:root {
  --dt-ink: #15202b;
  --dt-muted: #5b6b7c;
  --dt-line: #d7dee7;
  --dt-surface: #eef2f7;
  --dt-panel: #ffffff;
  --dt-accent: #0d6efd;
  --dt-accent-2: #0a58ca;
  --dt-sidebar: #0c1929;
  --dt-sidebar-2: #061018;
  --dt-sidebar-width: 280px;
  --dt-success: #198754;
  --dt-danger: #dc3545;
  --dt-warning: #ffc107;
  /* WebSms GORSELLIK.md alias token’ları */
  --ws-ink: var(--dt-ink);
  --ws-muted: var(--dt-muted);
  --ws-line: var(--dt-line);
  --ws-surface: var(--dt-surface);
  --ws-panel: var(--dt-panel);
  --ws-accent: var(--dt-accent);
  --ws-accent-2: var(--dt-accent-2);
  --ws-sidebar: var(--dt-sidebar);
  --ws-sidebar-2: var(--dt-sidebar-2);
  --ws-sidebar-width: var(--dt-sidebar-width);
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 768px) {
  html { font-size: 16px; }
}

body {
  margin: 0;
  color: var(--dt-ink);
  background: var(--dt-surface);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
}

.app-shell {
  display: grid;
  grid-template-columns: var(--dt-sidebar-width) 1fr;
  column-gap: 0;
  min-height: 100vh;
  transition: grid-template-columns .22s ease;
}

@media (min-width: 901px) {
  .app-shell {
    column-gap: 1.25rem;
  }
}

.app-shell.sidebar-hidden,
html.sidebar-hidden-init .app-shell {
  --dt-sidebar-width: 0px;
}

.app-sidebar {
  background: linear-gradient(180deg, var(--dt-sidebar), var(--dt-sidebar-2));
  color: #fff;
  padding: 1rem .85rem;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: opacity .18s ease;
}

.app-shell.sidebar-hidden .app-sidebar,
html.sidebar-hidden-init .app-sidebar {
  opacity: 0;
  pointer-events: none;
}

.sidebar-brand {
  display: flex;
  gap: .85rem;
  align-items: center;
  margin-bottom: .75rem;
  padding: .5rem;
  flex-shrink: 0;
  color: #fff;
}

.sidebar-brand:hover { color: #fff; opacity: .95; }

.brand-mark {
  width: 3rem;
  height: 3rem;
  border-radius: .9rem;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--dt-accent), var(--dt-accent-2));
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-brand-text small {
  display: block;
  opacity: .7;
  color: rgba(255, 255, 255, .75);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: .15rem;
}

.sidebar-nav .nav-link {
  color: rgba(255, 255, 255, .88);
  border-radius: .7rem;
  padding: .65rem .85rem;
  display: flex;
  gap: .65rem;
  align-items: center;
  text-decoration: none;
  font-size: .92rem;
}

.sidebar-nav .nav-link i {
  width: 1.15rem;
  text-align: center;
  opacity: .9;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
  background: rgba(255, 255, 255, .1);
  color: #fff;
}

.nav-section {
  margin: 1rem 0 .35rem;
  padding: 0 .85rem;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .55;
}

.app-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
  background: var(--dt-surface);
}

.app-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem 1rem 1.75rem;
  background: var(--dt-panel);
  border-bottom: 1px solid var(--dt-line);
  gap: 1rem;
}

.app-content { padding: 1.25rem 0; flex: 1; }

.app-footer {
  margin-top: auto;
  background: #0c1929;
  color: #fff;
  padding: 1rem 0;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1035;
  background: rgba(15, 23, 42, .45);
  border: 0;
  padding: 0;
  cursor: pointer;
}

.stat-card {
  background: var(--dt-panel);
  border: 1px solid var(--dt-line);
  border-radius: 1rem;
  padding: 1.15rem 1.25rem;
  box-shadow: 0 8px 24px rgba(15, 32, 43, .06);
  height: 100%;
}

.stat-card .label {
  color: var(--dt-muted);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.stat-card .value {
  font-size: 1.65rem;
  font-weight: 700;
  margin-top: .35rem;
}

.panel-card {
  background: var(--dt-panel);
  border: 1px solid var(--dt-line);
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgba(15, 32, 43, .05);
  overflow: hidden;
}

.panel-card .panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--dt-line);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.panel-card .panel-body { padding: 1rem 1.25rem; }

.table-dt thead th {
  background: #eef3f8;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--dt-muted);
  border-bottom: 1px solid var(--dt-line);
}

.badge-durum-alacakli { background: #d1e7dd; color: #0f5132; }
.badge-durum-borclu { background: #f8d7da; color: #842029; }
.badge-durum-kapali { background: #e2e3e5; color: #41464b; }

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 20% 20%, #1a365d, #061018 55%);
  padding: 1.5rem;
}

.auth-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}

.swal2-container { z-index: 2000 !important; }

.select2-container--bootstrap-5 .select2-selection {
  min-height: calc(1.5em + .75rem + 2px);
  border-color: var(--dt-line);
  font-size: inherit;
}

.select2-container--bootstrap-5.select2-container--focus .select2-selection,
.select2-container--bootstrap-5.select2-container--open .select2-selection {
  border-color: var(--dt-accent);
  box-shadow: 0 0 0 .2rem rgba(13, 110, 253, .15);
}

.select2-container--bootstrap-5 .select2-selection--single .select2-selection__rendered {
  line-height: 1.5;
  padding-top: .375rem;
  padding-bottom: .375rem;
}

select.form-select-sm + .select2-container--bootstrap-5 .select2-selection {
  min-height: calc(1.5em + .5rem + 2px);
  font-size: .875rem;
}

.select2-container--bootstrap-5 .select2-dropdown {
  border-color: var(--dt-line);
  z-index: 1056;
}

/* —— Filtre paneli (WebSMS contact-filter-panel ile aynı UX) —— */
.dt-filter-panel {
  border: 1px solid var(--dt-line);
  border-radius: .75rem;
  background: linear-gradient(180deg, #f8fafc, #fff);
  overflow: hidden;
}

.dt-filter-panel__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .85rem 1rem;
  border: 0;
  background: transparent;
  font-weight: 600;
  color: var(--dt-ink);
  cursor: pointer;
}

.dt-filter-panel__toggle .dt-filter-chevron {
  transition: transform .2s ease;
  font-size: .85rem;
  opacity: .65;
}

.dt-filter-panel__toggle:not(.collapsed) .dt-filter-chevron {
  transform: rotate(180deg);
}

.dt-filter-panel__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--dt-line);
}

.dt-filter-panel__body.show {
  padding-top: 1rem;
}

.dt-filter-chips .badge {
  font-weight: 500;
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1040;
    width: min(288px, 88vw);
    box-shadow: 8px 0 32px rgba(0, 0, 0, .2);
    transform: translateX(0);
    transition: transform .22s ease;
  }
  .app-shell.sidebar-hidden .app-sidebar,
  html.sidebar-hidden-init .app-sidebar {
    transform: translateX(-105%);
    opacity: 1;
    pointer-events: none;
  }
  html:not(.sidebar-ready) .app-sidebar {
    transform: translateX(-105%);
    pointer-events: none;
  }
  .app-shell:not(.sidebar-hidden) .sidebar-backdrop { display: block; }
}