/* Shared application tokens. Bootstrap components inherit the selected theme. */
:root,
[data-bs-theme="light"] {
  color-scheme: light;
  --za-bg: #f4f7fb;
  --za-surface: #ffffff;
  --za-surface-2: #eef2f7;
  --za-border: #cbd5e1;
  --za-accent: #075bb5;
  --za-accent-hover: #06478e;
  --za-accent-rgb: 7, 91, 181;
  --za-on-accent: #ffffff;
  --za-text: #172b43;
  --za-text-muted: #53647a;
  --za-nav: rgba(255, 255, 255, .96);
  --za-shadow: 0 4px 18px rgba(23, 43, 67, .05);
  --za-hover: rgba(23, 43, 67, .06);
  --za-stripe: rgba(23, 43, 67, .03);
  --za-success: #146c43;
  --za-danger: #b42318;
}

[data-bs-theme="dark"] {
  color-scheme: 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;
  --za-accent-rgb: 62, 166, 255;
  --za-on-accent: #08111c;
  --za-nav: rgba(13, 17, 23, .96);
  --za-shadow: 0 4px 18px rgba(0, 0, 0, .18);
  --za-hover: rgba(255, 255, 255, .06);
  --za-stripe: rgba(255, 255, 255, .03);
  --za-success: #75dda0;
  --za-danger: #ff9b93;
}

:root,
[data-bs-theme] {
  --bs-body-bg: var(--za-bg);
  --bs-body-color: var(--za-text);
  --bs-secondary-color: var(--za-text-muted);
  --bs-tertiary-bg: var(--za-surface-2);
  --bs-secondary-bg: var(--za-surface-2);
  --bs-border-color: var(--za-border);
  --bs-link-color: var(--za-accent);
  --bs-link-hover-color: var(--za-accent-hover);
  --bs-link-color-rgb: var(--za-accent-rgb);
  --bs-link-hover-color-rgb: var(--za-accent-rgb);
  --bs-emphasis-color: var(--za-text);
}

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 {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
  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: var(--za-nav);
  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: var(--za-hover);
}

.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: var(--za-shadow);
}

/* Tables */
.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--za-text);
  --bs-table-striped-bg: var(--za-stripe);
  --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: var(--za-text-muted);
}

.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: var(--za-on-accent);
  --bs-btn-hover-bg: var(--za-accent-hover);
  --bs-btn-hover-border-color: var(--za-accent-hover);
  --bs-btn-hover-color: var(--za-on-accent);
  --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: var(--za-hover);
  --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: var(--za-on-accent);
  --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;
  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: var(--za-success);
  border: 1px solid rgba(63, 185, 80, .4);
}

.badge.bg-secondary {
  background-color: var(--za-hover) !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: var(--za-success);
}

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

/* 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,
.message-transcript-cell {
  min-width: 16rem;
  max-width: 28rem;
  font-size: .9rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

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

/* Shared page composition */
.app-content {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  flex: 1;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}
.app-content-wide { max-width: none; }
.app-main { padding-block: 2rem 3rem; }
.page-header { gap: 1rem; margin-bottom: 1.5rem; }
.page-header > .d-flex { flex-wrap: wrap; }
.page-header h1 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
.card-header { background: var(--za-surface-2); border-color: var(--za-border); padding: .875rem 1.25rem; }
.card-body { padding: 1.25rem; }
.form-label { font-weight: 600; font-size: .875rem; }
.form-text { color: var(--za-text-muted); }
.table > tbody td { padding-block: .8rem; }
.table a.link-light { color: var(--za-accent) !important; }
.table a.link-light:hover { color: var(--za-accent-hover) !important; }
.btn-primary { --bs-btn-active-color: var(--za-on-accent); }
.btn-outline-primary { --bs-btn-color: var(--za-accent); --bs-btn-border-color: var(--za-accent); --bs-btn-hover-bg: var(--za-accent); --bs-btn-hover-color: var(--za-on-accent); }
.skip-link { position: fixed; top: .5rem; left: 1rem; transform: translateY(-200%); z-index: 1100; padding: .75rem 1rem; background: var(--za-surface); color: var(--za-accent); border-radius: .5rem; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--za-accent); outline-offset: 3px; }
.theme-picker { width: auto; min-width: 6.5rem; }
.account-link { max-width: 13rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.eyebrow { color: var(--za-accent); font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.hero { padding-block: clamp(2rem, 6vw, 5rem); }
.hero-copy { max-width: 44rem; margin-inline: auto; }
.quick-link { display: block; height: 100%; padding: 1.25rem; border: 1px solid var(--za-border); border-radius: .75rem; background: var(--za-surface); color: var(--za-text); text-decoration: none; }
.quick-link:hover { border-color: var(--za-accent); background: var(--za-surface-2); }
.quick-link p { color: var(--za-text-muted); margin: .5rem 0 0; }
.setup-list { padding-left: 1.5rem; margin-bottom: 0; }
.setup-list li { padding: .5rem; }
.connection-status { font-size: .8rem; color: var(--za-text-muted); }
.chart-summary { font-size: .875rem; color: var(--za-text-muted); }
.chart-canvas { width: 100%; height: 110px; display: block; }
.validation-summary-valid { display: none; }
.validation-summary-errors { padding: 1rem; border: 1px solid var(--za-danger); border-radius: .5rem; margin-bottom: 1rem; }
.field-validation-error { display: block; margin-top: .25rem; }
.summary-text { white-space: pre-wrap; min-width: min(22rem, 70vw); overflow-wrap: anywhere; }
.diagnostic-detail { max-width: 40rem; max-height: 24rem; white-space: pre-wrap; overflow-wrap: anywhere; overflow: auto; }
.policy-content { max-width: 52rem; line-height: 1.75; }
.policy-content h2 { font-size: 1.25rem; margin-top: 2rem; }

@media (max-width: 1199.98px) {
  .navbar .navbar-collapse { padding: .75rem 0; }
  .navbar .nav-link { padding: .55rem .75rem; }
  .navbar .account-link { max-width: 100%; }
}
@media (max-width: 767.98px) {
  .app-main { padding-top: 1.25rem; }
  .page-header > .d-flex { width: 100%; }
  .page-header form { flex-wrap: wrap; }
  .btn { min-height: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}