:root {
  --bg: #0a0b0d;
  --bg-raised: #101216;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-border: rgba(255, 255, 255, 0.08);
  --accent: #76b900;
  --accent-dim: rgba(118, 185, 0, 0.15);
  --text: #edeef0;
  --text-dim: #9a9fa6;
  --text-dimmer: #6b7078;
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
.wrap.narrow { max-width: 720px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--panel-border);
  position: sticky;
  top: 0;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}
.brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
}
.brand span { color: var(--accent); }
.site-nav { display: flex; gap: 28px; }
.site-nav a {
  color: var(--text-dim);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--text); }

/* Hero */
.hero { padding: 90px 24px 60px; text-align: center; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); margin-bottom: 0.3em; }
.hero .accent { color: var(--accent); }
.hero-sub {
  color: var(--text-dim);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 2em;
}
.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn-accent, .btn-ghost {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-accent {
  background: var(--accent);
  color: #061400;
  box-shadow: 0 0 0 0 rgba(118, 185, 0, 0.5);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(118, 185, 0, 0.35); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--panel-border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Sections */
.section-title { font-size: 1.9rem; margin-top: 0.2em; }
.section-sub { color: var(--text-dim); margin-bottom: 2em; max-width: 640px; }

/* Cards */
.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(6px);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
  margin-bottom: 60px;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  border-color: rgba(118, 185, 0, 0.35);
}
.tier-tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-weight: 600;
}
.tagline { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 14px; }
.price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.plain-note {
  color: var(--text-dim);
  font-size: 0.86rem;
  margin: 4px 0 14px;
  line-height: 1.5;
}
.spec-row { margin-top: 10px; }
.spec-value { font-weight: 600; font-size: 1.05rem; }
.spec-label {
  display: block;
  color: var(--text-dimmer);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
  margin-bottom: 3px;
}

/* Model advisor */
.model-card { margin-bottom: 32px; }
.model-meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0 14px; }
.pill {
  background: var(--bg-raised);
  border: 1px solid var(--panel-border);
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.formula-box {
  background: var(--bg-raised);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 20px;
  margin: 18px 0;
}
.formula {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 500;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
}
.formula-plus { color: var(--text-dim); font-size: 0.95rem; }
.formula-result { color: var(--accent); font-weight: 700; }
.build-summary { margin-top: 20px; }
.build-line {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.build-line .price { font-size: 1.3rem; margin: 0; margin-left: auto; }
.alt-build {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--panel-border);
}

/* Cluster box */
.cluster-box {
  background: var(--accent-dim);
  border: 1px solid rgba(118, 185, 0, 0.3);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 16px 0;
}
.cluster-box h4 { color: var(--accent); margin-bottom: 8px; font-size: 1rem; }
.cluster-totals {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin: 14px 0;
}
.cluster-totals > div { font-weight: 600; }

/* Power gauge */
.power-block { margin: 18px 0; }
.power-headline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.power-watts {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--accent);
}
.gauge {
  height: 14px;
  border-radius: 999px;
  background: var(--bg-raised);
  border: 1px solid var(--panel-border);
  overflow: hidden;
  margin-bottom: 10px;
}
.gauge-fill {
  height: 100%;
  background: linear-gradient(90deg, #4a7a00, var(--accent));
  border-radius: 999px;
  transition: width 0.3s ease;
}

/* Choose */
.choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.choose-card { display: block; }
.choose-card:hover { transform: translateY(-6px); border-color: rgba(118, 185, 0, 0.35); box-shadow: 0 16px 40px rgba(0,0,0,0.5); }
.choose-card h2 { font-size: 1.4rem; }
.choose-card .btn-ghost { margin-top: 14px; padding: 8px 0; border: none; }

.path-tag {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.back-link { color: var(--text-dim); font-size: 0.9rem; display: inline-block; margin-bottom: 18px; }
.back-link:hover { color: var(--accent); }
.reasoning { color: var(--text-dim); margin: 18px 0 26px; font-size: 1.02rem; }
.reasoning strong { color: var(--text); }

.build-result { margin-bottom: 60px; }
.build-items { margin: 16px 0; }
.build-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--panel-border);
}
.total-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  margin: 16px 0;
}
.total-price .accent { color: var(--accent); }
.accent { color: var(--accent); }

/* Quote form */
.quote-form {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--panel-border);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}
.form-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}
input[type="text"] {
  background: var(--bg-raised);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
}
input[type="text"]:focus { outline: none; border-color: var(--accent); }

/* Confirmation */
.confirmation { text-align: left; margin-top: 40px; }

/* Requests table */
.table-wrap { overflow-x: auto; margin-bottom: 60px; }
.requests-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.requests-table th {
  text-align: left;
  color: var(--text-dimmer);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 14px;
  border-bottom: 1px solid var(--panel-border);
}
.requests-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--panel-border);
  color: var(--text-dim);
}
.requests-table td.price { color: var(--accent); font-weight: 600; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--panel-border);
  padding: 30px 24px 50px;
  margin-top: 40px;
}
.site-footer p { color: var(--text-dimmer); font-size: 0.82rem; max-width: 720px; }

@media (max-width: 640px) {
  .header-inner { flex-direction: column; gap: 12px; }
  .site-nav { gap: 18px; }
  .hero { padding: 60px 20px 40px; }
  .form-row { grid-template-columns: 1fr; }
  .cluster-totals { gap: 18px; }
  .build-line .price { margin-left: 0; }
}