/* ==========================================================================
   ADERMO — Design System
   Style direction: clean, white, Fluent/Microsoft 365-style admin surface.
   ========================================================================== */

:root {
  /* Surfaces */
  --color-bg: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F5F5F5;

  /* Borders */
  --color-border: #E5E5E5;
  --color-border-strong: #D1D1D1;

  /* Text */
  --color-text: #242424;
  --color-text-secondary: #616161;
  --color-text-tertiary: #8A8886;
  --color-text-on-primary: #FFFFFF;

  /* Brand */
  --color-primary: #0F6CBD;
  --color-primary-hover: #115EA3;
  --color-primary-pressed: #0C4A80;
  --color-primary-light: #EBF3FC;

  /* Status */
  --color-success: #0F7B0F;
  --color-success-light: #E9F7E9;
  --color-danger: #D13438;
  --color-danger-light: #FDF2F2;
  --color-warning: #9D5D00;
  --color-warning-light: #FFF4E5;

  /* Radius — intentionally square. This is a formal business tool, not
     a consumer app; keep every corner sharp. */
  --radius-sm: 0;
  --radius: 0;
  --radius-lg: 0;

  /* Bootstrap 5 drives its own components (btn, card, modal, dropdown,
     alert, badge, form-control...) off these variables, not ours.
     Overriding them here is what actually removes the rounding from
     Bootstrap's built-in CSS. */
  --bs-border-radius: 0;
  --bs-border-radius-sm: 0;
  --bs-border-radius-lg: 0;
  --bs-border-radius-xl: 0;
  --bs-border-radius-2xl: 0;
  --bs-border-radius-pill: 0;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Layout */
  --sidebar-width: 264px;
  --topbar-height: 56px;

  /* Type */
  --font-sans: "Segoe UI", "Segoe UI Web", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 4px;
}

h2.page-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
}

.page-subtitle {
  color: var(--color-text-secondary);
  font-size: 13px;
  margin-bottom: 20px;
}

/* Focus visibility (accessibility) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.card-body { padding: 20px; }

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--color-border);
  padding: 14px 20px;
  font-weight: 600;
}

/* KPI stat card */
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
  display: block;
  height: 100%;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  text-decoration: none;
}

.stat-card .stat-label {
  font-size: 12.5px;
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-card .stat-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.stat-card .stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.stat-card .stat-value.loading {
  color: var(--color-text-tertiary);
  font-weight: 400;
  font-size: 14px;
}

/* Accent variants for stat icon backgrounds */
.icon-tint-blue   { background: var(--color-primary-light); color: var(--color-primary); }
.icon-tint-green  { background: var(--color-success-light); color: var(--color-success); }
.icon-tint-red    { background: var(--color-danger-light); color: var(--color-danger); }
.icon-tint-orange { background: var(--color-warning-light); color: var(--color-warning); }
.icon-tint-gray   { background: var(--color-surface-hover); color: var(--color-text-secondary); }

/* ==========================================================================
   Buttons (Bootstrap 5 overrides, Fluent style)
   ========================================================================== */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13.5px;
  padding: 7px 14px;
}

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.btn-primary:active {
  background: var(--color-primary-pressed) !important;
  border-color: var(--color-primary-pressed) !important;
}

.btn-outline-secondary {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn-outline-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-light {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-light:hover {
  background: var(--color-surface-hover);
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.form-control, .form-select {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  font-size: 13.5px;
  padding: 7px 10px;
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ==========================================================================
   Tables
   ========================================================================== */
.table {
  font-size: 13.5px;
  color: var(--color-text);
  margin-bottom: 0;
}

.table thead th {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary);
  padding: 10px 14px;
  white-space: nowrap;
}

.table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--color-surface-hover); }

.table-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-card .table { margin: 0; }
.table-card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.table-card-header h5 { margin: 0; font-size: 15px; }

/* ==========================================================================
   Badges / status pills
   ========================================================================== */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-left: 3px solid currentColor;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.badge-pill.pill-success { background: var(--color-success-light); color: var(--color-success); }
.badge-pill.pill-danger  { background: var(--color-danger-light);  color: var(--color-danger); }
.badge-pill.pill-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-pill.pill-gray    { background: var(--color-surface-hover); color: var(--color-text-secondary); }

/* ==========================================================================
   Empty / loading states
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--color-text-secondary);
}
.empty-state .empty-icon {
  font-size: 32px;
  color: var(--color-text-tertiary);
  margin-bottom: 12px;
}
.empty-state .empty-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.skeleton {
  background: linear-gradient(90deg, var(--color-surface-hover) 25%, #ececec 37%, var(--color-surface-hover) 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (prefers-reduced-motion: reduce) {
  .skeleton { animation: none; }
  .stat-card { transition: none; }
}