/* ============================================
   RealityCheck — Layout Styles
   Header, footer, bottom nav, page structure,
   responsive breakpoints.
   ============================================ */

/* ── Page shell ──────────────────────────── */
.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--color-bg);
}

/* ── Header ──────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  gap: var(--space-3);
}

.site-header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
}

.site-header-logo {
  width: 32px; height: 32px;
  background: var(--color-brand-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
}

.site-header-name {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.site-header-location {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  cursor: pointer;
}

.site-header-location:hover { color: var(--color-brand-primary); }

.site-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Page-level header (back button + title) */
.page-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  gap: var(--space-3);
}

.page-header-back {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-text-primary);
  flex-shrink: 0;
  transition: background var(--transition-fast);
  text-decoration: none;
}
.page-header-back:hover { background: var(--color-surface-subtle); }

.page-header-content { flex: 1; min-width: 0; }

.page-header-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-header-sub {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: 1px;
}

/* Step header (for multi-step forms) */
.step-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
}

.step-header-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.step-header-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  flex: 1;
}

.step-progress {
  height: 3px;
  background: var(--color-surface-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.step-progress-fill {
  height: 100%;
  background: var(--color-brand-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ── Main content ────────────────────────── */
.page-content {
  flex: 1;
  padding-bottom: var(--bottom-nav-height);
  overflow-y: auto;
}

.page-content-inner {
  padding: var(--space-4);
}

/* ── Bottom navigation ───────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-width);
  height: var(--bottom-nav-height);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  z-index: 100;
  padding: 0 var(--space-2);
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  background: transparent;
  border: none;
  position: relative;
}

.bottom-nav-item:hover { background: var(--color-surface-subtle); }

.bottom-nav-item.active .bottom-nav-icon { color: var(--color-brand-primary); }
.bottom-nav-item.active .bottom-nav-label { color: var(--color-brand-primary); }

.bottom-nav-icon {
  font-size: 22px;
  color: var(--color-text-tertiary);
  line-height: 1;
  transition: color var(--transition-fast);
}

.bottom-nav-label {
  font-size: 10px;
  font-weight: var(--weight-medium);
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
}

/* Post FAB button */
.post-fab {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--color-brand-primary);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 16px rgba(13,147,115,0.4);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}
.post-fab:hover {
  background: var(--color-brand-dark);
  transform: scale(1.05);
}

/* ── Footer ──────────────────────────────── */
.site-footer {
  display: none;   /* hidden on mobile — shown on desktop via media query */
  background: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer-brand {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-footer-link {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
}
.site-footer-link:hover { color: var(--color-brand-primary); }

.site-footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
}

/* ── Section spacing ─────────────────────── */
.section { margin-bottom: var(--space-6); }
.section-sm { margin-bottom: var(--space-4); }
.section-lg { margin-bottom: var(--space-8); }

/* ── Utility: stack ──────────────────────── */
.stack { display: flex; flex-direction: column; }
.stack-2  { gap: var(--space-2); }
.stack-3  { gap: var(--space-3); }
.stack-4  { gap: var(--space-4); }

.row { display: flex; align-items: center; }
.row-between { display: flex; align-items: center; justify-content: space-between; }
.row-2 { gap: var(--space-2); }
.row-3 { gap: var(--space-3); }

/* ── Desktop — centred mobile-app layout ─── */
/*    Max 520px wide, centred, card shadow.   */
/*    Bottom nav stays — no sidebar.          */
@media (min-width: 600px) {

  body {
    background: #EAEDF0;  /* subtle page bg so card pops */
  }

  .page-shell {
    max-width: 520px;
    margin: 0 auto;
    background: var(--color-bg);
    box-shadow: 0 0 60px rgba(0,0,0,0.12);
    min-height: 100vh;
    position: relative;
  }

  /* Bottom nav stays fixed but constrained to shell width */
  .bottom-nav {
    max-width: 520px;
  }

  .site-footer { display: block; }
}