/* ============================================================
   NISARG HOTEL — QR Table Ordering App
   Unified dark charcoal & brass identity (matches main site),
   "kitchen ticket" motifs, app-like on mobile, full desktop
   layout with a persistent order sidebar on larger screens.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Marcellus&family=Karla:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --charcoal: #0F0C0A;
  --charcoal-deep: #080605;
  --panel: #1C1712;
  --panel-2: #241D17;
  --line: rgba(226,182,94,0.14);

  --moss-dark: #F3ECDD;
  --moss-soft: rgba(243,236,221,0.65);
  --limestone: #F3ECDD;
  --limestone-dim: #E6DABF;

  --brass: #C99A3E;
  --brass-light: #EFC978;
  --brick: #C1512D;
  --brick-dark: #9C3F22;
  --veg: #4CAF50;
  --ink: #F3ECDD;
  --paper: #1C1712;
  --paper-2: #241D17;

  --font-display: 'Marcellus', serif;
  --font-body: 'Karla', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 14px;
  --shadow-soft: 0 10px 30px rgba(0,0,0,0.4);
  --shadow-deep: 0 -14px 44px rgba(0,0,0,0.55);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --ease: cubic-bezier(.19,1,.22,1);
  --sidebar-w: 420px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
::selection { background: rgba(226,182,94,0.32); color: var(--limestone); }

body {
  font-family: var(--font-body);
  background-color: var(--charcoal);
  background-image:
    radial-gradient(circle at 8% 6%, rgba(226,182,94,0.14), transparent 42%),
    radial-gradient(circle at 92% 22%, rgba(193,81,45,0.12), transparent 46%),
    radial-gradient(circle at 50% 100%, rgba(226,182,94,0.07), transparent 55%),
    radial-gradient(circle at 1px 1px, rgba(226,182,94,0.05) 1px, transparent 0);
  background-repeat: no-repeat, no-repeat, no-repeat, repeat;
  background-size: auto, auto, auto, 26px 26px;
  background-attachment: fixed, fixed, fixed, scroll;
  color: var(--ink);
  line-height: 1.5;
  max-width: 560px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
}
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

/* ---------- App bar ---------- */
.app-bar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  padding: 18px 20px 16px;
  background: rgba(15,12,10,0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  border-bottom: 1px solid var(--line);
}
.back-btn {
  flex: 0 0 auto; width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; border: 1px solid rgba(226,182,94,0.25);
  background: rgba(226,182,94,0.06); color: var(--limestone);
  transition: background 0.25s ease, transform 0.25s ease;
}
.back-btn:hover { background: rgba(226,182,94,0.16); }
.back-btn:active { transform: scale(0.92); }
.app-bar-brand { display: flex; flex-direction: column; line-height: 1; flex: 1; min-width: 0; }
.app-bar-brand .brand-name { font-family: var(--font-display); font-size: 1.45rem; color: var(--limestone); }
.app-bar-brand .brand-sub { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.2em; color: var(--brass-light); margin-top: 5px; }
.table-chip {
  display: flex; align-items: center; gap: 8px;
  background: rgba(226,182,94,0.08); border: 1px solid rgba(226,182,94,0.3);
  padding: 8px 14px; border-radius: 30px;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--limestone); letter-spacing: 0.03em;
}
.table-chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brass-light); box-shadow: 0 0 0 3px rgba(226,182,94,0.2); }

/* ---------- Search ---------- */
.search-bar {
  display: flex; align-items: center; gap: 10px;
  margin: 18px 20px 0;
  background: var(--panel);
  border: 1.5px solid var(--line);
  border-radius: 12px; padding: 13px 15px;
  color: var(--moss-soft); box-shadow: var(--shadow-soft);
  transition: border-color 0.25s ease;
}
.search-bar:focus-within { border-color: rgba(226,182,94,0.5); }
.search-bar input { border: none; outline: none; background: transparent; width: 100%; font-size: 0.94rem; color: var(--ink); }
.search-bar input::placeholder { color: rgba(243,236,221,0.35); }

