:root{
  /* =========================================================
     Floor Map Design System (Stage 1)

     Goals:
     - Provide shared tokens + reusable UI primitives for *all* floor-map surfaces
       (Owner editor / Host seating / Waiter map).
     - Keep backwards compatibility: existing pages that only use sb-floor-map.css
       will still work.
     ========================================================= */

  /* Surfaces */
  --sb-surface-0: var(--bg, #0e1116);
  --sb-surface-1: var(--panel, #121622);
  --sb-surface-2: var(--panel-2, #171b29);

  /* “Canvas” (map) look: slightly lighter, like the reference image but still dark-theme friendly */
  --sb-canvas-bg: rgba(255,255,255,.045);
  --sb-canvas-border: rgba(255,255,255,.12);
  --sb-canvas-shadow: 0 18px 60px rgba(0,0,0,.35);
  --sb-canvas-radius: 18px;

  /* Grid */
  --sb-grid-size: 36px;
  --sb-grid-line-1: rgba(255,255,255,.050);
  --sb-grid-line-2: rgba(255,255,255,.035);

  /* Accent */
  --sb-accent: var(--brand, #3b82f6);
  --sb-accent-soft: rgba(59,130,246,.18);
  --sb-accent-border: rgba(59,130,246,.35);

  /* Table tile */
  --sb-tile-bg-1: rgba(255,255,255,.10);
  --sb-tile-bg-2: rgba(255,255,255,.04);
  --sb-tile-border: rgba(255,255,255,.16);
  --sb-tile-shadow: 0 10px 28px rgba(0,0,0,.22);
  --sb-tile-radius: 18px;

  /* Status colors */
  --sb-st-empty: rgba(56,156,255,.60);
  --sb-st-occupied: rgba(255,90,90,.82);
  --sb-st-reserved: rgba(255,196,77,.92);
  --sb-st-dirty: rgba(120,155,255,.82);

  /* Text */
  --sb-ink: var(--ink, #e6e8ef);
  --sb-ink-muted: var(--ink-muted, #9aa3b2);

  /* Micro-interactions */
  --sb-ease: cubic-bezier(.2,.8,.2,1);
}

/* =========================================================
   Reusable primitives (can be used in templates & React)
   ========================================================= */

.sb-surface{
  border: 1px solid var(--sb-canvas-border);
  border-radius: var(--sb-canvas-radius);
  background: rgba(255,255,255,.03);
}

.sb-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  color: var(--sb-ink);
  font-size: 13px;
  line-height: 1;
}

.sb-chip:hover{
  background: rgba(255,255,255,.08);
}

.sb-chip.is-active{
  background: var(--sb-accent-soft);
  border-color: var(--sb-accent-border);
}

.sb-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: var(--sb-ink);
  font-size: 12px;
}

.sb-pill .sb-dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.sb-dot.is-empty{ background: var(--sb-st-empty); }
.sb-dot.is-occupied{ background: var(--sb-st-occupied); }
.sb-dot.is-reserved{ background: var(--sb-st-reserved); }
.sb-dot.is-dirty{ background: var(--sb-st-dirty); }

/* Floating palette / toolbar (for later stages) */
.sb-floor-floatbar{
  position:absolute;
  left:50%;
  bottom: 14px;
  transform: translateX(-50%);
  display:flex;
  gap:10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(15,18,28,.55);
  backdrop-filter: blur(10px) saturate(120%);
  box-shadow: 0 16px 40px rgba(0,0,0,.30);
}

.sb-floor-floatbtn{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color: var(--sb-ink);
  cursor:pointer;
  transition: transform .12s var(--sb-ease), background .12s var(--sb-ease), border-color .12s var(--sb-ease);
}

.sb-floor-floatbtn:hover{
  background: rgba(255,255,255,.08);
  transform: translateY(-1px);
}

.sb-floor-floatbtn.is-active{
  background: var(--sb-accent-soft);
  border-color: var(--sb-accent-border);
}

@media (max-width: 640px){
  .sb-floor-floatbar{ bottom: 10px; padding: 8px 10px; border-radius: 14px; }
  .sb-floor-floatbtn{ width: 38px; height: 38px; border-radius: 13px; }
}