/* ══════════════════════════════════════════════════
   Restaurant Menu Button — style.css  v3.0
   Layout 2 cột: sidebar trái + content phải
   Font: Open Sans (no import)
══════════════════════════════════════════════════ */

.rmb-wrap {
  --rmb-accent:       #c8965c;
  --rmb-sidebar-bg:   #111111;
  --rmb-content-bg:   #1c1c1c;
  --rmb-text:         #ffffff;
  --rmb-muted:        rgba(255,255,255,.45);
  --rmb-sep:          rgba(255,255,255,.08);
  --rmb-hover:        rgba(255,255,255,.06);
  --rmb-active-bg:    rgba(200,150,92,.12);
  --rmb-border:       rgba(255,255,255,.3);
  --rmb-sidebar-w:    160px;
  --rmb-drawer-w:     480px;
  --rmb-ease:         cubic-bezier(.4,0,.2,1);

  font-family: 'Open Sans', sans-serif;
  display: inline-block;
}

.rmb-wrap *, .rmb-wrap *::before, .rmb-wrap *::after {
  box-sizing: border-box; margin: 0; padding: 0; list-style: none;
}
.rmb-wrap a   { text-decoration: none; color: inherit; }
.rmb-wrap hr  { border: none; }
.rmb-wrap ul  { list-style: none; }

/* ══ NÚT MỞ ══════════════════════════════════════ */
.rmb-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px 9px 13px;
  border: 1.5px solid var(--rmb-border);
  border-radius: 40px;
  background: transparent;
  color: var(--rmb-text);
  font-family: 'Open Sans', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .04em;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
  text-transform: none;
  transition: border-color .22s, color .22s;
}
.rmb-btn:hover,
.rmb-btn[aria-expanded="true"] {
  border-color: var(--rmb-accent);
  color: var(--rmb-accent);
}
.rmb-btn:focus-visible {
  outline: 2px solid var(--rmb-accent);
  outline-offset: 3px;
}

/* Hamburger */
.rmb-icon {
  display: flex; flex-direction: column; gap: 4.5px;
  width: 16px; flex-shrink: 0;
}
.rmb-icon span {
  display: block; height: 1.5px;
  background: currentColor; border-radius: 2px;
  transition: all .26s var(--rmb-ease);
  transform-origin: center;
}
.rmb-btn[aria-expanded="true"] .rmb-icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.rmb-btn[aria-expanded="true"] .rmb-icon span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.rmb-btn[aria-expanded="true"] .rmb-icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ══ OVERLAY ══════════════════════════════════════ */
.rmb-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 99990;
  opacity: 0; pointer-events: none;
  transition: opacity .28s var(--rmb-ease);
}
.rmb-overlay.rmb-active { opacity: 1; pointer-events: all; }

/* ══ DRAWER (2 cột) ═══════════════════════════════ */
.rmb-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: var(--rmb-drawer-w);
  max-width: 96vw;
  z-index: 99999;
  display: flex;          /* ← Hai cột nằm ngang */
  flex-direction: row;
  transform: translateX(100%);
  transition: transform .42s var(--rmb-ease);
  font-family: 'Open Sans', sans-serif;
  color: var(--rmb-text);
  overflow: hidden;
}
.rmb-drawer.rmb-open {
  transform: translateX(0);
  box-shadow: -16px 0 50px rgba(0,0,0,.55);
}

/* ══ CỘT TRÁI — SIDEBAR ═══════════════════════════ */
.rmb-sidebar {
  width: var(--rmb-sidebar-w);
  flex-shrink: 0;
  background: var(--rmb-sidebar-bg);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  border-right: 1px solid var(--rmb-sep);
}
.rmb-sidebar::-webkit-scrollbar { width: 2px; }
.rmb-sidebar::-webkit-scrollbar-thumb { background: var(--rmb-sep); }

/* Logo trong sidebar */
.rmb-sidebar-logo {
  padding: 22px 16px 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.rmb-logo {
  max-width: 100%;
  max-height: 44px;
  object-fit: contain;
  display: block;
}

.rmb-sidebar-sep {
  height: 1px;
  background: var(--rmb-sep);
  margin: 0 12px 8px;
  flex-shrink: 0;
}