/* ---------- Veg / Non-veg segment ---------- */
.veg-seg { display: flex; gap: 8px; margin: 16px 20px 0; }
.seg-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  border: 1.5px solid rgba(226,182,94,0.3); background: rgba(226,182,94,0.03);
  color: var(--limestone); font-weight: 700; font-size: 0.82rem;
  padding: 11px 8px; border-radius: 30px; transition: 0.25s var(--ease);
}
.seg-btn.active { background: linear-gradient(160deg, var(--brass-light), var(--brass)); border-color: var(--brass); color: var(--charcoal-deep); }
.mini-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; border: 1.5px solid currentColor; }
.mini-dot.veg { background: var(--veg); border-color: var(--veg); }
.mini-dot.nonveg { background: var(--brick); border-color: var(--brick); }
.seg-btn.active .mini-dot.veg { background: #1E5E20; border-color: #1E5E20; }
.seg-btn.active .mini-dot.nonveg { background: #6E2C1F; border-color: #6E2C1F; }

/* ---------- Category chip scroller ---------- */
.cat-scroll { display: flex; gap: 10px; overflow-x: auto; padding: 18px 20px 6px; scrollbar-width: none; }
.cat-scroll::-webkit-scrollbar { display: none; }
.cat-chip {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 0.76rem; padding: 10px 17px;
  border-radius: 30px; border: 1.5px solid rgba(226,182,94,0.35);
  color: var(--brass-light); background: rgba(226,182,94,0.05);
  white-space: nowrap; transition: 0.25s var(--ease);
}
.cat-chip.active { background: linear-gradient(160deg, var(--brass-light), var(--brass)); color: var(--charcoal-deep); border-color: var(--brass); }
.chip-icon { font-size: 0.9rem; line-height: 1; }

/* ---------- Menu body ---------- */
.menu-body { padding: 8px 20px 150px; }
.menu-section { margin-top: 28px; }
.menu-section-title { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 1.25rem; color: var(--limestone); margin-bottom: 4px; }
.menu-section-title::after { content: ''; flex: 1; height: 1px; background: repeating-linear-gradient(90deg, var(--brass) 0 6px, transparent 6px 11px); opacity: 0.5; }
.menu-section-count { font-family: var(--font-mono); font-size: 0.7rem; color: var(--moss-soft); opacity: 0.8; }
.section-icon { font-size: 1.1rem; line-height: 1; }

/* ---------- Dish card ---------- */
.dish-card {
  display: flex; gap: 14px;
  background: linear-gradient(165deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 17px; margin-top: 12px; box-shadow: var(--shadow-soft);
  position: relative; transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.dish-card:hover { transform: translateY(-2px); border-color: rgba(226,182,94,0.3); }
.dish-card.in-cart { border-color: rgba(226,182,94,0.45); box-shadow: 0 0 0 1.5px rgba(226,182,94,0.16), var(--shadow-soft); }
.dish-main { flex: 1; min-width: 0; }
.dish-top-row { display: flex; align-items: flex-start; gap: 8px; }
.dish-name { font-family: var(--font-display); font-size: 1.06rem; color: var(--limestone); display: flex; align-items: center; gap: 8px; }
.veg-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; display: inline-block; }
.veg-dot.veg { background: var(--veg); box-shadow: 0 0 0 2px rgba(76,175,80,0.2); }
.veg-dot.nonveg { background: var(--brick); box-shadow: 0 0 0 2px rgba(193,81,45,0.2); }
.dish-desc { font-size: 0.82rem; color: var(--moss-soft); margin-top: 4px; }
.dish-bottom-row { display: flex; align-items: center; justify-content: space-between; margin-top: 13px; }
.dish-price { font-family: var(--font-mono); font-weight: 700; color: var(--brass-light); font-size: 0.98rem; }

/* Add / stepper control */
.qty-control { display: flex; align-items: center; }
.add-btn {
  border: 1.5px solid var(--brass); color: var(--brass-light);
  background: rgba(226,182,94,0.08); font-family: var(--font-mono); font-weight: 700;
  font-size: 0.76rem; letter-spacing: 0.05em; padding: 9px 19px; border-radius: 8px;
  text-transform: uppercase; transition: 0.2s ease;
}
.add-btn:hover { background: var(--brass); color: var(--charcoal-deep); }
.add-btn:active { transform: scale(0.95); }
.stepper { display: flex; align-items: center; gap: 0; border: 1.5px solid var(--brass); border-radius: 8px; overflow: hidden; background: var(--brass); }
.stepper button { width: 30px; height: 30px; border: none; background: var(--brass); color: var(--charcoal-deep); font-size: 1.05rem; font-weight: 700; line-height: 1; display: flex; align-items: center; justify-content: center; }
.stepper button:hover { background: var(--brass-light); }
.stepper button:active { background: var(--brass-dim, #9C7328); }
.stepper .qty-num { min-width: 27px; text-align: center; background: var(--panel); color: var(--limestone); height: 30px; display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-weight: 700; font-size: 0.88rem; }

