:root {
  --ink: #1a1a1a;
  --ink-soft: #2c2c2c;
  --cream: #f5f1e8;
  --paper: #fafaf7;
  --paper-2: #ffffff;
  --line: #e5e0d3;
  --line-strong: #d4cdb8;
  --muted: #6b6558;
  --accent: #b8472a;
  --accent-dark: #8f3620;
  --gold: #c9a961;
  --green: #4a7c59;
  --red: #b8472a;
  --shadow-sm: 0 1px 2px rgba(26,26,26,.04);
  --shadow-md: 0 4px 16px rgba(26,26,26,.06);
  --shadow-lg: 0 12px 40px rgba(26,26,26,.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: 'Georgia', 'Cambria', 'Times New Roman', serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.sans, button, input, select, textarea, .num {
  font-family: 'Inter', 'SF Pro Text', system-ui, -apple-system, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============ APP LAYOUT ============ */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--ink);
  color: var(--cream);
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(245,241,232,.1);
  margin-bottom: 20px;
}
.brand-mark {
  width: 38px; height: 38px;
  background: var(--gold);
  color: var(--ink);
  display: grid; place-items: center;
  font-size: 18px;
  border-radius: 2px;
}
.brand-name {
  font-family: Georgia, serif;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .3px;
}
.brand-sub {
  font-family: Inter, sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  margin-top: 2px;
}

.nav { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  color: rgba(245,241,232,.7);
  font-family: Inter, sans-serif;
  font-size: 13px;
  border-radius: 4px;
  transition: all .15s;
}
.nav a:hover { background: rgba(245,241,232,.06); color: var(--cream); text-decoration: none; }
.nav a.active {
  background: var(--cream);
  color: var(--ink);
  font-weight: 500;
}
.nav a.active .ico { color: var(--accent); }
.nav .ico { font-size: 14px; width: 16px; text-align: center; opacity: .8; }
.nav-divider {
  font-family: Inter, sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  margin: 18px 14px 8px;
}

.user-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: rgba(245,241,232,.05);
  border-radius: 4px;
  margin-top: 16px;
}
.avatar {
  width: 36px; height: 36px;
  background: var(--gold);
  color: var(--ink);
  display: grid; place-items: center;
  border-radius: 50%;
  font-family: Inter, sans-serif;
  font-weight: 600;
}
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-family: Inter, sans-serif; }
.user-role {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--gold); font-family: Inter, sans-serif;
}
.logout {
  color: rgba(245,241,232,.6); font-size: 18px; padding: 4px 8px;
}
.logout:hover { color: var(--accent); text-decoration: none; }

.main {
  padding: 36px 44px;
  max-width: 1400px;
  width: 100%;
}

/* ============ TYPOGRAPHY ============ */
.page-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ink);
}
.page-title {
  font-family: Georgia, serif;
  font-size: 30px;
  font-weight: 400;
  letter-spacing: -.5px;
}
.page-sub {
  font-family: Inter, sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--muted);
  margin-top: 4px;
}

h2 { font-family: Georgia, serif; font-weight: 500; font-size: 20px; margin-bottom: 14px; }
h3 { font-family: Inter, sans-serif; font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); margin-bottom: 12px; }

/* ============ CARDS ============ */
.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 22px;
  margin-bottom: 20px;
}
.card-flat { padding: 0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.stat {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
}
.stat.green::before { background: var(--green); }
.stat.gold::before { background: var(--gold); }
.stat.red::before { background: var(--red); }

.stat-label {
  font-family: Inter, sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
}
.stat-value {
  font-family: Georgia, serif;
  font-size: 26px;
  font-weight: 500;
  margin-top: 6px;
}
.stat-meta {
  font-family: Inter, sans-serif;
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* ============ TABLES ============ */
table {
  width: 100%;
  border-collapse: collapse;
  font-family: Inter, sans-serif;
  font-size: 13px;
}
th {
  text-align: left;
  padding: 12px 14px;
  background: var(--cream);
  color: var(--ink);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  border-bottom: 1px solid var(--line-strong);
}
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
tr:hover td { background: var(--cream); }
tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.center { text-align: center; }

.tag {
  display: inline-block;
  font-family: Inter, sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 3px 8px;
  border-radius: 2px;
  background: var(--cream);
  color: var(--ink-soft);
  font-weight: 600;
}
.tag.green { background: #e6efe8; color: var(--green); }
.tag.red { background: #f5e2dc; color: var(--red); }
.tag.gold { background: #f5ecd6; color: #8b6d2c; }

/* ============ FORMS ============ */
.form-row { display: grid; gap: 6px; margin-bottom: 16px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
label {
  font-family: Inter, sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  font-weight: 500;
}
input, select, textarea {
  background: var(--paper-2);
  border: 1px solid var(--line-strong);
  padding: 10px 12px;
  font-size: 14px;
  border-radius: 3px;
  color: var(--ink);
  width: 100%;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--ink);
}
textarea { resize: vertical; min-height: 70px; }

