:root {
  /* Jaken Aviation — Web3 gold/black/white */
  --brand-primary: #D4AF37; /* gold */
  --brand-secondary: #000000; /* black */
  --brand-accent: #FFD15A; /* light gold accent */
  --brand-bg: #000000; /* black background */
  --brand-surface: #ffffff; /* white cards */
  --text-primary: #0f1115; /* near-black text on white */
  --text-secondary: #4a5568; /* muted */

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --radius: 12px;
  --shadow: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-soft: 0 2px 8px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #000000, #0b0b0b 50%, #111111 100%);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10,10,10,0.7);
  backdrop-filter: saturate(130%) blur(10px);
  border-bottom: 1px solid rgba(212,175,55,0.18);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-primary), #f7de77);
  color: #fff; display: grid; place-items: center; font-weight: 700;
  box-shadow: var(--shadow-soft);
}
.site-title { margin: 0; font-size: 22px; line-height: 1.2; color: var(--brand-primary); letter-spacing: 0.2px; }
.site-subtitle { margin: 0; font-size: 12px; color: #c9c9c9; }
.cta-group { display: flex; gap: 10px; }

.main { padding: var(--space-7) 0 var(--space-8); }
.intro { color: #e6e6e6; margin: 0 0 var(--space-6); }
.intro h2 { color: #fff; margin: 0 0 6px; font-weight: 600; }
.intro p { margin: 0; opacity: 0.9; }

.calculator .grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section { grid-column: span 12; }
@media (min-width: 900px) {
  .section { grid-column: span 6; }
  .section.results { grid-column: span 12; }
}

.card {
  background: var(--brand-surface);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
  padding: 24px;
  border: 1px solid rgba(212,175,55,0.18);
}
.card h3 { margin: 0 0 var(--space-3); color: var(--brand-primary); font-size: 18px; letter-spacing: 0.2px; }

/* Consistent vertical rhythm between sections */
.card + .card { margin-top: var(--space-6); }
.resources, .faq, .cta-callout { margin-top: var(--space-6); }

.field { margin-bottom: var(--space-3); }
.field.row { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.field label { display: block; font-size: 13px; color: #22324a; margin-bottom: 6px; }
.input-prefix, .input-suffix { display: flex; align-items: center; gap: 8px; }
.input-prefix span, .input-suffix span { color: #50617b; font-weight: 600; }
input[type="number"], input[type="date"], select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d6dbe6;
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  outline: none;
}
input:focus, select:focus { border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(212,175,55,0.25); }

.segmented { display: inline-flex; background: #edf1f7; border-radius: 10px; padding: 4px; }
.seg {
  border: 0;
  background: transparent;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600; color: #27466b;
}
.seg.active { background: #fff; box-shadow: var(--shadow-soft); color: var(--brand-primary); }

.checkbox { display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.checkbox input { width: 18px; height: 18px; }

.btn {
  appearance: none; border: 0; cursor: pointer;
  background: #edf1f7; color: #09213b; font-weight: 700;
  padding: 12px 14px; border-radius: 12px; box-shadow: var(--shadow-soft);
  transition: transform 120ms ease, box-shadow 200ms ease, filter 120ms ease;
}
.btn:hover { filter: brightness(0.98); transform: translateY(-1px); }
.btn-accent { background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent)); color: #0b0b0b; box-shadow: 0 8px 24px rgba(212,175,55,0.35); }
.btn-accent:hover { box-shadow: 0 10px 30px rgba(212,175,55,0.45); }
.btn-large { padding: 14px 18px; font-size: 16px; }

.results .stats {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); margin-bottom: var(--space-4);
}
@media (min-width: 900px) {
  .results .stats { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}
.stat { background: #f6f8fd; border: 1px solid #e6ebf4; border-radius: 12px; padding: var(--space-4); }
.stat .label { font-size: 12px; color: #516684; }
.stat .value { font-size: 20px; font-weight: 800; color: #0f1115; letter-spacing: 0.2px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.schedule { margin-top: 12px; max-height: 420px; overflow: auto; border: 1px solid #e6ebf4; border-radius: 10px; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid #eef2fb; text-align: right; }
.table th { position: sticky; top: 0; background: #f9fbff; color: #385271; z-index: 1; }
.table td:first-child, .table th:first-child { text-align: left; }
.table tbody tr:hover { background: #fffef3; }

.hidden { display: none !important; }
.flex-1 { flex: 1 1 0; }

.cta-callout { margin-top: 18px; display: flex; gap: var(--space-5); align-items: center; justify-content: space-between; }
.cta-callout .cta-content h3 { margin: 0 0 6px; }
.cta-callout .cta-content p { margin: 0; color: #2b3b54; }

.site-footer { margin: 24px 0 60px; color: #c9d4ea; text-align: center; }
.site-footer .container { color: #a7b6d6; }

/* Resources */
.resources .muted { color: #60708b; margin: 6px 0 10px; }
.resource-links { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-3); }
.resource-links li { position: relative; padding-left: 18px; }
.resource-links li::before { content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent)); box-shadow: 0 0 12px rgba(212,175,55,0.5); }
.resource-links a { text-decoration: none; color: #0b58b0; font-weight: 700; }
.resource-links a:hover { text-decoration: underline; }

/* FAQ accordion */
.faq details { border: 1px solid #e6ebf4; border-radius: 12px; padding: var(--space-3) var(--space-4); margin: var(--space-3) 0; background: #fbfcff; }
.faq summary { cursor: pointer; font-weight: 700; color: #0f1115; }
.faq p { margin: 8px 0 0; color: #2b3b54; }