/* TransmissionIQ dark theme
   Overrides Bootstrap's dark palette with a deeper, more refined surface set. */

:root,
[data-bs-theme="dark"] {
  --za-bg: #0d1117;
  --za-surface: #161b22;
  --za-surface-2: #1c2230;
  --za-border: #2a313c;
  --za-accent: #3ea6ff;
  --za-accent-hover: #63b8ff;
  --za-text: #e6edf3;
  --za-text-muted: #9aa7b4;

  --bs-body-bg: var(--za-bg);
  --bs-body-color: var(--za-text);
  --bs-secondary-color: var(--za-text-muted);
  --bs-border-color: var(--za-border);
  --bs-link-color: var(--za-accent);
  --bs-link-hover-color: var(--za-accent-hover);
  --bs-link-color-rgb: 62, 166, 255;
  --bs-link-hover-color-rgb: 99, 184, 255;
  --bs-emphasis-color: #ffffff;
}

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

@media (min-width: 768px) {
  html {
    font-size: 15px;
  }
}

/* Compact desktop-first container: keep content from spreading too wide */
.app-container {
  max-width: 1100px;
}

.app-main {
  padding-top: 1.5rem;
}

body {
  margin-bottom: 64px;
  background-color: var(--za-bg);
  background-image: radial-gradient(1200px 600px at 50% -200px, rgba(62, 166, 255, .10), transparent 70%);
  background-attachment: fixed;
  color: var(--za-text);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -.01em;
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Navigation */
.navbar {
  background-color: rgba(13, 17, 23, .88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding-top: .4rem;
  padding-bottom: .4rem;
}

.navbar .navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--za-text);
}

.navbar .brand-accent,
.brand-accent {
  color: var(--za-accent);
}

.navbar .brand-mark {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background-color: var(--za-accent);
  box-shadow: 0 0 0 .25rem rgba(62, 166, 255, .18);
}

.navbar .nav-link {
  color: var(--za-text-muted);
  border-radius: .375rem;
  padding: .375rem .75rem;
  transition: color .15s ease, background-color .15s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--za-text);
  background-color: rgba(255, 255, 255, .06);
}

.navbar .nav-link.active {
  color: var(--za-text);
  background-color: rgba(62, 166, 255, .14);
}

@media (max-width: 767.98px) {
  .navbar .navbar-collapse {
    padding: .5rem 0;
  }

  .navbar .nav-link {
    padding: .55rem .75rem;
  }
}

.navbar .nav-link.btn-link {
  text-decoration: none;
}

/* Surfaces */
.card,
.list-group-item,
.modal-content,
.dropdown-menu {
  background-color: var(--za-surface);
  border-color: var(--za-border);
}

.card {
  border-radius: .75rem;
  box-shadow: 0 .5rem 1.5rem rgba(0, 0, 0, .35);
}

/* Tables */
.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--za-text);
  --bs-table-striped-bg: rgba(255, 255, 255, .03);
  --bs-table-striped-color: var(--za-text);
  --bs-table-hover-bg: rgba(62, 166, 255, .08);
  --bs-table-hover-color: var(--za-text);
  --bs-table-border-color: var(--za-border);
}

.table > thead th {
  background-color: var(--za-surface-2);
  color: var(--za-text-muted);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-bottom-color: var(--za-border);
  padding: .6rem .875rem;
  white-space: nowrap;
}

.table > tbody td {
  padding: .55rem .875rem;
  border-color: var(--za-border);
}

.table-wrap {
  background-color: var(--za-surface);
  border: 1px solid var(--za-border);
  border-radius: .75rem;
  overflow: hidden;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap > .table {
  margin-bottom: 0;
}

/* Forms */
.form-control,
.form-select {
  background-color: var(--za-surface-2);
  border-color: var(--za-border);
  color: var(--za-text);
}

.form-control:focus,
.form-select:focus {
  background-color: var(--za-surface-2);
  border-color: var(--za-accent);
  color: var(--za-text);
}

.form-control::placeholder {
  color: #6e7b8a;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-check-input:focus, .form-select:focus {
  box-shadow: 0 0 0 .2rem rgba(62, 166, 255, .35);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* Buttons */
.btn {
  border-radius: .5rem;
  font-weight: 500;
}