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--cream);
  border: none;
  padding: 10px 18px;
  font-family: Inter, sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 3px;
  transition: all .15s;
  text-decoration: none;
}
.btn:hover { background: var(--accent); text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { background: var(--cream); color: var(--ink); }
.btn-accent { background: var(--accent); }
.btn-accent:hover { background: var(--accent-dark); }
.btn-danger { background: var(--red); }
.btn-sm { padding: 6px 12px; font-size: 10px; }
.btn-block { display: block; width: 100%; text-align: center; }

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.toolbar .search { flex: 1; max-width: 360px; }

/* ============ ALERTS ============ */
.alert {
  padding: 12px 16px;
  border-radius: 3px;
  margin-bottom: 18px;
  font-family: Inter, sans-serif;
  font-size: 13px;
  border-left: 3px solid;
}
.alert-success { background: #ecf3ee; color: var(--green); border-left-color: var(--green); }
.alert-error   { background: #f5e2dc; color: var(--red);   border-left-color: var(--red); }

/* ============ LOGIN ============ */
.login-bg {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--ink);
  background-image:
    radial-gradient(circle at 20% 30%, rgba(201,169,97,.08), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(184,71,42,.08), transparent 50%);
  padding: 20px;
}
.login-card {
  background: var(--paper);
  width: 100%;
  max-width: 420px;
  padding: 44px 38px;
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
}
.login-card .brand-mark {
  width: 56px; height: 56px;
  font-size: 26px;
  margin: 0 auto 18px;
}
.login-title {
  text-align: center;
  font-family: Georgia, serif;
  font-size: 24px;
  margin-bottom: 6px;
}
.login-sub {
  text-align: center;
  font-family: Inter, sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 28px;
}
.login-hint {
  margin-top: 20px; padding: 12px;
  background: var(--cream);
  font-family: Inter, sans-serif;
  font-size: 11px;
  color: var(--muted);
  border-radius: 3px;
  line-height: 1.6;
}

/* ============ POS LAYOUT ============ */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 20px;
  height: calc(100vh - 72px);
}
.pos-products {
  display: flex; flex-direction: column;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.pos-search {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}
.pos-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  padding: 14px;
}
.product-tile {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 12px;
  border-radius: 3px;
  cursor: pointer;
  transition: all .15s;
  text-align: left;
  font-family: Inter, sans-serif;
}
.product-tile:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.product-tile.out { opacity: .4; cursor: not-allowed; }
.tile-name { font-size: 13px; font-weight: 500; margin-bottom: 6px; min-height: 32px; }
.tile-price { font-size: 15px; font-weight: 600; color: var(--accent); }
.tile-stock { font-size: 10px; text-transform: uppercase; color: var(--muted); letter-spacing: 1.5px; margin-top: 3px; }

.pos-cart {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.cart-head { padding: 16px; border-bottom: 1px solid var(--line); }
.cart-items { flex: 1; overflow-y: auto; padding: 8px; }
.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
  font-family: Inter, sans-serif;
  font-size: 13px;
}
.cart-item-name { font-weight: 500; }
.cart-item-sub { font-size: 11px; color: var(--muted); margin-top: 2px; }
.cart-controls { display: flex; align-items: center; gap: 4px; }
.qty-btn {
  width: 24px; height: 24px;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  border-radius: 2px;
  cursor: pointer; font-size: 14px;
}
.qty-btn:hover { background: var(--cream); }
.qty-input { width: 40px; text-align: center; padding: 2px; font-size: 12px; }
.remove-btn {
  background: none; border: none; color: var(--red);
  cursor: pointer; font-size: 16px; padding: 2px 6px;
}

.cart-total {
  padding: 16px;
  border-top: 1px solid var(--line-strong);
  background: var(--cream);
}
.total-row { display: flex; justify-content: space-between; padding: 4px 0; font-family: Inter, sans-serif; font-size: 13px; }
.total-row.grand { font-family: Georgia, serif; font-size: 22px; font-weight: 600; border-top: 1px solid var(--line-strong); margin-top: 8px; padding-top: 10px; }

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-family: Inter, sans-serif;
  font-size: 13px;
}

