/* ── Reset & tokens ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font: "Segoe UI", "Nunito", system-ui, -apple-system, sans-serif;
  --navy:    #0C2D5E;
  --blue:    #1558A8;
  --blue-md: #2E75C8;
  --blue-lt: #D6E8FA;
  --blue-xl: #EEF5FD;
  --green:   #1A6B2F;  --green-lt: #D6EDDD;
  --red:     #B51C1C;  --red-lt:   #FAE0E0;
  --amber:   #7A4500;  --amber-lt: #FDF0DC;
  --gray-1:  #1E1E1E;  --gray-2:   #3C3C3C;
  --gray-3:  #6B6B6B;  --gray-4:   #A8A8A8;
  --gray-5:  #E4E4E4;  --gray-6:   #F6F7F8;
  --radius:  10px;     --radius-sm: 7px;
  --shadow:  0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.06);
}

html, body { height: 100%; background: #F0F2F5; }
body {
  font-family: var(--font);
  font-size: 13px;
  color: var(--gray-1);
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */
.app { display: flex; flex-direction: column; min-height: 100vh; }
.main-body { flex: 1; padding: 18px 20px; background: #F0F2F5; }

/* ── Top nav ─────────────────────────────────────────────────────────────── */
.topnav {
  background: var(--navy);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 56px; gap: 12px;
  position: sticky; top: 0; z-index: 50;
}
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo {
  width: 36px; height: 36px; background: var(--blue-md);
  border-radius: 9px; display: flex; align-items: center;
  justify-content: center; color: #B5D4F4; font-size: 19px;
}
.nav-title { font-size: 14px; font-weight: 700; color: #fff; line-height: 1.2; }
.nav-sub   { font-size: 11px; color: #7BAED4; font-weight: 600; }
.nav-tabs  { display: flex; gap: 2px; }
.ntab {
  padding: 7px 14px; border-radius: 7px;
  font-size: 12px; font-weight: 600; color: #7BAED4;
  cursor: pointer; border: none; background: transparent;
  font-family: var(--font); display: flex; align-items: center; gap: 5px;
  white-space: nowrap; transition: background .15s, color .15s;
}
.ntab i { font-size: 14px; }
.ntab:hover { color: #C8E0F8; background: rgba(255,255,255,.09); }
.ntab.active { color: var(--navy); background: #fff; font-weight: 700; }
.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.sync-badge {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 600; color: #7BAED4;
  background: rgba(255,255,255,.08);
  padding: 4px 10px; border-radius: 20px;
}
.sync-dot { width: 7px; height: 7px; border-radius: 50%; background: #7BAED4; }
.sync-dot.ok   { background: #4ade80; }
.sync-dot.err  { background: #f87171; }
.sync-dot.spin { background: #facc15; animation: blink 1s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }
.btn-firebase {
  display: flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 700; font-family: var(--font);
  padding: 6px 12px; border-radius: 7px; cursor: pointer;
  background: rgba(255,255,255,.1); border: .5px solid rgba(255,255,255,.2);
  color: #B5D4F4; transition: background .15s;
}
.btn-firebase i { color: #F57C00; font-size: 14px; }
.btn-firebase:hover { background: rgba(255,255,255,.18); }

/* ── Panes ──────────────────────────────────────────────────────────────── */
.pane { display: none; }
.pane.active { display: block; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border: .5px solid var(--gray-5);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card-hd {
  display: flex; align-items: flex-start;
  justify-content: space-between; margin-bottom: 16px; gap: 8px;
}
.card-ttl {
  font-size: 11px; font-weight: 700; color: var(--gray-3);
  text-transform: uppercase; letter-spacing: .55px;
}
.card-sub  { font-size: 11px; font-weight: 600; color: var(--gray-4); margin-top: 2px; }
.card-link {
  font-size: 11px; font-weight: 700; color: var(--blue);
  cursor: pointer; display: flex; align-items: center; gap: 3px;
}
.card-link:hover { color: var(--navy); }

/* ── KPI row ─────────────────────────────────────────────────────────────── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px; margin-bottom: 16px;
}
.kpi-card {
  background: #fff; border: .5px solid var(--gray-5);
  border-radius: var(--radius); padding: 14px 15px 13px;
  position: relative; overflow: hidden; box-shadow: var(--shadow);
  transition: box-shadow .15s;
}
.kpi-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.1); }
.kpi-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; border-radius: var(--radius) var(--radius) 0 0;
}
.kpi-label {
  font-size: 11px; font-weight: 700; color: var(--gray-3);
  letter-spacing: .4px; text-transform: uppercase; margin-bottom: 6px;
  display: flex; align-items: center; gap: 5px;
}
.kpi-dot { width: 8px; height: 8px; border-radius: 50%; }
.kpi-value {
  font-size: 25px; font-weight: 700; letter-spacing: -.6px;
  line-height: 1; margin-bottom: 7px;
}
.kpi-badge {
  display: inline-flex; align-items: center; gap: 3px;
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 20px;
}
.kpi-badge.up { background: var(--green-lt); color: var(--green); }
.kpi-badge.dn { background: var(--red-lt);   color: var(--red);   }
.kpi-badge.fl { background: var(--gray-6);   color: var(--gray-3);}
.kpi-prev { font-size: 11px; font-weight: 600; color: var(--gray-4); margin-top: 5px; }

