:root {
  --bg-deep: #0e0d0b;
  --bg-card: #161412;
  --bg-card-inner: #1e1b17;
  --bg-card-hover: #26231e;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --accent: #06b6d4;
  --accent-dim: #0891b2;
  --text-main: #f4efe6;
  --text-muted: #a39c91;
  --text-dim: #716b61;
  --success: #10b981;
  --font-heading: 'Bricolage Grotesque', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-mono);
  min-height: 100vh;
  padding: clamp(1rem, 4vw, 2.5rem) 1rem;
  line-height: 1.5;
}
.container {
  max-width: 960px;
  margin: 0 auto;
}
header {
  text-align: center;
  margin-bottom: 2rem;
}
.badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}
h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.subtitle {
  color: var(--text-muted);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  max-width: 680px;
  margin: 0 auto;
}
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .grid { grid-template-columns: 1fr 1fr; }
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.card h2 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.input-prefix {
  position: absolute;
  left: 0.75rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.input-suffix {
  position: absolute;
  right: 0.75rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}
input[type="number"], select, input[type="text"] {
  width: 100%;
  background: var(--bg-card-inner);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 0.75rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s ease;
}
input.has-prefix { padding-left: 1.75rem; }
input.has-suffix { padding-right: 2.25rem; }
input:focus, select:focus {
  border-color: var(--accent);
}
input[type="range"] {
  width: 100%;
  margin-top: 0.5rem;
  accent-color: var(--accent);
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.kpi-card {
  background: var(--bg-card-inner);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
}
.kpi-card.highlight {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.02);
}
.kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}
.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
}
.kpi-value.accent {
  color: var(--accent);
}
.kpi-value.green {
  color: var(--success);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.85rem;
  background: var(--accent);
  color: #0e0d0b;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.btn:hover { filter: brightness(1.1); }
.table-container {
  overflow-x: auto;
  margin-top: 1rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}
th {
  color: var(--text-muted);
  font-weight: 600;
  background: var(--bg-card-inner);
}
.faq-section {
  margin-top: 3rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
}
.faq-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  padding: 1rem 1.25rem;
}
.faq-item h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}
.faq-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}
footer {
  margin-top: 3rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding-bottom: 2rem;
}
footer a { color: var(--accent); text-decoration: none; }
.cross-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: 1.5rem 0;
}
.cross-links a {
  font-size: 0.75rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  color: var(--text-muted);
  text-decoration: none;
}
.cross-links a:hover {
  border-color: var(--accent);
  color: var(--text-main);
}