/* ============ INVOICE PRINT ============ */
.invoice {
  max-width: 800px;
  margin: 20px auto;
  background: white;
  padding: 50px;
  border: 1px solid var(--line);
}
.invoice-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 24px;
  align-items: center;
}
.invoice-logo {
  width: 90px; height: 90px;
  background: var(--ink);
  color: var(--gold);
  display: grid; place-items: center;
  font-size: 40px;
  border-radius: 4px;
  overflow: hidden;
}
.invoice-logo img { width: 100%; height: 100%; object-fit: cover; }
.invoice-biz-name { font-family: Georgia, serif; font-size: 26px; font-weight: 500; }
.invoice-biz-meta { font-family: Inter, sans-serif; font-size: 12px; color: var(--muted); margin-top: 4px; }
.invoice-title {
  font-family: Inter, sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--muted);
}
.invoice-no { font-family: Georgia, serif; font-size: 18px; font-weight: 600; }
.invoice-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
  font-family: Inter, sans-serif;
  font-size: 13px;
}
.invoice-meta .label { font-size: 10px; text-transform: uppercase; color: var(--muted); letter-spacing: 1.5px; }
.invoice-meta .value { font-weight: 500; margin-top: 2px; }
.invoice-foot {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 30px;
  margin-top: 24px;
}
.invoice-note {
  font-family: Georgia, serif;
  font-style: italic;
  color: var(--muted);
  font-size: 13px;
}
.invoice-sums { font-family: Inter, sans-serif; font-size: 13px; }
.invoice-sums .row { display: flex; justify-content: space-between; padding: 4px 0; }
.invoice-sums .row.grand {
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 600;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 10px 0;
  margin-top: 8px;
}
.print-actions {
  max-width: 800px;
  margin: 0 auto 20px;
  display: flex; gap: 10px; justify-content: flex-end;
}

@media print {
  body { background: white; }
  .sidebar, .print-actions, .alert { display: none !important; }
  .app { grid-template-columns: 1fr; }
  .main { padding: 0; }
  .invoice { border: none; margin: 0; padding: 20px; max-width: 100%; }
}

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; flex-direction: row; flex-wrap: wrap; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .pos-layout { grid-template-columns: 1fr; height: auto; }
  .main { padding: 20px; }
}

/* ============ DASHBOARD WIDGETS ============ */

.dash-grid { display: grid; gap: 20px; margin-bottom: 20px; }
.dash-grid-2-1 { grid-template-columns: 2fr 1fr; }
.dash-grid-1-1 { grid-template-columns: 1fr 1fr; }

@media (max-width: 1100px) {
  .dash-grid-2-1, .dash-grid-1-1 { grid-template-columns: 1fr; }
}

/* Delta indicator (▲ up / ▼ down) */
.delta {
  display: inline-block;
  font-family: Inter, sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 2px 6px;
  border-radius: 2px;
  margin-left: 4px;
}
.delta.up   { color: var(--green); background: #e6efe8; }
.delta.down { color: var(--red);   background: #f5e2dc; }

/* Chart legend dot */
.legend-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 4px;
}

/* ============ 7-DAY BAR CHART ============ */
.chart-wrap {
  padding: 10px 0 0;
}
.chart-bars {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  height: 240px;
  align-items: end;
}
.chart-col {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  cursor: default;
}
.chart-col.today .chart-label { color: var(--accent); font-weight: 600; }
.chart-col.today .chart-label::before {
  content: 'TODAY';
  display: block;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 2px;
}
.chart-bars-stack {
  flex: 1;
  width: 100%;
  display: flex;
  gap: 4px;
  justify-content: center;
  align-items: flex-end;
  padding: 0 8px;
}
.bar {
  flex: 1;
  max-width: 14px;
  min-height: 2px;
  border-radius: 2px 2px 0 0;
  transition: all .25s ease-out;
  position: relative;
}
.bar-sales  { background: var(--accent); }
.bar-profit { background: var(--green); }
.chart-col:hover .bar { filter: brightness(1.15); transform: translateY(-2px); }

.chart-label {
  font-family: Inter, sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  text-align: center;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  width: 100%;
}
.chart-sub {
  font-size: 9px;
  letter-spacing: 0.5px;
  margin-top: 2px;
  opacity: .7;
}

.chart-tooltip {
  position: absolute;
  bottom: calc(100% - 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--ink);
  color: var(--cream);
  padding: 8px 12px;
  border-radius: 3px;
  font-family: Inter, sans-serif;
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all .15s;
  z-index: 10;
  box-shadow: var(--shadow-md);
}
.chart-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--ink);
}
.chart-col:hover .chart-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============ PAYMENT METHOD BARS ============ */
.pay-row { margin-bottom: 14px; font-family: Inter, sans-serif; }
.pay-row:last-child { margin-bottom: 0; }
.pay-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 4px;
}
.pay-head span:first-child { text-transform: uppercase; letter-spacing: 1.5px; font-size: 11px; color: var(--muted); }
.pay-head .num { font-weight: 600; }
.pay-bar {
  background: var(--cream);
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
}
.pay-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  border-radius: 3px;
  transition: width .4s ease-out;
}
.pay-meta {
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
}

/* ============ RANK PILLS (top products) ============ */
.rank-pill {
  display: inline-grid;
  place-items: center;
  width: 24px; height: 24px;
  background: var(--cream);
  color: var(--muted);
  font-family: Georgia, serif;
  font-size: 13px;
  font-weight: 600;
  border-radius: 50%;
}
.rank-pill.rank-1 { background: var(--gold); color: var(--ink); }
.rank-pill.rank-2 { background: #d4cdb8; color: var(--ink); }
.rank-pill.rank-3 { background: #e8d4a8; color: var(--ink); }