/* ── Reset & base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #b5451b;  /* overridden per-business via inline <style> */
  --text:   #1a1a1a;
  --muted:  #666;
  --bg:     #fafaf8;
  --radius: 6px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ────────────────────────────────────────────────────────────────── */
.site-header {
  background: var(--accent);
  color: #fff;
  text-align: center;
  padding: 1.25rem 1rem;
}

.site-header h1 {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ── Tab navigation ────────────────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  justify-content: center;
  gap: 0;
  background: #fff;
  border-bottom: 2px solid #e0e0e0;
}

.tab-link {
  padding: 0.85rem 2rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--muted);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
}

.tab-link:hover  { color: var(--accent); }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }

.subtab-nav {
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  padding: .65rem 1rem;
}

.subtab-link {
  padding: .42rem .95rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: .9rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid #dadde3;
  transition: all .15s;
}

.subtab-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.subtab-link.active {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

/* ── Menu image ────────────────────────────────────────────────────────────── */
.menu-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1.5rem 1rem 2rem;
}

.menu-gallery {
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.menu-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 2px 16px rgba(0,0,0,.12);
  display: block;
}

.no-menu {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
  font-size: 1.1rem;
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid #e8e8e8;
}

/* ── Back to top button ───────────────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 1.3rem;
  line-height: 1;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 20;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  filter: brightness(1.06);
}

.back-to-top:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}