/* smart21brain — Stationery OS app shell.
   Deliberately thin: almost everything here maps straight onto the
   variables and components already defined in css/style.css (--s21-*,
   .s21-card, .btn-s21, .s21-input) so the app matches the main site
   exactly and follows its light/dark mode automatically. Class names
   keep the stn- prefix used throughout js/stationery/*.js — only the
   values changed, not the API. */

.stn-app {
  min-height: 100vh;
  background: var(--s21-bg);
  color: var(--s21-text);
  font-family: var(--font-body);
}
.stn-app * { box-sizing: border-box; }
.stn-app a { color: inherit; text-decoration: none; }

.stn-app .text-soft { color: var(--s21-text-soft) !important; }
.stn-app .text-emerald { color: var(--s21-primary) !important; }
.stn-app .text-cyan { color: #2E86AB !important; }
.stn-app .text-amber { color: var(--s21-secondary-dark) !important; }
.stn-app .text-red { color: var(--s21-accent) !important; }

/* ---------------- Shell layout ---------------- */
.stn-shell { display: flex; height: 100vh; height: 100dvh; overflow: hidden; }

.stn-sidebar {
  width: 240px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--s21-white);
  border-right: 1px solid var(--s21-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 40;
  transition: transform .2s var(--ease), width .2s var(--ease);
}
.stn-sidebar-brand {
  display: flex; align-items: center; gap: .6rem;
  padding: 1.1rem 1.1rem;
  border-bottom: 1px solid var(--s21-border);
}
.stn-sidebar-brand .mark {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--s21-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: #fff; font-weight: 800;
  flex-shrink: 0;
}
.stn-sidebar-brand .name { font-family: var(--font-display); font-weight: 700; font-size: .98rem; line-height: 1.15; }
.stn-sidebar-brand .name small { display: block; font-weight: 600; font-size: .66rem; color: var(--s21-text-soft); letter-spacing: .03em; text-transform: uppercase; }

.stn-nav { flex: 1; overflow-y: auto; padding: .6rem .55rem; }
.stn-nav-group { margin-bottom: .3rem; }
.stn-nav-label { font-size: .66rem; text-transform: uppercase; letter-spacing: .06em; color: var(--s21-text-soft); padding: .8rem .55rem .3rem; font-weight: 700; }
.stn-nav-link {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem .65rem; border-radius: var(--radius-sm);
  font-size: .86rem; font-weight: 600; color: var(--s21-text-soft);
  cursor: pointer;
}
.stn-nav-link i { width: 16px; text-align: center; font-size: .88rem; }
.stn-nav-link:hover { background: var(--s21-primary-light); color: var(--s21-text); }
.stn-nav-link.active { background: var(--s21-primary-light); color: var(--s21-primary); }
.stn-nav-link .badge-dot {
  margin-left: auto; background: var(--s21-accent); color: #fff; font-size: .64rem;
  font-weight: 800; min-width: 17px; height: 17px; border-radius: 999px;
  display: flex; align-items: center; justify-content: center; padding: 0 .3rem;
}

.stn-sidebar-foot { padding: .75rem; border-top: 1px solid var(--s21-border); }
.stn-role-pill {
  display: inline-flex; align-items: center; gap: .3rem;
  background: var(--s21-primary-light); color: var(--s21-primary);
  font-size: .66rem; font-weight: 800; text-transform: uppercase; letter-spacing: .03em;
  padding: .2rem .5rem; border-radius: var(--radius-pill);
}

.stn-main { margin-left: 240px; flex: 1; min-width: 0; display: flex; flex-direction: column; height: 100%; transition: margin-left .2s var(--ease); }
.stn-topbar {
  flex-shrink: 0; z-index: 30;
  display: flex; align-items: center; gap: .7rem;
  padding: .8rem 1.1rem;
  background: var(--s21-white);
  border-bottom: 1px solid var(--s21-border);
}
.stn-topbar h1 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin: 0; }
.stn-topbar .stn-sub { font-size: .76rem; color: var(--s21-text-soft); }
.stn-menu-toggle { display: inline-flex; flex-shrink: 0; }

.stn-icon-btn {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  border: 1px solid var(--s21-border); background: var(--s21-white);
  color: var(--s21-text); display: inline-flex; align-items: center; justify-content: center;
  position: relative; cursor: pointer;
}
.stn-icon-btn:hover { border-color: var(--s21-primary); color: var(--s21-primary); }

