; }
.nav-v3-links { display: flex; gap: 4px; align-items: center; }
.nav-v3-links a {
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  padding: 6px 12px; border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.nav-v3-links a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.nav-v3-links a.active { color: var(--primary); background: rgba(59,130,246,0.10); }
.nav-v3-links a.nav-free {
  color: var(--savings-bright);
  background: var(--savings-bg);
  border: 1px solid var(--border-savings);
}
.nav-v3-links a.nav-free:hover {
  background: rgba(16,185,129,0.18);
  border-color: rgba(16,185,129,0.5);
}
.nav-v3-right { display: flex; align-items: center; gap: 12px; }
.nav-v3-search {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  color: var(--text); font-size: 14px;
  width: 200px; outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.nav-v3-search::placeholder { color: var(--text-muted); }
.nav-v3-search:focus { border-color: var(--border-primary); background: var(--bg-elevated); }
.nav-v3-cta {
  background: var(--primary); color: white; border: none;
  border-radius: var(--radius-sm); padding: 8px 18px; font-size: 14px;
  font-weight: 600; cursor: pointer; transition: all 0.2s;
  white-space: nowrap;
}
.nav-v3-cta:hover { background: var(--primary-hover); transform: translateY(-1px); }
.nav-v3-hamburger { display: none; background: none; border: none; color: var(--text); font-size: 24px; cursor: pointer; }

/* ===== Badges & Pills ===== */
.badge-free {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--savings-bg); color: var(--savings-bright);
  border: 1px solid var(--border-savings);
  border-radius: 999px; padding: 3px 10px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.02em;
}
.badge-save {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(251, 191, 36, 0.12); color: var(--yellow);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: 999px; padding: 3px 10px;
  font-size: 11px; font-weight: 700;
}
.badge-new {
  display: inline-flex; align-items: center;
  background: rgba(167, 139, 250, 0.12); color: var(--purple);
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: 999px; padding: 3px 10px;
  font-size: 11px; font-weight: 700;
}
.badge-hot {
  display: inline-flex; align-items: center;
  background: rgba(239, 68, 68, 0.12); color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 999px; padding: 3px 10px;
  font-size: 11px; font-weight: 700;
}
.badge-best-value {
  display: inline-flex; align-items: center; gap: 4px;
  background: linear-gradient(135deg, rgba(16,185,129,0.18), rgba(59,130,246,0.18));
  color: var(--savings-bright);
  border: 1px solid var(--border-savings);
  border-radius: 999px; padding: 4px 12px;
  font-size: 12px; font-weight: 700;
}

/* ===== Buttons ===== */
.btn-v3 {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; border-radius: var(--radius); padding: 12px 24px;
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em;
  border: none; cursor: pointer; user-select: none;
  transition: all 0.2s ease; text-decoration: none;
}
.btn-v3:active { transform: translateY(1px); }
.btn-v3-primary {
  background: var(--primary); color: white;
  box-shadow: 0 4px 20px var(--primary-glow);
}
.btn-v3-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 6px 28px var(--primary-glow); }
.btn-v3-savings {
  background: var(--savings); color: white;
  box-shadow: 0 4px 20px var(--savings-glow);
}
.btn-v3-savings:hover { background: var(--savings-bright); transform: translateY(-1px); box-shadow: 0 6px 28px var(--savings-glow); }
.btn-v3-ghost {
  background: rgba(255,255,255,0.04); color: var(--text);
  border: 1px solid var(--border);
}
.btn-v3-ghost:hover { background: rgba(255,255,255,0.08); border-color: var(--border-hover); }

/* ===== Hero V3 ===== */
.hero-v3 {
  max-width: 1280px; margin: 0 auto;
  padding: 56px 24px 40px;
  text-align: center;
  position: relative;
}
.hero-v3-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--savings-bg); color: var(--savings-bright);
  border: 1px solid var(--border-savings);
  border-radius: 999px; padding: 6px 16px;
  font-size: 13px; font-weight: 600;
  margin-bottom: 24px;
}
.hero-v3-eyebrow .live-dot {
  width: 8px; height: 8px; background: var(--savings-bright); border-radius: 50%;
  animation: pulse-green 2s infinite;
}
@keyframes pulse-green {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--savings-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px transparent; }
}
.hero-v3 h1 {
  font-size: 52px; font-weight: 800; line-height: 1.08;
  letter-spacing: -0.03em; margin-bottom: 20px;
  max-width: 880px; margin-left: auto; margin-right: auto;
}
.hero-v3 h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--savings-bright) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-v3 h1 .savings-text {
  color: var(--savings-bright);
}
.hero-v3-sub {
  font-size: 18px; color: var(--text-secondary); line-height: 1.6;
  max-width: 640px; margin: 0 auto 32px;
}
.hero-v3-search {
  display: flex; gap: 8px; align-items: center;
  max-width: 640px; margin: 0 auto 16px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 6px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.hero-v3-search:focus-within {
  border-color: var(--border-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.10);
}
.hero-v3-search input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-size: 16px; padding: 12px 16px;
}
.hero-v3-search input::placeholder { color: var(--text-muted); }
.hero-v3-search button {
  background: var(--primary); color: white; border: none;
  border-radius: var(--radius-sm); padding: 12px 28px;
  font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: background 0.2s;
}
.hero-v3-search button:hover { background: var(--primary-hover); }
.hero-v3-quick {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 40px;
}
.hero-v3-quick span {
  font-size: 13px; color: var(--text-secondary); cursor: pointer;
  padding: 6px 14px; border-radius: 999px;
  background: var(--bg-card); border: 1px solid var(--border);
  transition: all 0.2s;
}
.hero-v3-quick span:hover { color: var(--text); border-color: var(--border-primary); background: var(--bg-card-hover); }

