/**
 * Shared loading indicators: button spinners and inline bouncing dots.
 * Used by auth flows and other async submit buttons.
 */

/* Inline bouncing dots (OTP auto-verify, status text) */
.ss-loading-dots {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  vertical-align: middle;
  margin-left: 0.15rem;
}

.ss-loading-dots span {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
  animation: ss-pulse-dot 1.1s ease-in-out infinite;
}

.ss-loading-dots span:nth-child(2) {
  animation-delay: 0.14s;
}

.ss-loading-dots span:nth-child(3) {
  animation-delay: 0.28s;
}

@keyframes ss-pulse-dot {
  0%, 100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-1.5px);
  }
}

/* Inline status row below OTP fields */
.ss-inline-status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 1.25rem;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  color: #57534e;
}

.dark .ss-inline-status {
  color: #a8a29e;
}

.ss-inline-status[hidden] {
  display: none !important;
}

.ss-inline-status.is-loading {
  color: var(--color-brand-accent-fg, #0f5a56);
}

.dark .ss-inline-status.is-loading {
  color: var(--color-brand-accent-fg, #5eead4);
}

/* Button spinner companion (hidden by default, toggled via JS) */
.ss-btn-spinner {
  display: none;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  border-radius: 9999px;
  border: 2px solid currentColor;
  border-top-color: transparent !important;
  background: transparent;
  animation: spin 0.75s linear infinite;
  transform-origin: center center;
  will-change: transform;
}

.ss-btn-spinner.is-visible {
  display: inline-block;
}

/* Border-ring spinner — reliable on iOS Safari during page transitions */
.ss-spinner {
  display: inline-block;
  flex-shrink: 0;
  box-sizing: border-box;
  border-radius: 9999px;
  border-style: solid;
  border-width: 3px;
  border-color: rgba(29, 78, 216, 0.22);
  border-top-color: #1d4ed8 !important;
  animation: spin 0.75s linear infinite;
  transform-origin: center center;
  will-change: transform;
}

.ss-spinner--sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.ss-spinner--md {
  width: 1.5rem;
  height: 1.5rem;
}

.ss-spinner--lg {
  width: 2rem;
  height: 2rem;
}

html.dark .ss-spinner,
.dark .ss-spinner {
  border-color: rgba(96, 165, 250, 0.28);
  border-top-color: #60a5fa !important;
}

/* Global full-page loader (base templates #loader)
 * Mobile Chrome/Safari: rely on explicit fixed + dvh/svh, not only Tailwind
 * inset-0. Partial cover (e.g. ~2/3 viewport) happens when layout height is
 * unstable during nav or body is position:fixed from a scroll lock. */
#loader.swiftspot-page-loader {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100% !important;
  width: 100vw !important;
  max-width: none !important;
  height: 100% !important;
  height: 100svh !important;
  height: 100dvh !important;
  min-height: 100% !important;
  min-height: 100svh !important;
  min-height: 100dvh !important;
  min-height: -webkit-fill-available;
  margin: 0 !important;
  box-sizing: border-box !important;
  z-index: var(--z-page-loader, calc(var(--z-high-modal, 999999) + 2));
  background: rgba(255, 255, 255, 0.78);
  /* Avoid large backdrop-filter over tall marketing pages (partial layer paint). */
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  pointer-events: all;
}

/* When JS pins the loader to visualViewport (keyboard / URL bar / odd scroll). */
#loader.swiftspot-page-loader.is-vv-pinned {
  bottom: auto !important;
  height: var(--swiftspot-vv-height, 100dvh) !important;
  min-height: var(--swiftspot-vv-height, 100dvh) !important;
  top: var(--swiftspot-vv-offset-top, 0px) !important;
  left: var(--swiftspot-vv-offset-left, 0px) !important;
  width: var(--swiftspot-vv-width, 100vw) !important;
  right: auto !important;
}

html.dark #loader.swiftspot-page-loader,
.dark #loader.swiftspot-page-loader {
  background: rgba(17, 24, 39, 0.78);
}

/* Touch devices: keep SVG and ring spinners on their own compositor layer */
@media (hover: none) and (pointer: coarse) {
  .ss-spinner,
  .ss-btn-spinner.is-visible,
  .step-transition-loader__spinner-ring,
  #loader .ss-spinner,
  svg.animate-spin,
  .animate-spin.rounded-full {
    -webkit-animation: spin 0.75s linear infinite;
    animation: spin 0.75s linear infinite;
    transform-origin: center center;
    will-change: transform;
  }
}

/* Buttons with label + spinner layout */
[data-btn-label] {
  /* label span inside submit buttons */
}

button[data-ss-btn-loading].is-loading,
.auth-recovery-submit.is-loading {
  pointer-events: none;
  cursor: wait;
}

@media (prefers-reduced-motion: reduce) {
  .ss-loading-dots span {
    animation: none;
    opacity: 0.7;
  }

  .ss-btn-spinner,
  .ss-spinner,
  #loader .ss-spinner,
  .step-transition-loader__spinner-ring {
    animation-duration: 0.75s !important;
    animation-iteration-count: infinite !important;
  }
}

/* Inline async state overlays (billing drawer, booking details, etc.) */
.ss-async-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  position: absolute;
  inset: 0;
  z-index: 10;
  background: var(--ss-async-overlay-bg, var(--booking-bg-primary, #fff));
}

.ss-async-overlay--padded {
  padding: 2rem;
}

.ss-async-overlay--billing {
  background: var(--billing-bg-primary, #fff);
}

.ss-async-overlay__title {
  color: var(--ss-async-overlay-title, var(--booking-text-primary, #0f172a));
  font-weight: 500;
  margin: 0;
}

.ss-async-overlay__message {
  color: var(--ss-async-overlay-message, var(--booking-text-secondary, #64748b));
  text-align: center;
  margin: 0;
}

.ss-async-overlay__message--muted {
  color: var(--billing-text-tertiary, #94a3b8);
  font-size: 0.875rem;
}

html.dark .ss-async-overlay__title,
.dark .ss-async-overlay__title {
  color: var(--ss-async-overlay-title, var(--booking-text-primary, #f8fafc));
}

html.dark .ss-async-overlay__message,
.dark .ss-async-overlay__message {
  color: var(--ss-async-overlay-message, var(--booking-text-secondary, #94a3b8));
}