/* ==========================================================================
 * modules/offers/css/plan_drawer.css
 * --------------------------------------------------------------------------
 * Owner: main-domain offers UI/UX redesign — Batch 4
 *   (plan: ~/.claude/plans/main_domain_offers_uiux_redesign.md)
 *
 * Scope: native <dialog> drawer that holds the full per-offer details
 *   (gallery, full long_description, net/USt/gross price table, sticky
 *   primary CTA). Triggered by the "Alle Details ›" link on every plan
 *   card; managed by modules/offers/js/plan_drawer.js.
 *
 * Boundaries
 *   - Reads from theme_a/tokens.css ONLY (--drawer-*, --space-*, --primary,
 *     --surface, --text, --muted, --border, --shadow, --dur-*, --ease-*,
 *     --radius, --z-modal, --focus-ring). No raw hex.
 *   - All inset / padding / margin properties use logical axes
 *     (inset-inline-end/start, padding-block, padding-inline, margin-inline)
 *     so RTL works without overrides.
 *   - prefers-reduced-motion disables the slide-in transform.
 *   - body.plan-drawer-open locks page scroll while a drawer is visible
 *     (the JS toggles this class).
 * ========================================================================== */

/* --------------------------------------------------------------------------
 * Reset native <dialog> chrome so we can paint our own surface.
 * Closed dialogs stay in the DOM but are removed from layout — display:none
 * comes from the user-agent stylesheet. We only style [open] dialogs.
 * ------------------------------------------------------------------------ */

.plan-drawer {
  inline-size: 100%;
  max-inline-size: 100%;
  block-size: auto;
  max-block-size: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  z-index: var(--drawer-z, 1100);
}

.plan-drawer:not([open]) {
  display: none;
}

/* The native ::backdrop pseudo handles dimming + click-to-dismiss. */
.plan-drawer::backdrop {
  background: var(--drawer-backdrop, rgba(10, 12, 20, 0.55));
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* Lock page scroll while any drawer is open (set by plan_drawer.js). */
body.plan-drawer-open {
  overflow: hidden;
  /* Preserve scrollbar gutter so the layout doesn't jump on open/close. */
  scrollbar-gutter: stable;
}

/* --------------------------------------------------------------------------
 * Mobile-first — drawer slides up from the bottom, max 92dvh
 * ------------------------------------------------------------------------ */

.plan-drawer {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  inset-block-start: auto;
  inline-size: 100%;
  max-block-size: var(--drawer-h-mobile, 92dvh);
  border-start-start-radius: var(--drawer-radius, 20px);
  border-start-end-radius: var(--drawer-radius, 20px);
  border-end-start-radius: 0;
  border-end-end-radius: 0;
  background: var(--surface);
  box-shadow: var(--drawer-shadow);
  overflow: hidden; /* surface clips inner scroll area */
}

@keyframes plan-drawer-slide-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes plan-drawer-slide-in {
  from { transform: translateX(var(--plan-drawer-translate-from, 100%)); }
  to   { transform: translateX(0); }
}

.plan-drawer[open] {
  animation: plan-drawer-slide-up var(--drawer-anim-dur, 200ms) var(--ease-decelerate, cubic-bezier(0, 0, 0.2, 1));
}

/* --------------------------------------------------------------------------
 * Desktop / tablet ≥768px — drawer slides in from the inline-end side
 * (right in LTR, left in RTL) and fills the full viewport height.
 * ------------------------------------------------------------------------ */

@media (min-width: 768px) {
  .plan-drawer {
    inset-inline-start: auto;
    inset-inline-end: 0;
    inset-block: 0;
    inline-size: var(--drawer-w-desktop, min(560px, 92vw));
    max-inline-size: 100vw;
    max-block-size: 100dvh;
    border-radius: 0;
  }
  .plan-drawer[open] {
    animation: plan-drawer-slide-in var(--drawer-anim-dur, 200ms) var(--ease-decelerate, cubic-bezier(0, 0, 0.2, 1));
  }
  /* In RTL the drawer rides the left edge — flip the start-from direction. */
  [dir="rtl"] .plan-drawer {
    --plan-drawer-translate-from: -100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .plan-drawer[open] {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
 * Inner layout — header (close), scrollable body, sticky CTA footer.
 * ------------------------------------------------------------------------ */

.plan-drawer__panel {
  display: grid;
  grid-template-rows: auto 1fr auto;
  block-size: 100%;
  max-block-size: inherit;
}

.plan-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-3);
  padding-inline: var(--drawer-pad, var(--space-6));
  border-block-end: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
}

.plan-drawer__eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.plan-drawer__title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-strong);
  margin: 2px 0 0 0;
}

.plan-drawer__head-text {
  min-inline-size: 0;
  flex: 1 1 auto;
}

.plan-drawer__close {
  flex: none;
  inline-size: 40px;
  block-size: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-standard),
    color var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard);
}