/* ===== Stats Bar V3 ===== */
.stats-bar-v3 {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  max-width: 1280px; margin: 0 auto;
  background: var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  margin-bottom: 0;
}
.stat-cell {
  background: var(--bg-elevated); padding: 28px 24px; text-align: center;
  transition: background 0.2s;
}
.stat-cell:hover { background: var(--bg-card); }
.stat-value {
  font-size: 36px; font-weight: 800; line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-value.savings { color: var(--savings-bright); -webkit-text-fill-color: var(--savings-bright); }
.stat-label {
  font-size: 13px; color: var(--text-muted); margin-top: 8px;
  text-transform: uppercase; letter-spacing: 0.06em; font-weight: 500;
}
.stat-sub {
  font-size: 12px; color: var(--text-muted); margin-top: 4px;
}

/* ===== Section Common V3 ===== */
.section-v3 {
  max-width: 1280px; margin: 0 auto; padding: 80px 24px;
}
.section-v3-header { text-align: center; margin-bottom: 48px; }
.section-v3-header h2 {
  font-size: 36px; font-weight: 800; letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-v3-header p {
  font-size: 17px; color: var(--text-secondary); max-width: 600px; margin: 0 auto;
}
.section-v3-header .section-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 12px;
}

/* ===== Free Model Showcase ===== */
.free-showcase {
  background: linear-gradient(135deg, var(--bg-elevated) 0%, rgba(16,185,129,0.04) 100%);
  border: 1px solid var(--border-savings);
  border-radius: var(--radius-xl); padding: 48px;
  position: relative; overflow: hidden;
}
.free-showcase::before {
  content: ''; position: absolute; top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--savings-glow) 0%, transparent 70%);
  pointer-events: none;
}
.free-showcase-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: var(--savings-bright);
  margin-bottom: 16px;
}
.free-showcase h3 {
  font-size: 28px; font-weight: 800; margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.free-showcase p {
  font-size: 15px; color: var(--text-secondary); margin-bottom: 24px;
  max-width: 500px;
}

/* ===== Model Card V3 ===== */
.model-card-v3 {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  transition: all 0.25s; cursor: pointer; position: relative;
  display: flex; flex-direction: column; gap: 12px;
}
.model-card-v3:hover {
  border-color: var(--border-hover); background: var(--bg-card-hover);
  transform: translateY(-2px); box-shadow: var(--shadow-hover);
}
.model-card-v3.is-free {
  border-color: var(--border-savings);
}
.model-card-v3.is-free::before {
  content: 'FREE'; position: absolute; top: -1px; right: 16px;
  background: var(--savings); color: white;
  font-size: 10px; font-weight: 800; letter-spacing: 0.08em;
  padding: 4px 10px; border-radius: 0 0 6px 6px;
}
.model-card-v3-top {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
}
.model-card-v3-name {
  font-size: 17px; font-weight: 700; line-height: 1.3;
}
.model-card-v3-provider {
  font-size: 13px; color: var(--text-muted); margin-top: 2px;
}
.model-card-v3-price {
  text-align: right;
}
.model-card-v3-price .price-val {
  font-size: 20px; font-weight: 800; color: var(--savings-bright);
}
.model-card-v3-price .price-unit {
  font-size: 11px; color: var(--text-muted);
}
.model-card-v3-price .price-free {
  font-size: 18px; font-weight: 800; color: var(--savings-bright);
}
.model-card-v3-features {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.model-card-v3-feature {
  font-size: 11px; padding: 3px 8px; border-radius: 6px;
  background: rgba(255,255,255,0.06); color: var(--text-secondary);
  border: 1px solid var(--border);
}
.model-card-v3-score {
  display: flex; align-items: center; gap: 12px;
  padding-top: 12px; border-top: 1px solid var(--border);
}
.model-card-v3-score-bar {
  flex: 1; height: 6px; border-radius: 3px;
  background: rgba(255,255,255,0.06); overflow: hidden;
}
.model-card-v3-score-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--savings-bright));
  transition: width 0.8s ease;
}
.model-card-v3-score-val {
  font-size: 14px; font-weight: 700; color: var(--savings-bright);
}

