:root {
  /* Sterling Restaurants brand palette */
  --brand: #3E7CC4;          /* Sterling blue */
  --brand-dk: #2D5E9E;
  --brand-lt: #E8F0FA;
  --charcoal: #3A3F44;
  --charcoal-dk: #2D3338;
  --silver: #C0C5CC;

  /* App surfaces */
  --bg: #F4F6F9;
  --panel: #FFFFFF;
  --panel-2: #F7F9FC;
  --border: #DDE3EA;
  --border-dk: #C8D1DB;
  --text: #2D3338;
  --muted: #6A737D;

  /* Status */
  --ok: #2E8B57;
  --warn: #D49A1A;
  --caution: #E07B2C;
  --danger: #C9453E;
  --info: #3E7CC4;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}
.hidden { display: none !important; }

/* Header */
.app-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(45,51,56,0.04);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo-img {
  height: 46px; width: auto;
  display: block;
}
.app-header h1 {
  margin: 0;
  font-size: 18px;
  color: var(--charcoal-dk);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.subtitle { color: var(--muted); font-size: 12px; }

.tabs { display: flex; gap: 2px; }
.tab {
  background: transparent; color: var(--muted); border: none;
  padding: 8px 16px; border-radius: 6px; cursor: pointer;
  font-size: 13px; font-weight: 500;
  transition: background 0.12s, color 0.12s;
}
.tab:hover { background: var(--brand-lt); color: var(--brand-dk); }
.tab.active { background: var(--brand); color: #fff; }
.badge {
  display: inline-block; background: var(--danger); color: #fff;
  border-radius: 10px; padding: 1px 7px; font-size: 11px; margin-left: 4px;
  font-weight: 600;
}
.tab.active .badge { background: rgba(255,255,255,0.25); }

.toolbar { display: flex; gap: 8px; }
.btn {
  background: var(--panel); color: var(--text); border: 1px solid var(--border-dk);
  padding: 8px 14px; border-radius: 6px; cursor: pointer; font-size: 13px;
  font-weight: 500; transition: background 0.12s, border-color 0.12s;
}
.btn:hover { background: var(--panel-2); border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dk); border-color: var(--brand-dk); }
.btn.ghost { background: transparent; border-color: var(--border); }
.btn.ghost:hover { background: var(--panel-2); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.danger:hover { background: #a8362f; border-color: #a8362f; }

/* Main */
main { padding: 22px 24px 40px; max-width: 1600px; margin: 0 auto; }
.view { display: block; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(45,51,56,0.04);
}
.card h3 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--charcoal-dk);
  font-weight: 600;
}
.muted { color: var(--muted); font-size: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .grid2 { grid-template-columns: 1fr; } }

/* KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px; margin-bottom: 16px;
}
@media (max-width: 1100px) { .kpi-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
.kpi {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px;
  border-left: 4px solid var(--brand);
  box-shadow: 0 1px 2px rgba(45,51,56,0.04);
}
.kpi.danger { border-left-color: var(--danger); }
.kpi.warn   { border-left-color: var(--warn); }
.kpi.caution { border-left-color: var(--caution); }
.kpi.ok     { border-left-color: var(--ok); }
.kpi-label {
  color: var(--muted); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600;
}
.kpi-value {
  font-size: 30px; font-weight: 700;
  margin-top: 6px;
  color: var(--charcoal-dk);
  line-height: 1;
}

/* Filter bar */
.filter-bar {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  margin-bottom: 14px;
}
.filter-bar input, .filter-bar select {
  background: var(--panel); color: var(--text); border: 1px solid var(--border-dk);
  padding: 8px 11px; border-radius: 6px; font-size: 13px; font-family: inherit;
}
.filter-bar input:focus, .filter-bar select:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-lt);
}
.filter-bar input { min-width: 260px; }
.grow { flex: 1; }

/* Table */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th {
  text-align: left; color: var(--charcoal); font-weight: 600;
  padding: 10px 10px; border-bottom: 2px solid var(--border-dk);
  cursor: pointer; white-space: nowrap; user-select: none;
  background: var(--panel-2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.data th:first-child { border-top-left-radius: 6px; }
table.data th:last-child { border-top-right-radius: 6px; }
table.data th:hover { color: var(--brand-dk); }
table.data td {
  padding: 11px 10px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
table.data tr:hover td { background: var(--brand-lt); cursor: pointer; }