.btn-primary {
  --bs-btn-bg: var(--za-accent);
  --bs-btn-border-color: var(--za-accent);
  --bs-btn-color: #08111c;
  --bs-btn-hover-bg: var(--za-accent-hover);
  --bs-btn-hover-border-color: var(--za-accent-hover);
  --bs-btn-hover-color: #08111c;
  --bs-btn-active-bg: var(--za-accent-hover);
  --bs-btn-active-border-color: var(--za-accent-hover);
}

.btn-outline-secondary {
  --bs-btn-color: var(--za-text-muted);
  --bs-btn-border-color: var(--za-border);
  --bs-btn-hover-bg: rgba(255, 255, 255, .06);
  --bs-btn-hover-border-color: var(--za-accent);
  --bs-btn-hover-color: var(--za-text);
}

/* Pagination */
.pagination {
  --bs-pagination-bg: var(--za-surface);
  --bs-pagination-color: var(--za-text);
  --bs-pagination-border-color: var(--za-border);
  --bs-pagination-hover-bg: var(--za-surface-2);
  --bs-pagination-hover-color: var(--za-text);
  --bs-pagination-hover-border-color: var(--za-border);
  --bs-pagination-active-bg: var(--za-accent);
  --bs-pagination-active-border-color: var(--za-accent);
  --bs-pagination-active-color: #08111c;
  --bs-pagination-disabled-bg: var(--za-surface);
  --bs-pagination-disabled-border-color: var(--za-border);
}

/* Media */
audio {
  width: 100%;
  min-width: 12rem;
  max-width: 22rem;
  height: 2.25rem;
  filter: invert(.92) hue-rotate(180deg);
  border-radius: .5rem;
}

@media (max-width: 575.98px) {
  audio {
    min-width: 10rem;
  }
}

/* Misc */
hr {
  border-color: var(--za-border);
  opacity: 1;
}

.text-muted {
  color: var(--za-text-muted) !important;
}

.empty-state {
  background-color: var(--za-surface);
  border: 1px dashed var(--za-border);
  border-radius: .75rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--za-text-muted);
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: 1.25rem;
  padding-bottom: .875rem;
  border-bottom: 1px solid var(--za-border);
}

.page-header h1 {
  margin-bottom: 0;
}

.page-header .page-subtitle {
  margin: .25rem 0 0;
  color: var(--za-text-muted);
  font-size: .875rem;
}

@media (max-width: 575.98px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Badges */
.badge {
  font-weight: 600;
  letter-spacing: .02em;
  padding: .35em .6em;
}

.badge.bg-success {
  background-color: rgba(63, 185, 80, .18) !important;
  color: #56d364;
  border: 1px solid rgba(63, 185, 80, .4);
}

.badge.bg-secondary {
  background-color: rgba(255, 255, 255, .06) !important;
  color: var(--za-text-muted);
  border: 1px solid var(--za-border);
}

/* Alerts */
.alert-success {
  --bs-alert-bg: rgba(63, 185, 80, .12);
  --bs-alert-border-color: rgba(63, 185, 80, .4);
  --bs-alert-color: #56d364;
}

.alert-danger {
  --bs-alert-bg: rgba(248, 81, 73, .12);
  --bs-alert-border-color: rgba(248, 81, 73, .4);
  --bs-alert-color: #ff7b72;
}

/* Metrics */
.stat-card .stat-label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--za-text-muted);
}

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-top: .25rem;
}

.stat-card .stat-hint {
  margin-top: .25rem;
  font-size: .8rem;
  color: var(--za-text-muted);
}

@media (max-width: 575.98px) {
  .stat-card .stat-value {
    font-size: 1.35rem;
  }
}

/* Playback table */
.transcript-cell {
  min-width: 16rem;
  max-width: 28rem;
  font-size: .9rem;
  line-height: 1.45;
}

/* Compact inline action groups (table row buttons) */
.row-actions {
  display: inline-flex;
  gap: .375rem;
  white-space: nowrap;
}