/* ═══════════════════════════════════════════════════════════════
   FarmaSaaS — Design System
   Stack: Bootstrap 5 + Custom Properties
═══════════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --fs-sidebar-w: 248px;
  --fs-topbar-h: 56px;

  --fs-primary:     #0066CC;
  --fs-primary-d:   #0052A3;
  --fs-primary-l:   #EBF4FF;
  --fs-success:     #16A34A;
  --fs-warning:     #D97706;
  --fs-danger:      #DC2626;
  --fs-info:        #0891B2;

  --fs-bg:          #F4F6F9;
  --fs-surface:     #FFFFFF;
  --fs-border:      #E2E8F0;
  --fs-text:        #1A202C;
  --fs-muted:       #718096;
  --fs-sidebar-bg:  #111827;
  --fs-sidebar-txt: #CBD5E0;
  --fs-sidebar-act: #FFFFFF;
  --fs-topbar-bg:   #FFFFFF;

  --fs-radius:      10px;
  --fs-radius-sm:   6px;
  --fs-shadow:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --fs-shadow-md:   0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);

  --font-main:      'IBM Plex Sans', system-ui, sans-serif;
  --font-head:      'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono:      'IBM Plex Mono', 'Courier New', monospace;
}

[data-bs-theme="dark"] {
  --fs-bg:          #0F172A;
  --fs-surface:     #1E293B;
  --fs-border:      #334155;
  --fs-text:        #F1F5F9;
  --fs-muted:       #94A3B8;
  --fs-topbar-bg:   #1E293B;
}

/* ── Reset / Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  font-family: var(--font-main);
  background: var(--fs-bg);
  color: var(--fs-text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); }
.font-monospace { font-family: var(--font-mono) !important; }

/* ── Layout Principal ──────────────────────────────────────── */
#sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--fs-sidebar-w);
  height: 100vh;
  background: var(--fs-sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1040;
  transition: transform .25s cubic-bezier(.4,0,.2,1);
  overflow: hidden;
}

#sidebar.collapsed {
  transform: translateX(calc(-1 * var(--fs-sidebar-w)));
}

#main-wrap {
  margin-left: var(--fs-sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left .25s cubic-bezier(.4,0,.2,1);
}

#main-wrap.expanded {
  margin-left: 0;
}

/* ── Sidebar Brand ─────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.sidebar-logo {
  width: 36px; height: 36px;
  background: var(--fs-primary);
  border-radius: var(--fs-radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.sidebar-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  line-height: 1;
}

.sidebar-sub {
  font-size: 11px;
  color: var(--fs-sidebar-txt);
  margin-top: 2px;
  opacity: .7;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

/* ── Sidebar Menu ──────────────────────────────────────────── */
.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: 12px 8px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
}

.menu-section {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  color: rgba(255,255,255,.3);
  padding: 16px 10px 6px;
  text-transform: uppercase;
}

.menu-section:first-child { padding-top: 4px; }

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--fs-radius-sm);
  color: var(--fs-sidebar-txt);
  text-decoration: none;
  font-weight: 500;
  font-size: 13px;
  transition: all .15s ease;
  cursor: pointer;
  margin-bottom: 1px;
}

.menu-item i { font-size: 16px; flex-shrink: 0; width: 18px; text-align: center; }
.menu-item span { flex: 1; }

.menu-item:hover {
  background: rgba(255,255,255,.07);
  color: #fff;
}

.menu-item.active {
  background: var(--fs-primary);
  color: #fff;
}

.menu-badge {
  font-size: 9px;
  background: rgba(255,255,255,.15);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

/* ── Sidebar Footer ────────────────────────────────────────── */
.sidebar-footer {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 12px;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px; height: 34px;
  background: var(--fs-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.user-role { font-size: 11px; color: var(--fs-sidebar-txt); opacity: .7; }