/* ===== Savings Calculator Widget ===== */
.savings-widget {
  background: var(--bg-card); border: 1px solid var(--border-savings);
  border-radius: var(--radius-lg); padding: 32px;
  position: relative; overflow: hidden;
}
.savings-widget::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--savings), var(--primary));
}
.savings-widget-title {
  font-size: 18px; font-weight: 700; margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}
.savings-result {
  font-size: 48px; font-weight: 800; color: var(--savings-bright);
  letter-spacing: -0.03em; line-height: 1;
}
.savings-result-label {
  font-size: 14px; color: var(--text-muted); margin-top: 8px;
}
.savings-comparison {
  display: flex; gap: 16px; margin-top: 24px;
  padding-top: 24px; border-top: 1px solid var(--border);
}
.savings-comparison-item {
  flex: 1; text-align: center;
}
.savings-comparison-item .label {
  font-size: 12px; color: var(--text-muted); margin-bottom: 6px;
}
.savings-comparison-item .value {
  font-size: 16px; font-weight: 700;
}
.savings-comparison-item.cheap .value { color: var(--savings-bright); }
.savings-comparison-item.expensive .value { color: #F87171; }

/* ===== Value Props Grid ===== */
.value-props-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.value-prop-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  transition: all 0.25s; text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: 12px;
}
.value-prop-card:hover {
  border-color: var(--border-hover); background: var(--bg-card-hover);
  transform: translateY(-2px); text-decoration: none; color: inherit;
}
.value-prop-icon {
  width: 44px; height: 44px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.value-prop-icon.blue { background: rgba(59,130,246,0.12); color: var(--primary); }
.value-prop-icon.green { background: var(--savings-bg); color: var(--savings-bright); }
.value-prop-icon.amber { background: rgba(251,191,36,0.12); color: var(--yellow); }
.value-prop-icon.purple { background: rgba(167,139,250,0.12); color: var(--purple); }
.value-prop-title {
  font-size: 18px; font-weight: 700;
}
.value-prop-desc {
  font-size: 14px; color: var(--text-secondary); line-height: 1.6;
}
.value-prop-cta {
  font-size: 14px; font-weight: 600; color: var(--primary);
  margin-top: auto; padding-top: 8px;
}
.value-prop-card:hover .value-prop-cta { color: var(--primary-hover); }

/* ===== Price Comparison Bar ===== */
.price-compare-bar {
  display: flex; align-items: center; gap: 8px;
  height: 32px; border-radius: var(--radius-sm);
  overflow: hidden; background: rgba(255,255,255,0.04);
}
.price-compare-segment {
  height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: white;
  transition: width 0.6s ease;
  min-width: 0; overflow: hidden; white-space: nowrap;
}
.price-compare-segment.cheapest { background: var(--savings); }
.price-compare-segment.mid { background: var(--amber); }
.price-compare-segment.expensive { background: var(--red); }

/* ===== Ranking Table V3 ===== */
.rank-table-v3 {
  width: 100%; border-collapse: collapse;
  background: var(--bg-card); border-radius: var(--radius-lg);
  overflow: hidden;
}
.rank-table-v3 th {
  text-align: left; padding: 14px 16px;
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.rank-table-v3 td {
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.rank-table-v3 tr:last-child td { border-bottom: none; }
.rank-table-v3 tr:hover td { background: var(--bg-card-hover); }
.rank-table-v3 .rank-num {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800;
}
.rank-table-v3 .rank-1 { background: rgba(251,191,36,0.15); color: var(--yellow); }
.rank-table-v3 .rank-2 { background: rgba(148,163,184,0.15); color: #CBD5E1; }
.rank-table-v3 .rank-3 { background: rgba(180,83,9,0.15); color: #D97706; }
.rank-table-v3 .price-cell { font-weight: 700; }
.rank-table-v3 .price-cell.free { color: var(--savings-bright); }

/* ===== CTA Banner ===== */
.cta-banner-v3 {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
}
.cta-banner-v3-inner {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(16,185,129,0.08) 100%);
  border: 1px solid var(--border-savings);
  border-radius: var(--radius-xl); padding: 56px 48px;
  text-align: center; position: relative; overflow: hidden;
}
.cta-banner-v3-inner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top, var(--savings-glow) 0%, transparent 60%);
  pointer-events: none;
}
.cta-banner-v3 h2 {
  font-size: 32px; font-weight: 800; margin-bottom: 12px;
  position: relative;
}
.cta-banner-v3 p {
  font-size: 16px; color: var(--text-secondary); margin-bottom: 28px;
  position: relative;
}
.cta-banner-v3-buttons {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  position: relative;
}