/* Nav sidebar */
.rmb-sidebar-nav {
  flex: 1;
  padding: 4px 8px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Mỗi item sidebar */
.rmb-sidebar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 10px;
  border-radius: 8px;
  color: var(--rmb-muted);
  font-size: 12.5px;
  font-weight: 500;
  font-family: 'Open Sans', sans-serif;
  cursor: pointer;
  transition: background .18s, color .18s;
  border: none;
  text-decoration: none;
  text-align: left;
  line-height: 1.3;
  position: relative;
}
.rmb-sidebar-item:hover {
  background: var(--rmb-hover);
  color: var(--rmb-text);
}
.rmb-sidebar-item.is-active {
  background: var(--rmb-active-bg);
  color: var(--rmb-accent);
}
/* Đường kẻ accent bên trái khi active */
.rmb-sidebar-item.is-active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; height: 60%;
  width: 3px;
  background: var(--rmb-accent);
  border-radius: 0 2px 2px 0;
}
.rmb-sidebar-item:focus-visible {
  outline: 2px solid var(--rmb-accent);
  outline-offset: -2px;
}

.rmb-sitem-icon { font-size: 17px; line-height: 1; flex-shrink: 0; }
.rmb-sitem-name {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  font-family: 'Open Sans', sans-serif;
}

.rmb-sitem-chevron {
  color: rgba(255,255,255,.2);
  flex-shrink: 0;
  transition: color .18s;
}
.rmb-sidebar-item.is-active .rmb-sitem-chevron,
.rmb-sidebar-item:hover     .rmb-sitem-chevron {
  color: var(--rmb-accent);
}

/* ══ CỘT PHẢI — CONTENT ══════════════════════════ */
.rmb-content {
  flex: 1;
  background: var(--rmb-content-bg);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
}
.rmb-content::-webkit-scrollbar { width: 3px; }
.rmb-content::-webkit-scrollbar-thumb { background: var(--rmb-sep); }

/* Nút đóng */
.rmb-close {
  position: absolute;
  top: 16px; right: 16px;
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: transparent; border: none;
  color: rgba(255,255,255,.45);
  cursor: pointer;
  transition: background .18s, color .18s;
  font-family: inherit;
  z-index: 2;
  flex-shrink: 0;
}
.rmb-close:hover { background: rgba(255,255,255,.1); color: #fff; }
.rmb-close:focus-visible { outline: 2px solid var(--rmb-accent); }

/* ── Panels ── */
.rmb-panel {
  display: none;
  flex-direction: column;
  padding: 36px 24px 28px;
  animation: rmbFadeIn .22s ease both;
}
.rmb-panel.is-active { display: flex; }

@keyframes rmbFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.rmb-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.rmb-panel-icon { font-size: 22px; line-height: 1; }
.rmb-panel-title {
  font-size: 18px;
  font-weight: 700;
  font-family: 'Open Sans', sans-serif;
  color: var(--rmb-text);
  letter-spacing: .01em;
  line-height: 1.2;
}

.rmb-panel-desc {
  font-size: 12px;
  color: var(--rmb-muted);
  font-family: 'Open Sans', sans-serif;
  line-height: 1.5;
  margin-bottom: 20px;
  font-style: italic;
}

/* Sub-links */
.rmb-sub-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 4px;
}
.rmb-sub-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 400;
  font-family: 'Open Sans', sans-serif;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  transition: background .16s, color .16s, transform .16s;
  border-bottom: 1px solid var(--rmb-sep);
}
.rmb-sub-item:last-child { border-bottom: none; }
.rmb-sub-item:hover {
  background: var(--rmb-hover);
  color: var(--rmb-accent);
  transform: translateX(3px);
}
.rmb-sub-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--rmb-accent);
  flex-shrink: 0;
  opacity: .6;
}

/* "Xem thực đơn" link khi không có sub */
.rmb-panel-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Open Sans', sans-serif;
  color: var(--rmb-accent);
  text-decoration: none;
  transition: gap .18s;
}
.rmb-panel-link:hover { gap: 10px; }

/* Badge */
.rmb-badge {
  display: inline-flex; align-items: center;
  padding: 1px 6px;
  border-radius: 20px;
  font-size: 9px; font-weight: 700;
  font-family: 'Open Sans', sans-serif;
  letter-spacing: .07em; text-transform: uppercase;
  background: rgba(200,150,92,.2);
  color: var(--rmb-accent);
  border: 1px solid rgba(200,150,92,.3);
  line-height: 1.6; vertical-align: middle;
  white-space: nowrap;
}

/* ══ BODY NO-SCROLL ══════════════════════════════ */
body.rmb-no-scroll { overflow: hidden !important; }

/* ══ MOBILE ══════════════════════════════════════ */
@media (max-width: 600px) {
  .rmb-drawer {
    --rmb-drawer-w:   100vw;
    --rmb-sidebar-w:  120px;
  }
  .rmb-panel { padding: 28px 16px 24px; }
  .rmb-sidebar-logo { padding: 16px 12px 12px; }
}

@media (max-width: 380px) {
  .rmb-drawer { --rmb-sidebar-w: 100px; }
  .rmb-sitem-icon { font-size: 15px; }
  .rmb-sitem-name { font-size: 11px; }
}