.stn-content { padding: 1.1rem; flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; }

/* ---------------- Cards & primitives (mirror .s21-card / .btn-s21) ---------------- */
.stn-card {
  background: var(--s21-white);
  border: 1px solid var(--s21-border);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 1.15rem;
}
.stn-card-tight { padding: .85rem .95rem; }
.stn-card-head { display: flex; align-items: center; justify-content: space-between; gap: .7rem; margin-bottom: .8rem; }
.stn-card-head h2, .stn-card-head h3 { margin: 0; font-family: var(--font-display); font-size: .96rem; font-weight: 700; }

.stn-stat {
  background: var(--s21-white);
  border: 1px solid var(--s21-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
}
.stn-stat .label { font-size: .72rem; color: var(--s21-text-soft); font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.stn-stat .value { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; margin-top: .25rem; }

.stn-badge {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .7rem; font-weight: 700; padding: .2rem .5rem; border-radius: var(--radius-pill);
  border: 1px solid var(--s21-border);
  background: var(--s21-bg); color: var(--s21-text-soft);
}
.stn-badge.ok { background: var(--s21-primary-light); color: var(--s21-primary); border-color: transparent; }
.stn-badge.warn { background: var(--s21-secondary-tint); color: var(--s21-secondary-dark); border-color: transparent; }
.stn-badge.info { background: color-mix(in srgb, #2E86AB 16%, transparent); color: #2E86AB; border-color: transparent; }
.stn-badge.danger { background: var(--s21-accent-tint); color: var(--s21-accent); border-color: transparent; }

.stn-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  font-family: var(--font-body); font-weight: 700; font-size: .84rem; border-radius: var(--radius-pill);
  padding: .5rem .95rem; border: none; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.stn-btn:active { transform: translateY(1px); }
.stn-btn-primary { background: var(--s21-primary); color: #fff; box-shadow: 0 6px 16px color-mix(in srgb, var(--s21-primary) 28%, transparent); }
.stn-btn-primary:hover { background: var(--s21-primary-dark); color: #fff; }
.stn-btn-outline { background: transparent; border: 2px solid var(--s21-border); color: var(--s21-text); padding: calc(.5rem - 2px) calc(.95rem - 2px); }
.stn-btn-outline:hover { border-color: var(--s21-primary); color: var(--s21-primary); }
.stn-btn-ghost { background: var(--s21-bg); color: var(--s21-text); }
.stn-btn-ghost:hover { background: var(--s21-primary-light); color: var(--s21-primary); }
.stn-btn-danger { background: var(--s21-accent-tint); color: var(--s21-accent); }
.stn-btn-sm { padding: .35rem .7rem; font-size: .78rem; }
.stn-btn:disabled { opacity: .5; cursor: not-allowed; }

.stn-input, .stn-select, .stn-textarea {
  width: 100%; background: var(--s21-white); border: 1.5px solid var(--s21-border);
  color: var(--s21-text); border-radius: var(--radius-sm); padding: .5rem .7rem; font-size: .86rem;
  font-family: var(--font-body);
}
.stn-input:focus, .stn-select:focus, .stn-textarea:focus {
  outline: none; border-color: var(--s21-primary); box-shadow: 0 0 0 3px var(--s21-primary-light);
}
.stn-label { font-size: .74rem; font-weight: 700; color: var(--s21-text-soft); margin-bottom: .25rem; display: block; }
.stn-field { margin-bottom: .8rem; }

.stn-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.stn-table th {
  text-align: left; font-size: .68rem; text-transform: uppercase; letter-spacing: .04em;
  color: var(--s21-text-soft); padding: .5rem .65rem; border-bottom: 1px solid var(--s21-border);
  white-space: nowrap;
}
.stn-table td { padding: .6rem .65rem; border-bottom: 1px solid var(--s21-border); vertical-align: middle; }
.stn-table tr:last-child td { border-bottom: none; }
.stn-table tr:hover td { background: var(--s21-bg); }
.stn-table-wrap { overflow-x: auto; }

.stn-empty { text-align: center; padding: 2.2rem 1rem; color: var(--s21-text-soft); }
.stn-empty i { font-size: 1.6rem; margin-bottom: .5rem; display: block; color: var(--s21-primary); }