/* ===== Footer V3 ===== */
.footer-v3 {
  border-top: 1px solid var(--border);
  margin-top: 80px;
}
.footer-v3-inner {
  max-width: 1280px; margin: 0 auto; padding: 56px 24px 32px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px;
}
.footer-v3-brand h4 {
  font-size: 20px; font-weight: 800; margin-bottom: 12px;
}
.footer-v3-brand p {
  font-size: 14px; color: var(--text-muted); max-width: 320px; line-height: 1.6;
}
.footer-v3-col h5 {
  font-size: 13px; font-weight: 700; color: var(--text);
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px;
}
.footer-v3-col a {
  display: block; font-size: 14px; color: var(--text-muted);
  padding: 4px 0; transition: color 0.2s;
}
.footer-v3-col a:hover { color: var(--text); text-decoration: none; }
.footer-v3-bottom {
  max-width: 1280px; margin: 0 auto; padding: 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--text-muted);
}

/* ===== Provider Coverage Grid ===== */
.provider-grid-v3 {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}
.provider-chip-v3 {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  text-align: center; transition: all 0.2s;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.provider-chip-v3:hover {
  border-color: var(--border-hover); background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.provider-chip-v3 .provider-name {
  font-size: 13px; font-weight: 700;
}
.provider-chip-v3 .provider-count {
  font-size: 11px; color: var(--text-muted);
}

@media (max-width: 1200px) {
  .provider-grid-v3 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .provider-grid-v3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .provider-grid-v3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ===== Split Panels (Non-card Lists) ===== */
.mh-split-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.mh-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.mh-split-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  padding: 18px 20px;
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s;
}
.mh-split-item:hover { background: rgba(255,255,255,0.04); }
.mh-split-item:nth-child(odd) { border-right: 1px solid var(--border); }
.mh-split-item:nth-last-child(-n+2) { border-bottom: 0; }
.mh-split-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.12);
  color: var(--primary);
}
.mh-split-icon.green { background: rgba(16,185,129,0.12); color: var(--savings-bright); }
.mh-split-icon.amber { background: rgba(251,191,36,0.12); color: var(--yellow); }
.mh-split-icon.purple { background: rgba(167,139,250,0.14); color: var(--purple); }
.mh-split-icon.blue { background: rgba(59,130,246,0.12); color: var(--primary); }
.mh-split-icon svg { width: 18px; height: 18px; }
.mh-split-main { min-width: 0; }
.mh-split-title { font-size: 15px; font-weight: 800; letter-spacing: -0.01em; }
.mh-split-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.55; margin-top: 4px; }
.mh-split-meta { font-size: 12px; color: var(--text-muted); margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border); }
.mh-split-meta.strong { color: var(--savings-bright); font-weight: 700; border-top-color: rgba(16,185,129,0.25); }
.mh-split-cta { font-size: 13px; font-weight: 700; color: var(--primary-hover); margin-top: 8px; }

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .nav-v3-links { display: none; }
  .nav-v3-search { display: none; }
  .nav-v3-hamburger { display: block; }
  .hero-v3 h1 { font-size: 36px; }
  .hero-v3-sub { font-size: 16px; }
  .stats-bar-v3 { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 28px; }
  .section-v3 { padding: 56px 24px; }
  .section-v3-header h2 { font-size: 28px; }
  .free-showcase { padding: 32px 24px; }
  .footer-v3-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-banner-v3-inner { padding: 40px 24px; }
  .cta-banner-v3 h2 { font-size: 24px; }
  .mh-split-grid { grid-template-columns: 1fr; }
  .mh-split-item { border-right: 0 !important; }
  .mh-split-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--border); }
  .mh-split-item:last-child { border-bottom: 0; }
}
@media (max-width: 640px) {
  .hero-v3 { padding: 40px 16px 24px; }
  .hero-v3 h1 { font-size: 30px; }
  .hero-v3-search { flex-direction: column; }
  .hero-v3-search button { width: 100%; }
  .stats-bar-v3 { grid-template-columns: 1fr 1fr; }
  .footer-v3-inner { grid-template-columns: 1fr; }
  .savings-result { font-size: 36px; }
  .savings-comparison { flex-direction: column; }
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-savings { color: var(--savings-bright); }
.text-muted { color: var(--text-muted); }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.mh-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .mh-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .mh-grid-4 { grid-template-columns: 1fr; } }