.menu-empty { text-align: center; color: var(--moss-soft); font-family: var(--font-mono); font-size: 0.85rem; padding: 64px 20px; }
.menu-disclaimer { text-align: center; font-size: 0.76rem; color: var(--moss-soft); padding: 4px 20px 30px; opacity: 0.75; }
.admin-link { display: block; text-align: center; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.05em; color: var(--moss-soft); opacity: 0.55; padding: 0 20px 130px; transition: opacity 0.2s ease; }
.admin-link:hover { opacity: 0.9; color: var(--brass-light); }

/* ---------- Floating cart bar ---------- */
.cart-bar {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(18px + var(--safe-bottom)); z-index: 60;
  width: min(calc(100% - 40px), 480px);
  display: flex; align-items: center; gap: 12px;
  background: linear-gradient(160deg, var(--panel-2), var(--charcoal-deep));
  color: var(--limestone); border-radius: 16px; padding: 15px 19px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.55), 0 0 0 1px rgba(226,182,94,0.2);
  border: none; animation: slideUp 0.35s var(--ease);
}
@keyframes slideUp { from { opacity: 0; transform: translate(-50%, 18px); } to { opacity: 1; transform: translate(-50%, 0); } }
.cart-bar-count {
  background: linear-gradient(160deg, var(--brass-light), var(--brass)); color: var(--charcoal-deep);
  font-family: var(--font-mono); font-weight: 700; font-size: 0.85rem;
  width: 27px; height: 27px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.cart-bar-label { flex: 1; text-align: left; font-weight: 700; font-size: 0.92rem; }
.cart-bar-total { font-family: var(--font-mono); font-weight: 700; color: var(--brass-light); font-size: 0.95rem; }

/* ---------- Cart sheet (order ticket) ---------- */
.sheet-overlay { position: fixed; inset: 0; background: rgba(5,4,3,0.65); backdrop-filter: blur(2px); opacity: 0; pointer-events: none; transition: opacity 0.35s ease; z-index: 70; }
.sheet-overlay.open { opacity: 1; pointer-events: auto; }

.cart-sheet {
  position: fixed; left: 50%; transform: translate(-50%, 100%); bottom: 0; z-index: 80;
  width: min(100%, 560px); max-height: 86vh;
  background: linear-gradient(180deg, var(--panel) 0%, var(--charcoal-deep) 100%);
  border: 1px solid var(--line); border-bottom: none;
  border-radius: 24px 24px 0 0; box-shadow: var(--shadow-deep);
  padding: 10px 22px calc(22px + var(--safe-bottom)); overflow-y: auto;
  transition: transform 0.4s cubic-bezier(.32,.72,0,1);
}
.cart-sheet.open { transform: translate(-50%, 0); }
.sheet-handle { width: 44px; height: 4px; background: rgba(226,182,94,0.3); border-radius: 4px; margin: 8px auto 16px; }
.sheet-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.sheet-head h3 { font-family: var(--font-display); font-size: 1.35rem; color: var(--limestone); font-weight: 400; }
.sheet-close { border: 1px solid var(--line); background: rgba(226,182,94,0.06); width: 34px; height: 34px; border-radius: 50%; font-size: 1.3rem; color: var(--limestone); line-height: 1; transition: background 0.2s ease; }
.sheet-close:hover { background: rgba(226,182,94,0.16); }

.ticket-items { margin-top: 16px; display: flex; flex-direction: column; gap: 14px; }
.ticket-empty { text-align: center; padding: 44px 10px; color: var(--moss-soft); }
.ticket-empty span { font-size: 2rem; display: block; margin-bottom: 10px; }
.ticket-empty p { font-size: 0.88rem; }

.ticket-row { display: flex; align-items: center; gap: 12px; }
.ticket-row .t-name { flex: 1; min-width: 0; }
.ticket-row .t-name .nm { font-weight: 700; font-size: 0.92rem; display: flex; align-items: center; gap: 7px; color: var(--limestone); }
.ticket-row .t-name .unit { font-family: var(--font-mono); font-size: 0.74rem; color: var(--moss-soft); margin-top: 3px; }
.ticket-row .t-line-total { font-family: var(--font-mono); font-weight: 700; color: var(--brass-light); font-size: 0.88rem; min-width: 58px; text-align: right; }

