:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --border: #dfe3ea;
  --text: #1c2733;
  --muted: #67788c;
  --primary: #2f6fed;
  --primary-dark: #2458c0;
  --success: #2f9e63;
  --danger: #d64545;
  --dark: #26313f;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 40, 80, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}

/* ---------- top bar / nav ---------- */
#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  background: #1c2733;
  color: #fff;
}
.brand { font-size: 18px; font-weight: 700; }
.brand span { color: #9fc0ff; font-weight: 500; }
.top-right { display: flex; align-items: center; gap: 10px; }
.top-actions { display: flex; align-items: center; gap: 10px; }
.hidden { display: none !important; }
.mode-tag {
  font-size: 11px; font-weight: 600; letter-spacing: .4px;
  background: rgba(255,255,255,.15); padding: 3px 9px; border-radius: 20px;
}
.user-email { font-size: 13px; color: #c8d4e3; }
.signin-wrap { display: flex; align-items: flex-start; justify-content: center; min-height: 75vh; padding-top: 30px; }

#nav {
  display: flex;
  gap: 2px;
  padding: 0 14px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
#nav.hidden { display: none; }
.nav-item {
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 3px solid transparent;
}
.nav-item:hover { color: var(--text); }
.nav-item.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ---------- layout ---------- */
.view { display: none; max-width: 1200px; margin: 0 auto; padding: 22px 18px 60px; }
.view.active { display: block; }
h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }
.right { float: right; }
.view-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.view-head h1 { margin: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 18px;
}

/* ---------- forms ---------- */
.form-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 120px; }
.field.grow { flex: 1 1 200px; }
.field span { font-size: 12px; color: var(--muted); font-weight: 600; }
.input {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
  min-width: 0;
}
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,111,237,.12); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: #f0f3f8; }
.btn:disabled { opacity: .5; cursor: not-allowed; background: #f4f6f9; }
.btn:disabled:hover { background: #f4f6f9; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #268555; }
.btn-dark { background: var(--dark); border-color: var(--dark); color: #fff; }
.btn-dark:hover { background: #1a2530; }
.btn-danger { color: var(--danger); border-color: #f0c9c9; }
.btn-danger:hover { background: #fdecec; }
.btn-mini { padding: 4px 9px; font-size: 12px; border-radius: 6px; }
.btn-block { width: 100%; margin-top: 8px; }
.btn-link { border: none; background: none; color: var(--primary); font-weight: 500; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.table th, .table td {
  text-align: left; padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .3px; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover { background: #f5f8ff; }
.empty { color: var(--muted); text-align: center; padding: 22px !important; }
.nowrap { white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ---------- badges ---------- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.st-draft { background: #eef1f5; color: #5a6b7d; }
.st-proposed { background: #fdf1d9; color: #9a6a12; }
.st-approved { background: #dff2e5; color: #1f7a45; }
.st-prod { background: #e0e9fb; color: #2458c0; }
.st-delivered { background: #e4ecf4; color: #3b5878; }
.st-cancelled { background: #f8e3e3; color: #b03a3a; }

/* ---------- dashboard ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.stat-value { font-size: 30px; font-weight: 700; color: var(--primary); }
.stat-label { font-weight: 600; margin-top: 2px; }
.stat-sub { color: var(--muted); font-size: 12px; }
.demo-banner { margin-top: 16px; padding: 14px 16px; border-radius: var(--radius); background: #fff8e6; border: 1px solid #f0dfae; }
.demo-banner.muted { background: #eef6ee; border-color: #cde3cd; }

/* ---------- auth ---------- */
#view-auth { display: none; }
#view-auth.active { display: flex; align-items: center; justify-content: center; min-height: 80vh; }
.auth-card { width: 360px; max-width: 92vw; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 26px; box-shadow: var(--shadow); }
.auth-card .field { margin-bottom: 12px; min-width: 0; }
.auth-error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 4px 0; }
.auth-extra { display: none; }
.auth-extra.open { display: block; }

/* ---------- order items table (fixed columns so the extra 45° column fits) ---------- */
.table-order-items { table-layout: fixed; }
.table-order-items .input { width: 100%; }
.table-order-items th:nth-child(1) { width: 32%; }
.table-order-items th:nth-child(2) { width: 15%; }
.table-order-items th:nth-child(3) { width: 15%; }
.table-order-items th:nth-child(4) { width: 9%; }
.table-order-items th:nth-child(5) { width: 17%; }
.table-order-items th:nth-child(6) { width: 8%; }

.plan-color-heading { margin: 20px 0 6px; font-size: 15px; }

/* ---------- panel header row (title + action button) ---------- */
.panel-head-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.panel-head-row h2 { margin: 0; }
.panel-head-row h3 { margin: 0; font-size: 14px; }
.sub-head { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }

/* ---------- slab colors & prices (order section 1: one full-width row per color) ---------- */
#color-price-rows { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.color-price-row { display: flex; align-items: center; gap: 12px; }
.color-price-row .color-name-group { flex: 2 1 260px; min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.color-price-row .color-inventory-pick { font-size: 12px; padding: 5px 8px; color: var(--muted); }
.color-price-row .color-name-input { min-width: 0; font-weight: 700; }
.color-price-row .slab-price-input { flex: 1 1 220px; min-width: 0; }
.color-price-row .btn-danger { flex: 0 0 auto; }