.stn-modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 18, .55); z-index: 100;
  display: flex; align-items: flex-start; justify-content: center; padding: 4vh 1rem; overflow-y: auto;
}
.stn-modal {
  background: var(--s21-white); border: 1px solid var(--s21-border);
  border-radius: var(--radius-lg); width: 100%; max-width: 540px;
  box-shadow: var(--card-shadow-hover);
}
.stn-modal.wide { max-width: 860px; }
.stn-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.15rem; border-bottom: 1px solid var(--s21-border); }
.stn-modal-body { padding: 1.15rem; max-height: 72vh; overflow-y: auto; }
.stn-modal-foot { padding: .9rem 1.15rem; border-top: 1px solid var(--s21-border); display: flex; justify-content: flex-end; gap: .5rem; }

.stn-toast-stack { position: fixed; bottom: 1.1rem; right: 1.1rem; z-index: 200; display: flex; flex-direction: column; gap: .5rem; max-width: 300px; }
.stn-toast {
  background: var(--s21-white); border: 1px solid var(--s21-border); border-left: 3px solid var(--s21-primary);
  border-radius: var(--radius-sm); padding: .65rem .85rem; font-size: .84rem; box-shadow: var(--card-shadow);
}
.stn-toast.error { border-left-color: var(--s21-accent); }
.stn-toast.warn { border-left-color: var(--s21-secondary-dark); }

.stn-tabs { display: flex; gap: .3rem; border-bottom: 1px solid var(--s21-border); margin-bottom: .9rem; flex-wrap: wrap; }
.stn-tab { padding: .45rem .8rem; font-size: .82rem; font-weight: 700; color: var(--s21-text-soft); border-bottom: 2px solid transparent; cursor: pointer; }
.stn-tab.active { color: var(--s21-primary); border-color: var(--s21-primary); }

.stn-grid { display: grid; gap: .9rem; }
.stn-grid-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.stn-grid-3 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.stn-grid-4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.stn-loading { display: flex; align-items: center; justify-content: center; padding: 2.5rem; color: var(--s21-text-soft); }
.stn-spin { width: 24px; height: 24px; border-radius: 50%; border: 3px solid var(--s21-border); border-top-color: var(--s21-primary); animation: stn-spin .7s linear infinite; }
@keyframes stn-spin { to { transform: rotate(360deg); } }

/* Receipt / print styles */
.stn-receipt { background: #fff; color: #1E2A24; border-radius: var(--radius-sm); padding: 1.1rem; font-size: .85rem; max-width: 320px; margin: 0 auto; font-family: 'Courier New', monospace; }
@media print {
  .stn-shell, .stn-main, .stn-content { height: auto !important; overflow: visible !important; }
  body * { visibility: hidden; }
  .stn-print-area, .stn-print-area * { visibility: visible; }
  .stn-print-area { position: absolute; top: 0; left: 0; width: 100%; }
}

/* Photo studio canvas */
.stn-photo-stage { background: var(--s21-bg); border-radius: var(--radius-md); border: 1px solid var(--s21-border); display: flex; align-items: center; justify-content: center; padding: 1rem; overflow: auto; }
.stn-photo-stage canvas { max-width: 100%; box-shadow: var(--card-shadow); }
.stn-swatch { width: 26px; height: 26px; border-radius: var(--radius-sm); border: 2px solid transparent; cursor: pointer; }
.stn-swatch.active { border-color: var(--s21-primary); }

/* Order board */
.stn-board { display: grid; grid-template-columns: repeat(4, minmax(220px, 1fr)); gap: .8rem; overflow-x: auto; }
.stn-board-col { background: var(--s21-bg); border: 1px solid var(--s21-border); border-radius: var(--radius-md); padding: .7rem; min-height: 110px; }
.stn-board-col-head { font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; color: var(--s21-text-soft); margin-bottom: .5rem; display: flex; justify-content: space-between; }
.stn-order-card { background: var(--s21-white); border: 1px solid var(--s21-border); border-radius: var(--radius-sm); padding: .6rem .7rem; margin-bottom: .5rem; cursor: pointer; }
.stn-order-card:hover { border-color: var(--s21-primary); }
.stn-order-card .no { font-family: var(--font-display); font-weight: 700; font-size: .8rem; }
.stn-order-card .meta { font-size: .72rem; color: var(--s21-text-soft); margin-top: .15rem; }