.pill {
  display: inline-block; padding: 3px 9px; border-radius: 11px;
  font-size: 11px; font-weight: 600;
  background: var(--panel-2); border: 1px solid var(--border-dk);
  color: var(--charcoal);
}
.pill.ok { background: #E5F4EC; border-color: #B8DEC8; color: #1F6A41; }
.pill.warn { background: #FCF3DC; border-color: #ECD58E; color: #8B6A0E; }
.pill.caution { background: #FCEAD8; border-color: #F2C28B; color: #9B541A; }
.pill.danger { background: #FAE2E1; border-color: #ECB4B0; color: #8E2C26; }
.pill.info { background: var(--brand-lt); border-color: #B5CFEB; color: var(--brand-dk); }

.doc-count {
  display: inline-block; font-size: 11px; color: var(--brand-dk);
  background: var(--brand-lt); padding: 3px 9px; border-radius: 11px;
  font-weight: 600;
}

/* List / reminder cards */
.list { display: flex; flex-direction: column; gap: 8px; }
.item {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px; cursor: pointer;
  display: grid; grid-template-columns: 4px 1fr auto; gap: 12px; align-items: center;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.item:hover {
  border-color: var(--brand);
  box-shadow: 0 2px 6px rgba(62,124,196,0.12);
}
.item .stripe { width: 4px; align-self: stretch; border-radius: 2px; background: var(--border-dk); }
.item.expired .stripe { background: var(--danger); }
.item.warn .stripe { background: var(--warn); }
.item.caution .stripe { background: var(--caution); }
.item.ok .stripe { background: var(--ok); }
.item .title { font-weight: 600; color: var(--charcoal-dk); }
.item .meta { color: var(--muted); font-size: 12px; margin-top: 3px; }
.item .right { text-align: right; font-size: 12px; color: var(--muted); }
.item .right .date { color: var(--charcoal-dk); font-weight: 600; }

/* Bar chart */
.bar-chart { display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 140px 1fr 40px; gap: 10px; align-items: center; font-size: 12px; }
.bar-row .label { color: var(--charcoal); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 500; }
.bar-row .bar {
  height: 18px; background: var(--panel-2); border-radius: 4px; overflow: hidden;
  border: 1px solid var(--border);
}
.bar-row .bar .fill {
  height: 100%; background: linear-gradient(90deg, var(--brand) 0%, var(--brand-dk) 100%);
  border-radius: 3px;
}
.bar-row .val { text-align: right; font-weight: 600; color: var(--charcoal-dk); }

/* Store grid */
.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.store-card {
  background: var(--panel); border: 1px solid var(--border);
  padding: 14px 16px; border-radius: 10px; cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
  box-shadow: 0 1px 2px rgba(45,51,56,0.04);
}
.store-card:hover {
  border-color: var(--brand);
  box-shadow: 0 4px 12px rgba(62,124,196,0.15);
}
.store-card h4 { margin: 0 0 6px; font-size: 14px; color: var(--charcoal-dk); font-weight: 600; }
.store-card .addr { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.store-card .stats { display: flex; gap: 6px; flex-wrap: wrap; font-size: 11px; }

/* Modal */
.modal {
  position: fixed; inset: 0; background: rgba(45,51,56,0.5);
  display: grid; place-items: center; z-index: 100; padding: 20px;
  backdrop-filter: blur(2px);
}
.modal-content {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; max-width: 900px; width: 100%;
  max-height: 90vh; overflow-y: auto; position: relative;
  padding: 26px 28px;
  box-shadow: 0 10px 40px rgba(45,51,56,0.2);
}
.modal-close {
  position: absolute; top: 10px; right: 14px;
  background: none; border: none; color: var(--muted);
  font-size: 28px; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--charcoal-dk); }