.btn-logout {
  color: rgba(255,255,255,.4);
  font-size: 16px;
  transition: color .15s;
  text-decoration: none;
  padding: 4px;
}
.btn-logout:hover { color: var(--fs-danger); }

/* ── Topbar ────────────────────────────────────────────────── */
.topbar {
  height: var(--fs-topbar-h);
  background: var(--fs-topbar-bg);
  border-bottom: 1px solid var(--fs-border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--fs-shadow);
}

.topbar-btn {
  width: 34px; height: 34px;
  border: none;
  background: transparent;
  border-radius: var(--fs-radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--fs-muted);
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}

.topbar-btn:hover {
  background: var(--fs-bg);
  color: var(--fs-text);
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.topbar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--fs-bg);
  border: 1px solid var(--fs-border);
  border-radius: 20px;
  padding: 5px 14px;
  margin-right: 8px;
}

.topbar-search i { color: var(--fs-muted); font-size: 13px; }

.topbar-search input {
  border: none;
  background: transparent;
  outline: none;
  width: 220px;
  font-size: 13px;
  color: var(--fs-text);
}

.branch-badge {
  background: var(--fs-primary-l);
  color: var(--fs-primary);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ── Page Content ──────────────────────────────────────────── */
#page-content {
  flex: 1;
  padding: 24px;
  max-width: 1600px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.page-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--fs-text);
  margin: 0;
  line-height: 1.2;
}

.page-subtitle {
  color: var(--fs-muted);
  font-size: 13px;
  margin: 2px 0 0;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  box-shadow: var(--fs-shadow);
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--fs-border);
  background: transparent;
}

.card-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  color: var(--fs-text);
}

.card-body {
  padding: 18px;
}

.card-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--fs-border);
  background: transparent;
}

/* ── KPI Cards ─────────────────────────────────────────────── */
.kpi-card {
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  padding: 18px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  box-shadow: var(--fs-shadow);
}

.kpi-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--fs-muted);
  margin: 0 0 8px;
}

.kpi-value {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 800;
  color: var(--fs-text);
  margin: 0 0 4px;
  line-height: 1;
}

.kpi-trend, .kpi-sub {
  font-size: 12px;
  color: var(--fs-muted);
}

.kpi-trend.positive { color: var(--fs-success); }
.kpi-trend.negative { color: var(--fs-danger); }

.kpi-icon {
  width: 44px; height: 44px;
  border-radius: var(--fs-radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.kpi-primary .kpi-icon  { background: var(--fs-primary-l); color: var(--fs-primary); }
.kpi-success .kpi-icon  { background: #F0FDF4; color: var(--fs-success); }
.kpi-warning .kpi-icon  { background: #FFFBEB; color: var(--fs-warning); }
.kpi-danger  .kpi-icon  { background: #FEF2F2; color: var(--fs-danger); }
.kpi-info    .kpi-icon  { background: #ECFEFF; color: var(--fs-info); }

/* ── Top Items List ────────────────────────────────────────── */
.top-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--fs-border);
}

.top-item:last-child { border-bottom: none; }

.rank {
  width: 22px; height: 22px;
  background: var(--fs-primary-l);
  color: var(--fs-primary);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* ── Quick Access ──────────────────────────────────────────── */
.quick-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--fs-bg);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  text-decoration: none;
  color: var(--fs-text);
  font-size: 13px;
  font-weight: 500;
  transition: all .15s;
}

.quick-btn:hover {
  background: var(--fs-primary-l);
  border-color: var(--fs-primary);
  color: var(--fs-primary);
}

.quick-btn i { font-size: 16px; }
.quick-btn-alert { border-color: var(--fs-danger) !important; }

/* ── Flash Alert ───────────────────────────────────────────── */
.alert-toast {
  position: fixed;
  top: 70px;
  right: 20px;
  z-index: 9999;
  max-width: 420px;
  box-shadow: var(--fs-shadow-md);
  animation: slideIn .25s ease;
}