/* ── Dashboard grid ─────────────────────────────────────────────────────── */
.row-charts {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 14px; margin-bottom: 16px;
}
.chart-card { }
.chart-legend {
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: flex-end; align-items: center;
}
.legend-item {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: var(--gray-3);
}
.legend-dot { width: 9px; height: 9px; border-radius: 50%; }
.chart-wrap { position: relative; height: 220px; }

/* ── Tables ──────────────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; table-layout: fixed; font-family: var(--font); }
th {
  font-size: 11px; font-weight: 700; color: var(--gray-3);
  padding: 9px 10px; text-align: left;
  border-bottom: .5px solid var(--gray-5);
  text-transform: uppercase; letter-spacing: .4px;
}
td { padding: 10px 10px; border-bottom: .5px solid var(--gray-5); font-size: 13px; }
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--gray-6); }
.nr { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }

/* pills */
.pill {
  display: inline-flex; align-items: center; gap: 3px;
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 20px;
}
.pill.up { background: var(--green-lt); color: var(--green); }
.pill.dn { background: var(--red-lt);   color: var(--red);   }
.pill.fl { background: var(--gray-6);   color: var(--gray-3);}

/* ── Entry pane ─────────────────────────────────────────────────────────── */
.entry-card { margin-bottom: 14px; }
.step-hd { display: flex; align-items: center; gap: 9px; margin-bottom: 16px; }
.step-num {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--blue-lt); color: var(--navy);
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.step-label { font-size: 13px; font-weight: 700; }
.step-hint  { font-size: 11px; font-weight: 600; color: var(--gray-4); margin-left: auto; }
.fg2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.fg-span2 { grid-column: 1 / 3; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 11px; font-weight: 700; color: var(--gray-3); letter-spacing: .3px; }
.optional { font-weight: 400; opacity: .6; }
.field input, .field select {
  font-size: 13px; font-weight: 600; padding: 9px 12px;
  border: .5px solid var(--gray-5); border-radius: var(--radius-sm);
  background: #fff; color: var(--gray-1); width: 100%; font-family: var(--font);
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus {
  outline: none; border-color: var(--blue-md);
  box-shadow: 0 0 0 3px var(--blue-lt);
}
.warning-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px; background: var(--amber-lt);
  border: .5px solid #f0c87a; border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 600; color: var(--amber);
}
/* price input rows */
.price-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 15px; background: var(--gray-6);
  border: .5px solid var(--gray-5); border-radius: var(--radius-sm);
  margin-bottom: 8px; transition: border-color .15s;
}
.price-row:focus-within { border-color: var(--blue-md); background: #fff; }
.price-dot { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.price-name { flex: 1; font-size: 13px; font-weight: 700; }
.price-name span { display: block; font-size: 10px; font-weight: 600; color: var(--gray-4); letter-spacing: .3px; }
.price-prev { font-size: 11px; font-weight: 600; color: var(--gray-4); min-width: 75px; text-align: right; }
.pinput { width: 110px; }
.pinput input {
  font-size: 15px; font-weight: 700; padding: 8px 10px;
  border: .5px solid var(--gray-5); border-radius: var(--radius-sm);
  background: #fff; color: var(--gray-1); width: 100%;
  text-align: right; font-family: var(--font);
  transition: border-color .15s, box-shadow .15s;
}
.pinput input:focus {
  outline: none; border-color: var(--blue-md);
  box-shadow: 0 0 0 3px var(--blue-lt);
}
.pdiff { min-width: 76px; text-align: right; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; font-family: var(--font);
  padding: 9px 17px; border-radius: var(--radius-sm);
  cursor: pointer; border: .5px solid var(--gray-5);
  background: #fff; color: var(--gray-2);
  transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { background: var(--gray-6); }
.btn i { font-size: 14px; }
.btn.primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn.primary:hover { background: var(--navy); border-color: var(--navy); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--gray-3); }
.btn.ghost:hover { background: var(--gray-6); color: var(--gray-2); }
.btn.danger { background: transparent; border-color: transparent; color: var(--red); }
.btn.danger:hover { background: var(--red-lt); }
.btn.warn { background: transparent; border-color: transparent; color: var(--amber); }
.btn.warn:hover { background: var(--amber-lt); }
.btn.sm { padding: 6px 10px; font-size: 11px; }
.btn-row { display: flex; gap: 8px; align-items: center; }