/* Chat */
.stn-chat-log { display: flex; flex-direction: column; gap: .6rem; max-height: 55vh; overflow-y: auto; padding: .2rem; }
.stn-chat-msg { max-width: 82%; padding: .55rem .8rem; border-radius: var(--radius-md); font-size: .86rem; line-height: 1.4; }
.stn-chat-msg.user { align-self: flex-end; background: var(--s21-primary); color: #fff; }
.stn-chat-msg.bot { align-self: flex-start; background: var(--s21-bg); border: 1px solid var(--s21-border); }

/* Checklist */
.stn-checklist-item { display: flex; align-items: center; gap: .55rem; padding: .45rem .15rem; border-bottom: 1px solid var(--s21-border); }
.stn-checklist-item:last-child { border-bottom: none; }
.stn-checklist-item.done .label { text-decoration: line-through; color: var(--s21-text-soft); }

/* ---------------- Mobile / tablet ---------------- */
.stn-sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 39; }
.stn-sidebar-backdrop.show { display: block; }
body.stn-lock { overflow: hidden; }

/* Icon rail (collapsed sidebar) — used on desktop when the hamburger is
   clicked, and always on phones/tablets until the hamburger expands it. */
.stn-sidebar.rail { width: 68px; }
.stn-sidebar.rail .stn-nav-label,
.stn-sidebar.rail .stn-sidebar-brand .name,
.stn-sidebar.rail .stn-nav-link > span:not(.badge-dot),
.stn-sidebar.rail .stn-sidebar-foot .stn-role-pill,
.stn-sidebar.rail .stn-sidebar-foot select,
.stn-sidebar.rail .stn-sidebar-foot .stn-back-text { display: none; }
.stn-sidebar.rail .stn-sidebar-brand { justify-content: center; padding: 1.1rem .4rem; }
.stn-sidebar.rail .stn-nav { padding: .5rem .4rem; overflow-x: hidden; }
.stn-sidebar.rail .stn-nav-group + .stn-nav-group { border-top: 1px solid var(--s21-border); margin-top: .3rem; padding-top: .3rem; }
.stn-sidebar.rail .stn-nav-link { justify-content: center; padding: .65rem 0; position: relative; }
.stn-sidebar.rail .stn-nav-link i { font-size: 1.05rem; width: auto; }
.stn-sidebar.rail .stn-nav-link .badge-dot { position: absolute; top: 2px; right: 6px; margin: 0; min-width: 15px; height: 15px; font-size: .58rem; }
.stn-sidebar.rail .stn-sidebar-foot { padding: .6rem .4rem; text-align: center; }
.stn-sidebar.rail .stn-sidebar-foot .stn-btn { padding-left: 0; padding-right: 0; }
.stn-app.stn-desk-collapsed .stn-main { margin-left: 68px; }

/* Tablet & below: sidebar is a permanent icon rail; hamburger expands it
   as an overlay drawer over the page. */
@media (max-width: 991px) {
  .stn-sidebar {
    width: min(285px, 86vw);
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    overscroll-behavior: contain;
  }
  .stn-sidebar.rail { width: 60px; }
  .stn-sidebar.open { box-shadow: var(--card-shadow-hover); }
  .stn-main, .stn-app.stn-desk-collapsed .stn-main { margin-left: 60px; }
  .stn-menu-toggle { display: inline-flex; flex-shrink: 0; }
  .stn-nav-link { padding: .7rem .75rem; font-size: .92rem; }
  .stn-sidebar.rail .stn-nav-link { padding: .7rem 0; }

  /* Two-column layouts set inline by modules (POS, dashboard, photo studio,
     reports, security, Chopa AI) stack into one column. */
  .stn-grid[style*="grid-template-columns"] { grid-template-columns: minmax(0, 1fr) !important; }

  /* Order board: swipeable columns instead of one very long page */
  .stn-board {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(250px, 78%);
    overflow-x: auto;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    padding-bottom: .4rem;
  }
  .stn-board-col { scroll-snap-align: start; }
}

/* Phones */
@media (max-width: 640px) {
  .stn-topbar {
    padding: .6rem .75rem;
    padding-top: calc(.6rem + env(safe-area-inset-top, 0px));
    gap: .5rem;
  }
  .stn-topbar > div:not(.ms-auto) { min-width: 0; flex: 1 1 auto; }
  .stn-topbar h1 { font-size: .95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .stn-topbar .stn-sub { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .stn-topbar .ms-auto { gap: .35rem !important; flex-shrink: 0; }
  #stnLangToggleLabel { display: none; }          /* icon-only language button */

