:root {
  --pf-bg: #0d1117;
  --pf-bg-2: #111820;
  --pf-bg-3: #1a2232;
  --pf-border: rgba(245,158,11,0.14);
  --pf-amber: #f59e0b;
  --pf-amber-bright: #fcd34d;
  --pf-amber-glow: rgba(245,158,11,0.08);
  --pf-text: #e8edf5;
  --pf-muted: #7a90a8;
  --pf-green: #3dffa0;
  --pf-green-dim: rgba(61,255,160,0.12);
  --pf-blue: #60a5fa;
  --pf-blue-dim: rgba(96,165,250,0.1);
  --pf-teal: #2dd4bf;
  --pf-teal-dim: rgba(45,212,191,0.1);
  --pf-orange: #fb923c;
  --pf-orange-dim: rgba(251,146,60,0.1);
  --pf-cyan: #22d3ee;
  --pf-cyan-dim: rgba(34,211,238,0.1);
  --pf-purple: #c084fc;
  --pf-purple-dim: rgba(192,132,252,0.1);
}

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

body {
  background: var(--pf-bg);
  color: var(--pf-text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Nav ── */
.tour-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: var(--pf-bg);
  border-bottom: 1px solid var(--pf-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.tour-nav-logo {
  font-size: 17px;
  font-weight: 800;
  color: var(--pf-text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.tour-nav-links {
  display: flex;
  gap: 24px;
}

.tour-nav-links a {
  font-size: 12px;
  font-weight: 700;
  color: var(--pf-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color 0.15s;
}
.tour-nav-links a:hover { color: var(--pf-text); }

.tour-nav-active { color: var(--pf-text) !important; }

.tour-nav-cta {
  background: var(--pf-amber) !important;
  color: #000 !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 800 !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  transition: background 0.15s !important;
}
.tour-nav-cta:hover { background: var(--pf-amber-bright) !important; }

.tour-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* ── Hero ────────────────────────────────────────────── */

.tour-hero {
  text-align: center;
  margin-bottom: 56px;
}

.tour-logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--pf-amber-bright);
  letter-spacing: -0.5px;
  display: block;
  margin-bottom: 12px;
}

.tour-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--pf-text);
  margin-bottom: 10px;
}

.tour-intro {
  color: var(--pf-muted);
  font-size: 0.97rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Category divider ────────────────────────────────── */

.tour-category {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 48px 0 20px;
}

.tour-category-label {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pf-amber);
  white-space: nowrap;
}

.tour-category-line {
  flex: 1;
  height: 1px;
  background: var(--pf-border);
}

/* ── Card grid ───────────────────────────────────────── */

.tour-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .tour-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Framework card ──────────────────────────────────── */

.tour-card {
  background: var(--pf-bg-2);
  border: 1px solid var(--pf-border);
  border-radius: 10px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s;
}

.tour-card:hover {
  border-color: rgba(245,158,11,0.32);
}

.tour-card-header {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tour-card-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--pf-amber-bright);
}

.tour-card-expansion {
  font-size: 0.78rem;
  color: var(--pf-muted);
  font-style: italic;
}

.tour-card-when {
  font-size: 0.85rem;
  color: var(--pf-muted);
  border-left: 2px solid var(--pf-border);
  padding-left: 10px;
}

/* ── Before / After blocks ───────────────────────────── */

.tour-example {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.tour-example-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pf-muted);
  margin-bottom: 2px;
}

.tour-example-before {
  background: var(--pf-bg-3);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 0.83rem;
  color: var(--pf-muted);
  font-family: 'Segoe UI', system-ui, sans-serif;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.tour-example-after {
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.18);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 0.83rem;
  color: var(--pf-text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Footer CTA ──────────────────────────────────────── */

.tour-footer {
  text-align: center;
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.tour-cta-btn {
  background: var(--pf-amber);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: 0.01em;
}

.tour-cta-btn:hover {
  background: var(--pf-amber-bright);
  transform: translateY(-1px);
}

.tour-cta-btn:active {
  transform: translateY(0);
}

.tour-footer-note {
  font-size: 0.83rem;
  color: var(--pf-muted);
  max-width: 420px;
}