.ticket-divider { height: 1px; margin: 20px 0; background: repeating-linear-gradient(90deg, rgba(226,182,94,0.3) 0 7px, transparent 7px 13px); }

.sheet-fields { display: flex; flex-direction: column; gap: 15px; margin-bottom: 6px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.76rem; font-family: var(--font-mono); color: var(--moss-soft); letter-spacing: 0.02em; }
.form-group label .req { color: var(--brick); font-weight: 700; }
.form-group label .opt { color: var(--moss-soft); opacity: 0.7; font-style: italic; text-transform: none; letter-spacing: 0; }
.form-group input, .form-group textarea {
  padding: 13px 15px; border-radius: 10px; border: 1.5px solid var(--line);
  background: var(--charcoal-deep); color: var(--limestone); font-size: 0.92rem; resize: none;
  transition: border-color 0.25s ease;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(243,236,221,0.32); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--brass); }
.form-group input.invalid { border-color: var(--brick); }
.field-error { color: #E0705A; font-size: 0.78rem; margin-top: -6px; font-weight: 600; }

@media (max-width: 380px) { .form-row-2 { grid-template-columns: 1fr; } }

.ticket-total-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px; padding-top: 16px; border-top: 1.5px dashed var(--line);
  font-family: var(--font-display); font-size: 1.12rem; color: var(--limestone);
}
.ticket-total-row strong { font-family: var(--font-mono); color: var(--brass-light); }

.place-order-btn {
  width: 100%; margin-top: 18px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: linear-gradient(160deg, #2CB868, #1E8449);
  color: #fff; border: none; border-radius: 12px;
  padding: 17px; font-weight: 800; font-size: 0.98rem;
  box-shadow: 0 12px 28px rgba(30,132,73,0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.place-order-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(30,132,73,0.45); }
.place-order-btn:active { transform: translateY(1px); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; top: 20px; transform: translate(-50%, -160%);
  background: linear-gradient(160deg, var(--panel-2), var(--charcoal-deep));
  border: 1px solid rgba(226,182,94,0.3);
  color: var(--limestone); font-size: 0.84rem; font-weight: 600;
  padding: 13px 22px; border-radius: 30px; box-shadow: var(--shadow-soft);
  z-index: 100; transition: transform 0.35s var(--ease); white-space: nowrap;
}
.toast.show { transform: translate(-50%, 0); }

/* ============================================================
   RESPONSIVE — tablet niceties
   ============================================================ */
@media (min-width: 560px) and (max-width: 999px) {
  body { border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
}

/* ============================================================
   RESPONSIVE — full desktop layout
   Menu column + persistent order sidebar, like a premium
   ordering console rather than a stretched phone screen.
   ============================================================ */
@media (min-width: 1000px) {
  body {
    max-width: none;
    width: 100%;
    padding-right: var(--sidebar-w);
    border: none;
  }
  .order-app { max-width: 760px; margin: 0 auto; }
  .app-bar { padding: 24px 0 20px; background: transparent; backdrop-filter: none; box-shadow: none; border-bottom: 1px solid var(--line); position: relative; top: auto; }
  .app-bar-brand .brand-name { font-size: 1.7rem; }
  .search-bar, .veg-seg, .cat-scroll, .menu-body { margin-left: 0; margin-right: 0; padding-left: 0; padding-right: 0; }
  .menu-body { padding-bottom: 80px; }
  .menu-section-title { font-size: 1.4rem; }
  .dish-card { padding: 20px; }

  /* Cart becomes a persistent right-hand sidebar */
  .cart-bar { display: none; }
  .sheet-overlay { display: none; }
  .cart-sheet {
    position: fixed; top: 0; right: 0; left: auto; bottom: 0;
    transform: none !important;
    width: var(--sidebar-w); max-height: none; height: 100vh;
    border-radius: 0; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line);
    box-shadow: -20px 0 50px rgba(0,0,0,0.45);
    display: flex; flex-direction: column;
    padding: 28px 26px calc(26px + var(--safe-bottom));
  }
  .sheet-handle { display: none; }
  .sheet-close { display: none; }
  .sheet-head h3 { font-size: 1.5rem; }
  .ticket-items { flex: 1; overflow-y: auto; }
  .ticket-empty { margin: auto 0; }
  .admin-link { padding-bottom: 40px; }
}

@media (min-width: 1240px) {
  :root { --sidebar-w: 460px; }
  .order-app { max-width: 860px; }
}