  .stn-content {
    padding: .75rem;
    padding-left: calc(.75rem + env(safe-area-inset-left, 0px));
    padding-right: calc(.75rem + env(safe-area-inset-right, 0px));
    padding-bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
  }
  .stn-card { padding: .9rem; }
  .stn-card-head { flex-wrap: wrap; }
  .stn-stat { padding: .8rem .85rem; }
  .stn-stat .value { font-size: 1.15rem; }

  /* Comfortable tap targets; 16px inputs stop iOS Safari zooming on focus */
  .stn-icon-btn { width: 40px; height: 40px; }
  .stn-btn { min-height: 40px; }
  .stn-btn-sm { min-height: 36px; }
  .stn-input, .stn-select, .stn-textarea { font-size: 16px; padding: .6rem .7rem; }
  .stn-app input[type="checkbox"], .stn-app input[type="radio"] { width: 18px; height: 18px; }

  /* Toolbars: search boxes / filters go full-width instead of squeezing */
  .stn-app .stn-input[style*="max-width"],
  .stn-app .stn-select[style*="max-width"] { max-width: 100% !important; flex: 1 1 100%; }
  .stn-app .stn-card > .d-flex.flex-wrap > .stn-btn,
  .stn-app .stn-card > .d-flex.flex-wrap > a.stn-btn { flex: 1 1 auto; }

  /* Tabs scroll sideways on one line */
  .stn-tabs { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .stn-tabs::-webkit-scrollbar { display: none; }
  .stn-tab { white-space: nowrap; flex-shrink: 0; padding: .55rem .8rem; }

  /* Card grids: two-up where they fit, one-up otherwise */
  .stn-grid-2 { grid-template-columns: minmax(0, 1fr); }
  .stn-grid-3 { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
  .stn-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stn-grid { gap: .7rem; }

  /* Tables scroll inside their card rather than breaking the page */
  .stn-table-wrap { -webkit-overflow-scrolling: touch; margin: 0 -.2rem; }
  .stn-table { min-width: 520px; font-size: .82rem; }
  .stn-table th, .stn-table td { padding: .55rem .5rem; }

  /* Modals become near-full-screen sheets */
  .stn-modal-backdrop { padding: 0; align-items: flex-end; }
  .stn-modal, .stn-modal.wide {
    max-width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 94vh; display: flex; flex-direction: column;
  }
  .stn-modal-body { max-height: none; flex: 1 1 auto; -webkit-overflow-scrolling: touch; }
  .stn-modal-foot {
    flex-wrap: wrap;
    padding-bottom: calc(.9rem + env(safe-area-inset-bottom, 0px));
  }
  .stn-modal-foot .stn-btn { flex: 1 1 auto; }

  .stn-toast-stack {
    left: .75rem; right: .75rem; max-width: none;
    bottom: calc(.75rem + env(safe-area-inset-bottom, 0px));
  }

  .stn-chat-msg { max-width: 92%; }
  .stn-chat-log { max-height: 50vh; }
  .stn-photo-stage { padding: .5rem; }
  .stn-swatch { width: 34px; height: 34px; }
  .stn-receipt { max-width: 100%; }
}

@media (max-width: 380px) {
  .stn-grid-4 { grid-template-columns: minmax(0, 1fr); }
  .stn-grid-3 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------------- Pinned top bar ----------------
   The top bar is fixed to the viewport and the page itself never scrolls;
   only .stn-content scrolls underneath it, so the bar cannot move. */
html:has(body.stn-app), body.stn-app {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}
.stn-app {
  --stn-topbar-h: calc(58px + env(safe-area-inset-top, 0px));
  --stn-side-w: 240px;
}
.stn-app.stn-desk-collapsed { --stn-side-w: 68px; }
.stn-app .stn-topbar {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--stn-side-w);
  height: var(--stn-topbar-h);
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: 0;
  box-sizing: border-box;
  z-index: 45;
  transform: none;
  transition: left .2s var(--ease);
}
.stn-app .stn-main { padding-top: var(--stn-topbar-h); }
@media (max-width: 991px) {
  .stn-app, .stn-app.stn-desk-collapsed { --stn-side-w: 60px; }
}
@media print { .stn-app .stn-topbar { display: none; } .stn-app .stn-main { padding-top: 0; } }