.detail-header {
  display: flex; justify-content: space-between; align-items: start;
  margin-bottom: 18px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.detail-header h2 { margin: 0 0 4px; font-size: 21px; color: var(--charcoal-dk); font-weight: 700; }
.detail-header .sub { color: var(--muted); font-size: 13px; }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px; }
@media (max-width: 700px) { .detail-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label {
  color: var(--muted); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.05em;
  font-weight: 600;
}
.field input, .field select, .field textarea {
  background: var(--panel); color: var(--text); border: 1px solid var(--border-dk);
  padding: 8px 11px; border-radius: 6px; font-size: 13px; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-lt);
}
.field textarea { min-height: 60px; resize: vertical; }

.section-hdr {
  margin: 22px 0 12px; font-size: 12px;
  text-transform: uppercase; color: var(--brand-dk);
  letter-spacing: 0.08em; font-weight: 700;
  border-top: 1px solid var(--border); padding-top: 16px;
}

.attach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.attach {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px; text-align: center; font-size: 11px; position: relative;
}
.attach:hover { border-color: var(--brand); }
.attach img { width: 100%; height: 90px; object-fit: cover; border-radius: 4px; }
.attach .ficon { font-size: 36px; display: block; margin: 18px 0; color: var(--brand); }
.attach .fname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--charcoal-dk); font-weight: 500; }
.attach .frm {
  position: absolute; top: 4px; right: 4px;
  background: rgba(45,51,56,0.7); border: none; color: #fff;
  border-radius: 4px; width: 22px; height: 22px;
  cursor: pointer; font-size: 14px;
}
.attach .frm:hover { background: var(--danger); }
.upload-box {
  border: 2px dashed var(--border-dk); border-radius: 8px;
  padding: 28px; text-align: center; color: var(--muted);
  cursor: pointer; transition: border-color 0.15s, background 0.15s;
  background: var(--panel-2);
}
.upload-box:hover, .upload-box.drag {
  border-color: var(--brand); color: var(--brand-dk);
  background: var(--brand-lt);
}

.modal-actions {
  display: flex; gap: 8px; align-items: center;
  margin-top: 22px; border-top: 1px solid var(--border); padding-top: 16px;
}

/* Empty state */
.empty { display: grid; place-items: center; padding: 80px 20px; }
.empty-card {
  background: var(--panel); border: 1px solid var(--border);
  padding: 40px; border-radius: 12px; max-width: 500px; text-align: center;
  box-shadow: 0 2px 10px rgba(45,51,56,0.06);
}
.empty-card h2 { margin: 0 0 8px; color: var(--charcoal-dk); }
.dropzone {
  margin-top: 20px; border: 2px dashed var(--border-dk); border-radius: 8px;
  padding: 40px; color: var(--muted); cursor: pointer;
  background: var(--panel-2);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--brand); color: var(--brand-dk);
  background: var(--brand-lt);
}

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--charcoal-dk); color: #fff;
  padding: 11px 20px; border-radius: 8px; z-index: 200;
  box-shadow: 0 4px 20px rgba(45,51,56,0.3);
  font-size: 13px; font-weight: 500;
}

.reminder-toolbar {
  display: flex; gap: 16px; align-items: center;
  margin-bottom: 12px; font-size: 13px; color: var(--muted);
}
.reminder-toolbar select {
  background: var(--panel); color: var(--text); border: 1px solid var(--border-dk);
  padding: 6px 10px; border-radius: 6px;
}

.history-row {
  display: flex; justify-content: space-between; padding: 9px 11px;
  border-bottom: 1px solid var(--border); font-size: 12px;
  background: var(--panel-2); border-radius: 4px; margin-bottom: 4px;
}
.history-row:last-child { border-bottom: none; }

/* User badge / sign-in */
.user-badge {
  position: relative;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--brand); color: #fff;
  display: grid; place-items: center;
  font-weight: 600; font-size: 13px; cursor: pointer;
  user-select: none;
}
.user-badge:hover { background: var(--brand-dk); }
.user-menu {
  position: absolute; top: 44px; right: 0;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px; min-width: 220px;
  box-shadow: 0 4px 16px rgba(45,51,56,0.15);
  z-index: 50;
  cursor: default;
}
.user-info { margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.user-info > div:first-child { font-weight: 600; color: var(--charcoal-dk); }

.progress {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; height: 8px; margin-top: 10px; overflow: hidden;
}
.progress .bar {
  height: 100%; background: var(--brand); transition: width 0.2s;
}