.plan-drawer__close:hover,
.plan-drawer__close:focus-visible {
  background: var(--surface-2);
  color: var(--text-strong);
}

.plan-drawer__close:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.plan-drawer__close-icon {
  inline-size: 18px;
  block-size: 18px;
  flex: none;
}

.plan-drawer__close-label {
  /* visually hidden — screen-reader only */
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
 * Scrollable body — gallery, description, price table.
 * ------------------------------------------------------------------------ */

.plan-drawer__body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-block: var(--space-5) var(--space-6);
  padding-inline: var(--drawer-pad, var(--space-6));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.plan-drawer__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.plan-drawer__section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-strong);
  margin: 0;
}

/* Gallery — reuses .offer-slider/* visuals from public.css but contained. */
.plan-drawer__gallery .offer-slider {
  margin: 0;
}

.plan-drawer__gallery .offer-slider__track {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-block-end: var(--space-2);
}

.plan-drawer__gallery .offer-slider__slide {
  flex: 0 0 86%;
  scroll-snap-align: start;
  border-radius: var(--radius, 16px);
  overflow: hidden;
  background: var(--surface-2);
  position: relative;
}

@media (min-width: 768px) {
  .plan-drawer__gallery .offer-slider__slide {
    flex-basis: 78%;
  }
}

.plan-drawer__gallery .offer-slider__media {
  display: block;
  inline-size: 100%;
  aspect-ratio: 4 / 3;
}

.plan-drawer__gallery .offer-zoom-trigger--thumb {
  display: block;
  inline-size: 100%;
  block-size: 100%;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.plan-drawer__gallery .offer-slider__image {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  display: block;
}

/* Single-slide variant — drawer fallback to offers.image_path or galleries
 * with exactly one image. Drop the carousel "peek next" chrome (86% width,
 * gray frame backdrop) and render a clean banner hero matching the plan-card
 * cover aspect ratio. */
.plan-drawer__gallery--single .offer-slider__track {
  display: block;
  overflow: visible;
  scroll-snap-type: none;
  padding-block-end: 0;
}

.plan-drawer__gallery--single .offer-slider__slide {
  flex: none;
  inline-size: 100%;
  background: transparent;
  border-radius: var(--radius, 16px);
}

.plan-drawer__gallery--single .offer-slider__media {
  aspect-ratio: 16 / 9;
}

.plan-drawer__gallery .offer-video-trigger {
  position: absolute;
  inset-inline-end: var(--space-3);
  inset-block-end: var(--space-3);
  inline-size: 44px;
  block-size: 44px;
  border-radius: 999px;
  border: 0;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.plan-drawer__gallery .offer-video-trigger svg {
  inline-size: 18px;
  block-size: 18px;
}

.plan-drawer__gallery .offer-video-trigger__label {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Long description — full text, no truncation. */
.plan-drawer__description {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

.plan-drawer__description strong {
  color: var(--text-strong);
  font-weight: 700;
}

.plan-drawer__description em {
  font-style: italic;
}

/* Price table — net / USt / gross. Card-style breakdown. */
.plan-drawer__price-table {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius, 16px);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.plan-drawer__price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 0.95rem;
  color: var(--text);
}

.plan-drawer__price-row--total {
  margin-block-start: var(--space-2);
  padding-block-start: var(--space-2);
  border-block-start: 1px solid var(--border);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-strong);
}

.plan-drawer__price-row dt {
  margin: 0;
  color: var(--muted);
  font-weight: 500;
}

.plan-drawer__price-row--total dt {
  color: var(--text-strong);
}

.plan-drawer__price-row dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--text-strong);
}

.plan-drawer__price-note {
  font-size: 0.85rem;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
 * Sticky footer — primary CTA always visible.
 * ------------------------------------------------------------------------ */

.plan-drawer__foot {
  padding-block: var(--space-4);
  padding-inline: var(--drawer-pad, var(--space-6));
  border-block-start: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  inset-block-end: 0;
  z-index: 1;
  /* Respect iOS safe area so the CTA never sits under the home indicator. */
  padding-block-end: max(var(--space-4), env(safe-area-inset-bottom));
}

.plan-drawer__cta {
  display: inline-flex;
  inline-size: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: 52px;
  padding-block: 14px;
  padding-inline: var(--space-5);
  border-radius: 12px;
  border: 0;
  background: var(--primary);
  color: var(--primary-contrast);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--dur-fast) var(--ease-standard),
    box-shadow var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard);
}

.plan-drawer__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(var(--primary-rgb), 0.35);
}

.plan-drawer__cta:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.plan-drawer__cta--disabled {
  background: var(--surface-2);
  color: var(--muted);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .plan-drawer__cta:hover {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
 * Print — never render drawers on paper.
 * ------------------------------------------------------------------------ */

@media print {
  .plan-drawer,
  .plan-drawer[open] {
    display: none !important;
  }
}