/* ── Toasts ─────────────────────────────────────────────────────────────── */
.toast {
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 600; margin-bottom: 12px;
  display: none; align-items: center; gap: 8px;
}
.toast.show { display: flex; }
.toast.ok   { background: var(--green-lt); color: var(--green); border: .5px solid #a3d9b2; }
.toast.err  { background: var(--red-lt);   color: var(--red);   border: .5px solid #f5b8b8; }
.toast.warn { background: var(--amber-lt); color: var(--amber); border: .5px solid #f0c87a; }

/* ── History ─────────────────────────────────────────────────────────────── */
.hist-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; margin-bottom: 14px;
}
.count-badge {
  font-size: 11px; font-weight: 700; color: var(--gray-3);
  background: var(--gray-6); padding: 2px 8px; border-radius: 20px;
}
.mchip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 5px 12px; border-radius: 20px; font-size: 11px; font-weight: 700;
  border: .5px solid var(--gray-5); background: #fff; color: var(--gray-3);
  cursor: pointer; font-family: var(--font); transition: background .15s, border-color .15s;
}
.mchip.on  { background: var(--blue-lt); border-color: #7BAED4; color: var(--navy); }
.mchip:hover:not(.on) { background: var(--gray-6); }

/* ── Products ─────────────────────────────────────────────────────────────── */
.products-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.color-row { display: flex; gap: 7px; flex-wrap: wrap; padding-top: 4px; }
.color-swatch {
  width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid transparent; cursor: pointer;
  transition: transform .15s, border-color .15s;
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.active { border-color: var(--gray-1); transform: scale(1.1); }
/* product cards */
.prod-card {
  background: #fff; border: .5px solid var(--gray-5);
  border-radius: var(--radius); padding: 14px; margin-bottom: 10px;
  transition: border-color .15s, box-shadow .15s;
}
.prod-card:hover   { border-color: var(--gray-4); }
.prod-card.editing { border-color: var(--blue-md); box-shadow: 0 0 0 3px var(--blue-lt); }
.prod-card-top { display: flex; align-items: center; gap: 10px; }
.prod-swatch {
  width: 38px; height: 38px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; flex-shrink: 0;
}
.prod-info { flex: 1; }
.prod-info strong { font-size: 13px; font-weight: 700; display: block; }
.prod-info span   { font-size: 11px; font-weight: 600; color: var(--gray-4); }
.prod-stat { font-size: 13px; font-weight: 700; min-width: 65px; text-align: right; }
.prod-actions { display: flex; gap: 4px; flex-shrink: 0; }
.prod-edit-form {
  display: none; margin-top: 13px; padding-top: 13px;
  border-top: .5px solid var(--gray-5);
}
.prod-edit-form.open { display: block; }
.edit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.edit-brow { display: flex; gap: 8px; margin-top: 12px; }

/* info bar */
.info-bar {
  background: var(--blue-xl); border: .5px solid var(--blue-lt);
  border-radius: var(--radius); padding: 12px 15px;
  font-size: 12px; font-weight: 600; color: #2E4E7E; line-height: 1.8;
}
.info-bar i { margin-right: 5px; color: var(--blue-md); }

/* ── Modals & Overlay ───────────────────────────────────────────────────── */
.overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  display: none; align-items: center; justify-content: center; z-index: 200;
  backdrop-filter: blur(2px);
}
.overlay.show { display: flex; }
.modal {
  background: #fff; border-radius: 14px;
  border: .5px solid var(--gray-5);
  padding: 28px; width: 380px; max-width: 94vw;
  box-shadow: 0 8px 40px rgba(0,0,0,.18);
  animation: popIn .18s ease;
}
@keyframes popIn { from { transform: scale(.95); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-icon {
  width: 44px; height: 44px; border-radius: 11px;
  background: var(--amber-lt); color: #F57C00;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 14px;
}
.modal-icon.danger { background: var(--red-lt); color: var(--red); }
.modal-title  { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.modal-body   { font-size: 13px; font-weight: 600; color: var(--gray-3); margin-bottom: 18px; line-height: 1.65; }
.modal-fields { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.modal-err    { display: none; font-size: 12px; font-weight: 600; color: var(--red); background: var(--red-lt); border: .5px solid #f5b8b8; border-radius: var(--radius-sm); padding: 8px 12px; margin-bottom: 12px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* ── Empty states ───────────────────────────────────────────────────────── */
.empty { text-align: center; padding: 32px; color: var(--gray-4); }
.empty i  { font-size: 30px; color: var(--gray-5); display: block; margin-bottom: 8px; }
.empty p  { font-size: 13px; font-weight: 600; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .nav-tabs { display: none; }
  .row-charts { grid-template-columns: 1fr; }
  .products-layout { grid-template-columns: 1fr; }
  .fg2 { grid-template-columns: 1fr; }
  .fg-span2 { grid-column: 1; }
}