/* ===========================================================================
   CITY SELECTOR — cs-* namespace
   Auto-triggered after login when user has access to multiple structures.
   Self-contained: no ModalHelper dependency.
   =========================================================================== */

/* ── Overlay backdrop ───────────────────────────────────────────────────── */

.cs-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: background 360ms ease, backdrop-filter 360ms ease;
}

.cs-overlay.cs-visible {
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
}

/* ── Panel ──────────────────────────────────────────────────────────────── */

.cs-panel {
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface-base) 94%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-light);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.055),
    0 6px 22px rgba(0, 0, 0, 0.10),
    0 24px 60px rgba(0, 0, 0, 0.14),
    inset 0 1.5px 0 rgba(255, 255, 255, 0.95);
  padding: 36px 28px 28px;
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition: opacity 360ms ease, transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

.cs-overlay.cs-visible .cs-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ── Header ─────────────────────────────────────────────────────────────── */

.cs-header {
  margin-bottom: 24px;
}

.cs-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--info);
  margin-bottom: 8px;
}

.cs-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.cs-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ── Cards list ─────────────────────────────────────────────────────────── */

.cs-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Card ───────────────────────────────────────────────────────────────── */

.cs-card {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-raised) 70%, transparent);
  cursor: pointer;
  text-align: left;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  opacity: 0;
  transform: translateY(8px);
  animation: cs-card-in 380ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition:
    transform 250ms cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 220ms ease,
    border-color 200ms ease,
    background 200ms ease;
}

@keyframes cs-card-in {
  to { opacity: 1; transform: translateY(0); }
}

.cs-card:hover {
  border-color: var(--primary-alpha-35);
  background: color-mix(in srgb, var(--surface-raised) 92%, transparent);
  box-shadow: 0 4px 16px var(--primary-alpha-18), 0 1px 4px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px) scale(1.005);
}

.cs-card:active {
  transform: translateY(0) scale(0.988);
  transition-duration: 80ms;
}

.cs-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ── Card logo ──────────────────────────────────────────────────────────── */

.cs-card-logo {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--primary-alpha-10);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cs-card-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 6px;
}

.cs-initial {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.03em;
}

/* ── Card body ──────────────────────────────────────────────────────────── */

.cs-card-body {
  flex: 1;
  min-width: 0;
}

.cs-card-name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cs-card-code {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

/* ── Card arrow ─────────────────────────────────────────────────────────── */

.cs-card-arrow {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--primary-alpha-10);
  color: var(--primary);
  font-size: 0.75rem;
  opacity: 0.7;
  transition:
    transform 250ms cubic-bezier(0.34, 1.56, 0.64, 1),
    background 200ms ease,
    opacity 200ms ease;
}

.cs-card:hover .cs-card-arrow {
  transform: translateX(3px);
  background: var(--primary-alpha-20);
  opacity: 1;
}

/* ── Dark mode ──────────────────────────────────────────────────────────── */

/* Panel tokens auto-invert; override only shadows (must stay dark) */
[data-theme="dark"] .cs-panel {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 6px 22px rgba(0, 0, 0, 0.40),
    0 24px 60px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

/* ── Mobile ─────────────────────────────────────────────────────────────── */

@media (max-width: 520px) {
  .cs-overlay { padding: 16px; align-items: flex-end; }

  .cs-panel {
    max-width: 100%;
    max-height: 85vh;
    padding: 28px 20px 24px;
    border-radius: 20px 20px 16px 16px;
    transform: translateY(40px) scale(1);
  }

  .cs-overlay.cs-visible .cs-panel {
    transform: translateY(0) scale(1);
  }

  .cs-title { font-size: 1.5rem; }
}