@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ══════════════════════════════════════════════════════════════
   POS — Punto de Venta
══════════════════════════════════════════════════════════════ */

.pos-layout {
  display: flex;
  gap: 16px;
  height: calc(100vh - var(--fs-topbar-h) - 48px);
  min-height: 600px;
}

.pos-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  overflow: hidden;
  box-shadow: var(--fs-shadow);
}

.pos-panel {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  overflow: hidden;
  box-shadow: var(--fs-shadow);
}

/* POS Header OS */
.pos-header {
  background: var(--fs-bg);
  border-bottom: 1px solid var(--fs-border);
  padding: 10px 14px;
}

.form-label-sm {
  font-size: 11px;
  font-weight: 600;
  color: var(--fs-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  display: block;
  margin-bottom: 3px;
}

/* POS Search Bar */
.pos-search-bar {
  padding: 10px 14px;
  border-bottom: 1px solid var(--fs-border);
  background: var(--fs-surface);
}

.pos-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.pos-search-icon {
  position: absolute;
  left: 14px;
  color: var(--fs-muted);
  font-size: 14px;
  pointer-events: none;
}

.pos-search-input {
  width: 100%;
  padding: 10px 100px 10px 40px;
  border: 2px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
  background: var(--fs-surface);
  color: var(--fs-text);
}

.pos-search-input:focus {
  border-color: var(--fs-primary);
}

.pos-search-hint {
  position: absolute;
  right: 14px;
  color: var(--fs-muted);
  font-size: 11px;
}

/* Autocomplete */
.autocomplete-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  box-shadow: var(--fs-shadow-md);
  z-index: 200;
  max-height: 380px;
  overflow-y: auto;
}

.ac-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  cursor: pointer;
  transition: background .1s;
  border-bottom: 1px solid var(--fs-border);
}

.ac-item:last-child { border-bottom: none; }
.ac-item:hover, .ac-item.focused { background: var(--fs-primary-l); }

.ac-name { font-weight: 600; font-size: 13px; }
.ac-sub  { font-size: 11px; color: var(--fs-muted); }

.ac-price {
  margin-left: auto;
  font-weight: 700;
  color: var(--fs-primary);
  font-size: 14px;
  flex-shrink: 0;
}

.ac-stock {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  flex-shrink: 0;
}

.ac-stock.ok  { background: #F0FDF4; color: var(--fs-success); }
.ac-stock.low { background: #FFFBEB; color: var(--fs-warning); }
.ac-stock.out { background: #FEF2F2; color: var(--fs-danger); }

/* POS Items Table */
.pos-items {
  flex: 1;
  overflow-y: auto;
}

.pos-table { margin: 0; }
.pos-table-head th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--fs-muted);
  background: var(--fs-bg);
  border-bottom: 2px solid var(--fs-border);
  padding: 8px 10px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.pos-table tbody tr { transition: background .1s; }
.pos-table tbody tr:hover { background: var(--fs-bg); }

.qty-ctrl {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
}

.qty-btn {
  width: 24px; height: 24px;
  border: 1px solid var(--fs-border);
  background: var(--fs-surface);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: all .1s;
  line-height: 1;
}

.qty-btn:hover { background: var(--fs-primary); color: #fff; border-color: var(--fs-primary); }

.qty-input {
  width: 42px;
  text-align: center;
  border: 1px solid var(--fs-border);
  border-radius: 4px;
  padding: 2px 4px;
  font-size: 13px;
  font-weight: 700;
}

/* POS Footer Bar */
.pos-footer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-top: 1px solid var(--fs-border);
  background: var(--fs-bg);
}

/* POS Panel */
.pos-panel-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--fs-muted);
  margin: 0;
}

.pos-summary {
  padding: 14px;
  border-bottom: 1px solid var(--fs-border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 5px 0;
  color: var(--fs-muted);
}

.summary-total {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 10px;
  border-top: 2px solid var(--fs-border);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--fs-primary);
}