/* ---------- cut sizes by color (order section 2: tabs instead of stacked boxes) ---------- */
.color-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 4px; border-bottom: 1px solid var(--border); }
.color-tab {
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  background: #f0f3f8;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: -1px;
}
.color-tab:hover { color: var(--text); }
.color-tab.active { background: var(--panel); color: var(--primary); border-color: var(--border); position: relative; }
#color-cutsizes { margin-top: 14px; }
.color-plan-slot:empty { display: none; }
.color-plan-slot { margin-top: 14px; }

/* ---------- 45° edge flags ---------- */
.chk45 { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600; color: var(--muted); white-space: nowrap; cursor: pointer; }
.chk45 input { margin: 0; }
.item-edge-row td { padding-top: 0; }
.edge45-box { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 8px 6px; background: #fafbfd; border-radius: 6px; }
.edge45-chk { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text); cursor: pointer; white-space: nowrap; }
.edge45-chk input { margin: 0; }

/* ---------- order / plan ---------- */
.order-head { display: flex; align-items: center; gap: 14px; }
.order-head h1 { margin: 0; }
.action-bar { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }

.plan-summary { display: flex; flex-wrap: wrap; gap: 12px; margin: 6px 0 16px; }
.plan-stat { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; font-size: 13px; color: var(--muted); }
.plan-stat b { color: var(--text); }
.alert-warn { background: #fdeaea; border: 1px solid #f3c1c1; color: #a13636; padding: 12px 14px; border-radius: 8px; margin-bottom: 14px; }

.sheet-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 18px; box-shadow: var(--shadow); }
.sheet-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.canvas-wrap { overflow-x: auto; text-align: center; }
.canvas-wrap canvas { max-width: 100%; height: auto; border: 1px solid #eee; background: #fff; }
.offcut-controls { margin-top: 12px; border-top: 1px dashed var(--border); padding-top: 10px; }
.offcut-row { display: flex; align-items: center; gap: 10px; padding: 4px 0; }
.offcut-row span { min-width: 150px; font-weight: 600; }
.offcut-row select { padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; }

/* ---------- modal ---------- */
.modal { display: none; position: fixed; inset: 0; background: rgba(20,30,50,.45); z-index: 100; align-items: center; justify-content: center; }
.modal.open { display: flex; }
.modal-card { width: 480px; max-width: 92vw; max-height: 90vh; overflow-y: auto; background: #fff; border-radius: 14px; padding: 22px; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.modal-card .field { margin-bottom: 12px; min-width: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }
.baked-note {
  display: none;
  background: #eef6ee;
  border: 1px solid #cde3cd;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  margin-bottom: 12px;
}
.baked-note code { background: rgba(0,0,0,.06); padding: 1px 4px; border-radius: 4px; }
.field input:disabled, .field select:disabled { background: #f2f4f7; color: #8a97a6; }

/* ---------- user accounts block (in Settings) ---------- */
.users-block { display: none; border-top: 1px solid var(--border); margin-top: 14px; padding-top: 14px; }
.users-block h3 { font-size: 14px; margin: 0 0 6px; }
.users-block .action-bar { margin: 10px 0 6px; }
.sep { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
.strong { font-weight: 600; color: var(--text); }
.role-pill {
  display: inline-block; padding: 2px 9px; border-radius: 20px;
  font-size: 11px; font-weight: 700; letter-spacing: .3px; text-transform: uppercase;
}
.role-admin { background: #e0e9fb; color: #2458c0; }
.role-staff { background: #eef1f5; color: #5a6b7d; }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: #1c2733; color: #fff; padding: 11px 18px; border-radius: 8px;
  opacity: 0; pointer-events: none; transition: all .25s; font-weight: 500; z-index: 200;
  max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #b03a3a; }
.toast.info { background: #1c2733; }

/* ---------- loading ---------- */
.loading-wrap { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 60vh; gap: 14px; }
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--primary);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  body { font-size: 15px; }

  #topbar { flex-wrap: wrap; padding: 10px 12px; gap: 8px; }
  .brand { font-size: 16px; }
  .top-actions { flex-wrap: wrap; gap: 6px; }
  .user-email { display: none; }

  #nav { overflow-x: auto; -webkit-overflow-scrolling: touch; padding: 0 8px; }
  .nav-item { padding: 10px 12px; white-space: nowrap; }

  .view { padding: 16px 12px 48px; }
  h1 { font-size: 19px; }

  .panel { padding: 12px; }

  .form-row { gap: 10px; }
  .form-row .field { min-width: 100%; }
  .form-row .btn { width: 100%; }

  .table-wrap .table { min-width: 480px; }

  .order-head { flex-direction: column; align-items: flex-start; gap: 6px; }

  .offcut-row { flex-wrap: wrap; }
  .offcut-row span { min-width: 0; width: 100%; }

  .modal-card { padding: 18px; }
}

.users-list { margin-top: 8px; }
.user-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.user-row .user-who { flex: 1 1 200px; min-width: 0; overflow-wrap: anywhere; }
#users-admin { display: none; }