:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #121826;
  --bg-card: rgba(22, 30, 46, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --sys76-color: #f28b24;
  --sys76-glow: rgba(242, 139, 36, 0.25);
  --mac-color: #38bdf8;
  --mac-glow: rgba(56, 189, 248, 0.25);
  
  --green: #10b981;
  --green-glow: rgba(16, 185, 129, 0.2);
  --red: #ef4444;
  --red-glow: rgba(239, 68, 68, 0.2);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

.glow-bg {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 600px;
  background: radial-gradient(circle at 50% 0%, rgba(242, 139, 36, 0.12) 0%, rgba(56, 189, 248, 0.08) 50%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-badge {
  background: rgba(242, 139, 36, 0.15);
  color: var(--sys76-color);
  border: 1px solid rgba(242, 139, 36, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-main);
}

/* Verdict Hero */
.hero-section {
  padding: 48px 0 32px;
}

.verdict-banner {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.12), rgba(242, 139, 36, 0.15));
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  margin-bottom: 40px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
}

.verdict-tag {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--red);
  margin-bottom: 8px;
}

.verdict-banner h1 {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  background: linear-gradient(to right, #ffffff, #fca5a5);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.verdict-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 24px;
}

.cash-callout {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: rgba(18, 24, 38, 0.9);
  border: 1px solid var(--border-hover);
  padding: 16px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.callout-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cash-amount {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--green);
  font-family: var(--font-mono);
  margin: 4px 0;
}

.callout-direction {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Device Cards Grid */
.comparison-cards-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 20px;
}

.vs-divider {
  display: flex;
  align-items: center;
  justify-content: center;
}

.vs-divider span {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.device-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.device-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.device-a {
  border-top: 3px solid var(--sys76-color);
}

.device-b {
  border-top: 3px solid var(--mac-color);
}

.device-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.sys76-tag {
  background: rgba(242, 139, 36, 0.15);
  color: var(--sys76-color);
}

.mac-tag {
  background: rgba(56, 189, 248, 0.15);
  color: var(--mac-color);
}

.device-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.model-id {
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 400;
}

.price-estimate {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: 20px;
}

.device-a .price-estimate {
  color: var(--sys76-color);
}

.device-b .price-estimate {
  color: var(--mac-color);
}

.price-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-weight: 400;
}

.specs-list {
  list-style: none;
  margin-bottom: 24px;
}

.specs-list li {
  font-size: 0.92rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.specs-list li:last-child {
  border-bottom: none;
}

.spec-label {
  color: var(--text-dim);
  font-weight: 600;
  display: inline-block;
  width: 90px;
}

.pro-con {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pill {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
}

.pill.green {
  background: var(--green-glow);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pill.red {
  background: var(--red-glow);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Section Common */
.section-block {
  padding: 48px 0;
  border-top: 1px solid var(--border-color);
}

.section-title {
  margin-bottom: 32px;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.section-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Calculator */
.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.calc-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}

.control-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
}

.toggle-buttons {
  display: flex;
  gap: 12px;
}

.toggle-btn {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}

.toggle-btn.active {
  background: rgba(242, 139, 36, 0.15);
  border-color: var(--sys76-color);
  color: var(--sys76-color);
}

.toggle-btn[data-owner="macbook"].active {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--mac-color);
  color: var(--mac-color);
}

.highlight-val {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--green);
  cursor: pointer;
  margin: 12px 0 6px;
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.calc-output {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: 24px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background: var(--bg-secondary);
  padding: 14px 18px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.92rem;
}

.price-tag {
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
}

.price-tag.green {
  background: rgba(242, 139, 36, 0.15);
  color: var(--sys76-color);
}

.price-tag.blue {
  background: rgba(56, 189, 248, 0.15);
  color: var(--mac-color);
}

.insight-box {
  background: rgba(18, 24, 38, 0.8);
  border-left: 4px solid var(--sys76-color);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.insight-box h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.insight-box p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Benchmarks */
.benchmarks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.bench-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.bench-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.bench-label-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 18px;
}

.bench-bar-container {
  margin-bottom: 14px;
}

.bench-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.score-val {
  font-family: var(--font-mono);
  font-weight: 700;
}

.bar-outer {
  height: 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.sys76-fill {
  background: linear-gradient(90deg, #f28b24, #fbbf24);
}

.mac-fill {
  background: linear-gradient(90deg, #0284c7, #38bdf8);
}

/* Mobility Grid */
.mobility-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.metric-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.metric-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.metric-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.metric-comparison {
  margin-bottom: 14px;
}

.metric-line {
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.metric-line.mac strong {
  color: var(--mac-color);
}

.metric-line.sys76 strong {
  color: var(--sys76-color);
}

.metric-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-top: auto;
}

/* Checklist */
.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.checklist-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.checklist-header h3 {
  font-size: 1.2rem;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
}

.check-item input {
  display: none;
}

.custom-check {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid var(--border-hover);
  background: var(--bg-secondary);
  display: inline-block;
  flex-shrink: 0;
  margin-top: 2px;
  position: relative;
  transition: var(--transition);
}

.check-item input:checked + .custom-check {
  background: var(--green);
  border-color: var(--green);
}

.check-item input:checked + .custom-check::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
}

.check-item input:checked ~ span:last-child {
  color: var(--text-dim);
  text-decoration: line-through;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
}

@media (max-width: 900px) {
  .comparison-cards-grid {
    grid-template-columns: 1fr;
  }
  .vs-divider {
    padding: 12px 0;
  }
  .calc-controls {
    grid-template-columns: 1fr;
  }
  .benchmarks-grid {
    grid-template-columns: 1fr;
  }
  .mobility-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  .checklist-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}