/* =========================================================================
   Blora Design 2.0 - Dialog component
   Spec §12: Overlay system, §12.4: Dialog acceptance criteria
   ========================================================================= */

/* Document stylesheet: hide before the CE stamps its shadow tree.
   `:host { display: none }` only applies after upgrade/render.
   Discrete display/overlay transitions so first open and close both play. */
blora-dialog {
  transition-property: overlay, display;
  transition-duration: var(--blora-duration-base);
  transition-timing-function: var(--blora-easing-standard);
  transition-behavior: allow-discrete;
}

blora-dialog:not([open]) {
  display: none;
}

:host {
  display: none;
  opacity: 0;
  transition-property: overlay, display, opacity;
  transition-duration: var(--blora-duration-base);
  transition-timing-function: var(--blora-easing-standard);
  transition-behavior: allow-discrete;
}

/* Fill the viewport / top layer. Beat UA popover `fit-content` + `margin: auto`
   so the mask always covers the navbar, regardless of page scroll. */
:host([open]),
:host(:popover-open) {
  display: block;
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: none;
  overflow: visible;
  background: transparent;
  z-index: var(--blora-z-modal);
  opacity: 1;
}

@starting-style {
  :host([open]),
  :host(:popover-open) {
    opacity: 0;
  }
}

.blora-dialog__backdrop {
  position: absolute;
  inset: 0;
  width: auto;
  height: auto;
  margin: 0;
  padding: max(var(--blora-space-5), env(safe-area-inset-top, 0px))
    max(var(--blora-space-5), env(safe-area-inset-inline-end, 0px))
    max(var(--blora-space-5), env(safe-area-inset-bottom, 0px))
    max(var(--blora-space-5), env(safe-area-inset-inline-start, 0px));
  border: 0;
  background: transparent;
  z-index: var(--blora-z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.blora-dialog__mask {
  position: absolute;
  inset: 0;
  background: var(--blora-color-overlay-modal);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--blora-duration-base) var(--blora-easing-standard);
}

:host([open]) .blora-dialog__mask,
:host(:popover-open) .blora-dialog__mask {
  opacity: 1;
}

@starting-style {
  :host([open]) .blora-dialog__mask,
  :host(:popover-open) .blora-dialog__mask {
    opacity: 0;
  }
}

.blora-dialog__panel {
  position: relative;
  min-width: 0;
  background: var(--blora-color-surface-default);
  border-radius: var(--blora-radius-xl);
  box-shadow: var(--blora-shadow-4);
  max-width: var(--blora-dialog-max-width, 520px);
  width: 100%;
  max-height: calc(100dvh - 2 * var(--blora-space-5));
  overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  transform: scale(0.94) translateY(8px);
  transition:
    opacity var(--blora-duration-base) var(--blora-easing-standard),
    transform var(--blora-duration-base) var(--blora-easing-standard);
}

:host([open]) .blora-dialog__panel,
:host(:popover-open) .blora-dialog__panel {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--blora-duration-base) var(--blora-easing-standard),
    transform var(--blora-duration-base) var(--blora-easing-overshoot);
}

@starting-style {
  :host([open]) .blora-dialog__panel,
  :host(:popover-open) .blora-dialog__panel {
    opacity: 0;
    transform: scale(0.94) translateY(8px);
  }
}

:host([size="sm"]) .blora-dialog__panel {
  --blora-dialog-max-width: 400px;
}

:host([size="lg"]) .blora-dialog__panel {
  --blora-dialog-max-width: 800px;
}

.blora-dialog__header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--blora-space-5) var(--blora-space-6);
}

.blora-dialog__header::after {
  position: absolute;
  inset-inline: var(--blora-space-6);
  inset-block-end: 0;
  border-block-end: var(--blora-border-subtle);
  content: "";
  pointer-events: none;
}

.blora-dialog__title {
  font-family: var(--blora-font-heading);
  font-size: var(--blora-text-xl);
  color: var(--blora-color-text-primary);
  margin: 0;
}

.blora-dialog__close-button {
  color: var(--blora-color-text-subtle);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3em;
  border-radius: var(--blora-radius-sm);
  border: none;
  background: none;
  transition:
    color var(--blora-duration-fast) var(--blora-easing-standard),
    background-color var(--blora-duration-fast) var(--blora-easing-standard);

  &:hover {
    color: var(--blora-color-text-primary);
    background: var(--blora-color-surface-raised);
  }
}

.blora-dialog__body {
  padding: var(--blora-space-6);
  color: var(--blora-color-text-emphasis);
  font-size: var(--blora-text-sm);
}

.blora-dialog__footer {
  position: relative;
  padding: var(--blora-space-4) var(--blora-space-6);
  display: flex;
  justify-content: flex-end;
  gap: var(--blora-space-2);
}

.blora-dialog__footer[hidden] {
  display: none;
}

.blora-dialog__footer::before {
  position: absolute;
  inset-inline: var(--blora-space-6);
  inset-block-start: 0;
  border-block-start: var(--blora-border-subtle);
  content: "";
  pointer-events: none;
}

/* -- Responsive: stay centered; tighten padding on small viewports -- */
@media (max-width: 560px) {
  .blora-dialog__backdrop {
    align-items: center;
    justify-content: center;
    padding: max(var(--blora-space-4), env(safe-area-inset-top, 0px))
      max(var(--blora-space-3), env(safe-area-inset-inline-end, 0px))
      max(var(--blora-space-4), env(safe-area-inset-bottom, 0px))
      max(var(--blora-space-3), env(safe-area-inset-inline-start, 0px));
  }

  .blora-dialog__panel {
    max-height: min(calc(100dvh - 2 * var(--blora-space-5)), 90dvh);
    border-radius: var(--blora-radius-xl);
    margin-inline: auto;
  }

  .blora-dialog__header,
  .blora-dialog__body {
    padding: var(--blora-space-4);
  }

  .blora-dialog__footer {
    padding: var(--blora-space-3) var(--blora-space-4);
    flex-wrap: wrap;
  }

  .blora-dialog__footer .blora-button {
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  :host,
  .blora-dialog__mask,
  .blora-dialog__panel {
    transition-duration: 0.01ms !important;
  }
}