:root {
  --primary: #2563eb;
  --primary-600: #1d4ed8;
  --primary-50: #eff6ff;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --sidebar: #0f172a;
  --sidebar-text: #cbd5e1;
  --sidebar-active: #2563eb;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --info: #0284c7;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .06);
  --header-h: 68px;
  --sidebar-w: 268px;
  --sidebar-w-min: 80px;
}

[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111827;
  --surface-2: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #243044;
  --sidebar: #020617;
  --shadow: 0 10px 30px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--primary); text-decoration: none; }
.btn-primary, .bg-primary { background: var(--primary) !important; border-color: var(--primary) !important; }
.text-primary { color: var(--primary) !important; }

.app-shell { min-height: 100vh; display: flex; }
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar);
  color: var(--sidebar-text);
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  transition: width .2s ease, transform .2s ease;
}
.sidebar.collapsed { width: var(--sidebar-w-min); }
.sidebar-brand {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  color: #fff;
  font-weight: 800;
  letter-spacing: -.02em;
}
.sidebar-brand i { color: var(--primary); font-size: 1.4rem; }
.sidebar-nav { padding: 8px 12px 24px; overflow: auto; flex: 1; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--sidebar-text);
  padding: 11px 12px;
  border-radius: 10px;
  margin-bottom: 4px;
  font-weight: 600;
  font-size: .92rem;
}
.sidebar-nav a:hover, .sidebar-nav a.active {
  background: rgba(37, 99, 235, .18);
  color: #fff;
}
.sidebar-nav .nav-label { white-space: nowrap; }
.sidebar.collapsed .nav-label, .sidebar.collapsed .brand-text { display: none; }
.sidebar-section {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 16px 12px 6px;
  color: #64748b;
}
.sidebar.collapsed .sidebar-section { display: none; }

.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  transition: margin-left .2s ease;
}
.sidebar.collapsed ~ .main { margin-left: var(--sidebar-w-min); }

.topbar {
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 1030;
}
.page { padding: 22px; }
.page-title { font-weight: 800; letter-spacing: -.03em; margin: 0; }
.page-sub { color: var(--muted); font-size: .9rem; }

.card-soft {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.kpi {
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.kpi .label { color: var(--muted); font-size: .82rem; font-weight: 700; }
.kpi .value { font-size: 1.45rem; font-weight: 800; letter-spacing: -.03em; }
.kpi .icon {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center; background: var(--primary-50); color: var(--primary);
}
[data-theme="dark"] .kpi .icon { background: rgba(37,99,235,.15); }

.table-wrap { overflow: auto; }
.table { --bs-table-bg: transparent; color: var(--text); }
.table thead th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  border-color: var(--border);
  white-space: nowrap;
}
.table td { vertical-align: middle; border-color: var(--border); }
.stock-low { color: var(--warning); font-weight: 700; }
.stock-zero { color: var(--danger); font-weight: 700; }

.empty-state { text-align: center; padding: 56px 20px; color: var(--muted); }
.empty-state i { font-size: 2.4rem; margin-bottom: 12px; color: var(--primary); }

.form-control, .form-select {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
  border-radius: 10px;
  min-height: 44px;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 .2rem rgba(37,99,235,.15);
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(900px 400px at 10% 0%, rgba(37,99,235,.25), transparent 50%),
    radial-gradient(700px 400px at 100% 100%, rgba(14,165,233,.18), transparent 45%),
    var(--bg);
}
.auth-card { width: min(440px, 92vw); padding: 36px; }

.pdv-search { min-height: 56px; font-size: 1.05rem; }
.pdv-btn { min-height: 52px; font-weight: 700; }
.cart-item { border-bottom: 1px solid var(--border); padding: 12px 0; }
.pdv-total { font-size: 1.8rem; font-weight: 800; }

.wizard-steps { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.wizard-steps .step {
  flex: 1;
  min-width: 140px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-weight: 700;
  font-size: .85rem;
  color: var(--muted);
}
.wizard-steps .step.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.notif-dot {
  position: absolute; top: 6px; right: 6px;
  width: 8px; height: 8px; border-radius: 50%; background: #ef4444;
}
.avatar-circle {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: grid; place-items: center; font-weight: 800;
}

.overlay-loading {
  position: fixed; inset: 0; background: rgba(15,23,42,.28);
  display: none; place-items: center; z-index: 2000;
}
.overlay-loading.show { display: grid; }

@media (max-width: 991.98px) {
  .sidebar { transform: translateX(-100%); width: var(--sidebar-w); }
  .sidebar.open { transform: translateX(0); }
  .sidebar.collapsed { width: var(--sidebar-w); }
  .main, .sidebar.collapsed ~ .main { margin-left: 0; }
  .pdv-btn { min-height: 56px; }
}