/**
 * VR Travel Club — shared brand layer (club + Studio + RSM sites).
 * Load after studio-shell.css or standalone on marketing pages.
 */

:root {
  --vrtc-bg: #0d1117;
  --vrtc-bg-elevated: #161b22;
  --vrtc-bg-card: #21262d;
  --vrtc-text: #e6edf3;
  --vrtc-text-muted: #8b949e;
  --vrtc-accent: #0969da;
  --vrtc-accent-hover: #218bff;
  --vrtc-club: #8b5cf6;
  --vrtc-club-muted: rgba(139, 92, 246, 0.15);
  --vrtc-border: #30363d;
  --vrtc-wrap: 1120px;
  --vrtc-radius: 12px;
  --vrtc-radius-sm: 8px;
  --vrtc-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --vrtc-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.vrtc-page {
  min-height: 100%;
  background: var(--vrtc-bg);
  color: var(--vrtc-text);
  font-family: var(--vrtc-font);
  line-height: 1.55;
}

.vrtc-wrap {
  max-width: var(--vrtc-wrap);
  margin: 0 auto;
  padding: 0 20px;
}

/* —— Header —— */
.vrtc-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--vrtc-border);
  background: var(--vrtc-bg-elevated);
}

.vrtc-header--overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  border-bottom: none;
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.88) 0%, rgba(13, 17, 23, 0) 100%);
}

.vrtc-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 20px;
}

.vrtc-brand {
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.vrtc-brand__club {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.vrtc-header--overlay .vrtc-brand__club {
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
}

.vrtc-brand__tag {
  display: block;
  font-size: 0.72rem;
  color: var(--vrtc-text-muted);
  margin-top: 2px;
}

.vrtc-header--overlay .vrtc-brand__tag {
  color: rgba(255, 255, 255, 0.7);
}

.vrtc-eco-nav {
  display: flex;
  align-items: center;
  gap: 4px 14px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.vrtc-eco-nav a {
  color: var(--vrtc-text-muted);
  text-decoration: none;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.vrtc-header--overlay .vrtc-eco-nav a {
  color: rgba(255, 255, 255, 0.78);
}

.vrtc-eco-nav a:hover {
  color: var(--vrtc-text);
}

.vrtc-header--overlay .vrtc-eco-nav a:hover {
  color: #fff;
}

.vrtc-eco-nav a.vrtc-eco-nav__link--active {
  color: var(--vrtc-club);
  border-bottom-color: var(--vrtc-club);
}

.vrtc-header--overlay .vrtc-eco-nav a.vrtc-eco-nav__link--active {
  color: #c4b5fd;
  border-bottom-color: #c4b5fd;
}

.vrtc-lang-switcher {
  display: flex;
  gap: 4px;
  margin-left: 4px;
}

.vrtc-lang-btn {
  border: 1px solid var(--vrtc-border);
  background: transparent;
  color: var(--vrtc-text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.vrtc-lang-btn.is-active {
  border-color: var(--vrtc-club);
  color: var(--vrtc-club);
  background: var(--vrtc-club-muted);
}

/* —— Footer —— */
.vrtc-footer {
  margin-top: 48px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--vrtc-border);
  font-size: 0.85rem;
  color: var(--vrtc-text-muted);
}

.vrtc-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
}

.vrtc-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.vrtc-footer__links a {
  color: var(--vrtc-accent);
  text-decoration: none;
}

.vrtc-footer__links a:hover {
  text-decoration: underline;
}

/* —— Buttons —— */
.vrtc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--vrtc-radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.vrtc-btn--primary {
  background: var(--vrtc-accent);
  color: #fff;
}

.vrtc-btn--primary:hover {
  background: var(--vrtc-accent-hover);
}

.vrtc-btn--club {
  background: var(--vrtc-club);
  color: #fff;
}

.vrtc-btn--club:hover {
  filter: brightness(1.08);
}

.vrtc-btn--ghost {
  background: transparent;
  border-color: var(--vrtc-border);
  color: var(--vrtc-text);
}

.vrtc-btn--ghost:hover {
  border-color: var(--vrtc-text-muted);
  background: rgba(255, 255, 255, 0.04);
}

/* —— Cards (tours, ecosystem) —— */
.vrtc-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.vrtc-card {
  border-radius: var(--vrtc-radius);
  overflow: hidden;
  background: var(--vrtc-bg-card);
  border: 1px solid var(--vrtc-border);
  display: flex;
  flex-direction: column;
}

.vrtc-card__photo {
  aspect-ratio: 16 / 10;
  background: var(--card-photo, #30363d) center / cover no-repeat;
}

.vrtc-card__body {
  padding: 14px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vrtc-card__body h4 {
  margin: 0;
  font-size: 1rem;
}

.vrtc-card__body p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--vrtc-text-muted);
  flex: 1;
}

.vrtc-card__meta {
  font-size: 0.75rem;
  color: var(--vrtc-club);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.vrtc-card__link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--vrtc-accent);
  text-decoration: none;
}

.vrtc-card__link:hover {
  text-decoration: underline;
}

/* —— Section —— */
.vrtc-section {
  padding: 48px 0 0;
}

.vrtc-section h2,
.vrtc-section h3 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.vrtc-section__sub {
  margin: 0 0 20px;
  color: var(--vrtc-text-muted);
  font-size: 0.95rem;
  max-width: 52em;
}

.vrtc-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--vrtc-club-muted);
  color: #c4b5fd;
  margin-bottom: 10px;
}