.pos-section {
  padding: 14px;
  border-bottom: 1px solid var(--fs-border);
}

/* Payment Tabs */
.payment-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 4px;
}

.pay-tab {
  padding: 6px 4px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  background: var(--fs-surface);
  color: var(--fs-muted);
  cursor: pointer;
  transition: all .15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.pay-tab i { font-size: 16px; }
.pay-tab.active {
  background: var(--fs-primary);
  border-color: var(--fs-primary);
  color: #fff;
}

.pos-confirm {
  padding: 14px;
  margin-top: auto;
}

.btn-link-sm {
  border: none;
  background: none;
  color: var(--fs-primary);
  font-size: 13px;
  cursor: pointer;
  padding: 0 4px;
}

/* ── Forms ─────────────────────────────────────────────────── */
.form-control, .form-select {
  border-radius: var(--fs-radius-sm);
  border-color: var(--fs-border);
  font-size: 13px;
  color: var(--fs-text);
  background: var(--fs-surface);
}

.form-control:focus, .form-select:focus {
  border-color: var(--fs-primary);
  box-shadow: 0 0 0 3px rgba(0,102,204,.12);
}

.form-label { font-size: 13px; font-weight: 600; margin-bottom: 5px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn { border-radius: var(--fs-radius-sm); font-weight: 600; font-size: 13px; }
.btn-primary { background: var(--fs-primary); border-color: var(--fs-primary); }
.btn-primary:hover { background: var(--fs-primary-d); border-color: var(--fs-primary-d); }

/* ── Tables ────────────────────────────────────────────────── */
.table > :not(caption) > * > * {
  padding: 10px 14px;
  font-size: 13px;
}

.table thead th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--fs-muted);
}

/* ── Auth ──────────────────────────────────────────────────── */
.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0F172A;
  overflow: hidden;
}

.auth-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 60% 40%, rgba(0,102,204,.25) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(16,163,74,.12) 0%, transparent 50%);
  pointer-events: none;
}

.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.auth-card {
  background: #1E293B;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 36px;
  box-shadow: 0 25px 50px rgba(0,0,0,.5);
}

.auth-header { text-align: center; margin-bottom: 28px; }
.auth-icon { font-size: 48px; margin-bottom: 12px; }
.auth-brand { font-family: var(--font-head); font-weight: 800; font-size: 28px; color: #fff; margin: 0; }
.auth-tagline { color: #64748B; font-size: 13px; margin: 4px 0 0; }

.auth-card .form-label { color: #CBD5E0; }
.auth-card .form-control, .auth-card .form-select {
  background: #0F172A;
  border-color: rgba(255,255,255,.12);
  color: #fff;
}
.auth-card .form-control:focus { border-color: var(--fs-primary); background: #0F172A; color: #fff; }
.auth-card .input-group-text { background: #0F172A; border-color: rgba(255,255,255,.12); }

.auth-footer { text-align: center; margin-top: 20px; }
.auth-footer-global { text-align: center; margin-top: 16px; }

/* ── Customer Avatar ───────────────────────────────────────── */
.customer-avatar {
  width: 64px; height: 64px;
  background: var(--fs-primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 992px) {
  #sidebar {
    transform: translateX(calc(-1 * var(--fs-sidebar-w)));
  }
  #sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: 0 0 60px rgba(0,0,0,.5);
  }
  #main-wrap {
    margin-left: 0 !important;
  }
  .pos-layout {
    flex-direction: column;
    height: auto;
  }
  .pos-panel {
    width: 100%;
  }
}

/* ── Utilidades ────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--fs-muted);
  font-size: 24px;
}

.badge { font-size: 11px; font-weight: 600; padding: 3px 8px; }

kbd {
  background: rgba(0,0,0,.06);
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 4px;
  font-size: 10px;
  padding: 1px 5px;
  font-family: var(--font-mono);
}