:root {
  --app-bg: #f4f7f8;
  --app-card: #ffffff;
  --app-ink: #15262a;
  --app-muted: #5b7176;
  --app-accent: #0d7a6f;
  --app-accent-soft: #d7efe9;
  --app-border: #d7e2e0;
  --app-shadow: 0 10px 30px rgba(15, 40, 45, 0.08);
  --app-radius: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --app-bg: #0f1719;
    --app-card: #182225;
    --app-ink: #e8f2f0;
    --app-muted: #9bb0b4;
    --app-accent: #3ecfba;
    --app-accent-soft: #1c3734;
    --app-border: #2a3c40;
    --app-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
  }

  html {
    color-scheme: dark;
  }
}

body.app-body {
  background:
    radial-gradient(900px 400px at 0% 0%, color-mix(in srgb, var(--app-accent) 18%, transparent), transparent 60%),
    var(--app-bg);
  color: var(--app-ink);
  min-height: 100vh;
}

.app-navbar {
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--app-card) 88%, transparent) !important;
}

.app-main {
  animation: fadeUp 0.35s ease both;
}

.stat-card,
.panel-card,
.month-card {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius);
  box-shadow: var(--app-shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.stat-card:hover,
.month-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--app-accent) 45%, var(--app-border));
}

.stat-card .label {
  color: var(--app-muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card .value {
  font-size: 1.45rem;
  font-weight: 700;
}

.period-bar {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius);
  box-shadow: var(--app-shadow);
}

.table-wrap {
  overflow: auto;
  max-height: min(70vh, 720px);
  border-radius: 0.8rem;
  border: 1px solid var(--app-border);
  background: var(--app-card);
}

.table-sticky thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: color-mix(in srgb, var(--app-card) 92%, var(--app-accent-soft));
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}

.table-sticky thead th .sort-ind {
  opacity: 0.45;
  margin-left: 0.25rem;
}

.table-sticky thead th.is-sorted .sort-ind {
  opacity: 1;
  color: var(--app-accent);
}

.table-sticky tbody tr {
  transition: background-color 0.15s ease;
}

.table-sticky tbody tr:hover {
  background: color-mix(in srgb, var(--app-accent-soft) 55%, transparent);
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.85rem;
}

.month-card {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 1rem;
  cursor: pointer;
}

.month-card .month-title {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.chart-box {
  position: relative;
  min-height: 260px;
}

.employee-hero {
  background: linear-gradient(135deg, var(--app-accent-soft), var(--app-card));
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius);
  padding: 1.25rem 1.4rem;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .stat-card .value { font-size: 1.2rem; }
  .chart-box { min-height: 220px; }
}

/* Responsive / Diagnose */
html, body {
  overflow-x: hidden;
  max-width: 100%;
}

.app-navbar .navbar-nav {
  max-width: 100%;
}

.app-navbar .nav-link {
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.btn, .form-select, .form-control {
  max-width: 100%;
}

.form-select:focus,
.form-control:focus,
.btn:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--app-accent);
  outline-offset: 2px;
}

.code-block,
pre.code-block {
  background: color-mix(in srgb, var(--app-card) 80%, #000);
  border: 1px solid var(--app-border);
  border-radius: 0.75rem;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre;
  max-width: 100%;
  font-size: 0.85rem;
}

.diagnose-step {
  background: color-mix(in srgb, var(--app-card) 96%, var(--app-accent-soft));
}

.confirm-dialog {
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius);
  padding: 0;
  max-width: min(92vw, 28rem);
}

.confirm-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.api-meta dt {
  color: var(--app-muted);
}

#logCards .btn,
#checkSteps .btn,
.period-bar .btn {
  min-height: 2.5rem;
}

.settings-subnav .nav-link {
  color: var(--app-muted);
  border: 1px solid var(--app-border);
  background: var(--app-card);
}

.settings-subnav .nav-link.active {
  color: #fff;
  background: var(--app-accent);
  border-color: var(--app-accent);
}

#lastRefreshLabel {
  max-width: 14rem;
  line-height: 1.2;
}

.table-responsive,
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

@media (max-width: 991.98px) {
  .period-bar {
    flex-direction: column;
    align-items: stretch !important;
  }

  .period-bar .form-select,
  .period-bar .form-control,
  .period-bar .btn {
    width: 100% !important;
    max-width: 100%;
  }

  .period-bar .d-flex {
    width: 100%;
  }

  .app-navbar .ms-lg-auto,
  .app-navbar .global-employee-filter {
    width: 100%;
    margin-left: 0 !important;
  }

  #btnRefreshAll,
  #lastRefreshLabel {
    max-width: 100%;
  }

  .settings-subnav .nav-link {
    font-size: 0.9rem;
  }

  .table-wrap {
    max-height: none;
  }

  .stat-card .value {
    word-break: break-word;
  }
}

@media (max-width: 575.98px) {
  .btn-group {
    flex-wrap: wrap;
  }
}