/* ==========================================================================
   COMPONENTS — buttons, controls, media, cards, forms, slider, accordion
   ========================================================================== */

/* ---- Buttons ---------------------------------------------------------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  --btn-fill: var(--fg);
  --btn-fill-fg: var(--on-fg);
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 52px;
  padding: 0 1.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.btn::before {
  content: '';
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--btn-fill);
  transform: translateY(101%);
  transition: transform 520ms var(--ease-out);
}
.btn__label { position: relative; display: inline-block; overflow: hidden; }
.btn__label > span { display: block; transition: transform 520ms var(--ease-out); }
.btn__label::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 100%;
  transition: transform 520ms var(--ease-out);
}
.btn__icon { width: 1em; height: 1em; flex: none; transition: transform 520ms var(--ease-out); }

@media (hover: hover) {
  .btn:hover { color: var(--btn-fill-fg); border-color: var(--btn-fill); }
  .btn:hover::before { transform: translateY(0); }
  .btn:hover .btn__label > span,
  .btn:hover .btn__label::after { transform: translateY(-100%); }
  .btn:hover .btn__icon { transform: translateX(3px); }
}
.btn:active { transform: scale(0.98); }

.btn--solid { --btn-bg: var(--fg); --btn-fg: var(--on-fg); --btn-fill: var(--accent); --btn-fill-fg: var(--c-black); border-color: var(--fg); }
[data-scene='light'] .btn--solid, [data-scene='soft'] .btn--solid,
:root[data-theme='light'] .btn--solid { --btn-fill: var(--c-graphite); --btn-fill-fg: var(--c-white); }
:root[data-theme='dark'] .btn--solid { --btn-fill: var(--c-ice); --btn-fill-fg: var(--c-black); }
.btn--sm { min-height: 44px; padding: 0 1.15rem; font-size: var(--fs-sm); }
.btn--lg { min-height: 60px; padding: 0 2rem; font-size: var(--fs-base); }
.btn--block { width: 100%; }
.btn[disabled], .btn[aria-disabled='true'] { opacity: 0.55; pointer-events: none; }

.btn .spinner { display: none; }
.btn.is-loading .spinner { display: block; }
.btn.is-loading .btn__icon { display: none; }
.spinner {
  width: 1.1em; height: 1.1em;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Text link with animated arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
  font-size: var(--fs-sm);
  padding-block: 0.6rem;
  background: linear-gradient(currentColor, currentColor) 0 calc(100% - 0.35rem) / 0 1px no-repeat;
  transition: background-size 500ms var(--ease-out);
}
.link-arrow svg { width: 1em; height: 1em; transition: transform var(--dur) var(--ease-out); }
.link-arrow:hover { background-size: 100% 1px; }
.link-arrow:hover svg { transform: translateX(4px); }

/* Icon-only round button */
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  transition: background-color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.icon-btn svg { width: 18px; height: 18px; }
@media (hover: hover) { .icon-btn:hover { border-color: var(--fg); } }

/* ---- Language switch -------------------------------------------------- */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
}
.lang-switch button {
  min-width: 40px;
  min-height: 36px;
  padding: 0 0.6rem;
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.lang-switch button[aria-pressed='true'] { background: var(--fg); color: var(--bg); }
@media (hover: hover) { .lang-switch button:not([aria-pressed='true']):hover { color: var(--fg); } }

/* Theme toggle shows one of three glyphs */
.theme-toggle .ico { display: none; }
.theme-toggle[data-mode='auto'] .ico-auto,
.theme-toggle[data-mode='light'] .ico-light,
.theme-toggle[data-mode='dark'] .ico-dark { display: block; }

/* Tooltip for icon buttons */
[data-tip] { position: relative; }
@media (hover: hover) {
  [data-tip]::after {
    content: attr(data-tip);
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    translate: -50% -4px;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    background: var(--fg);
    color: var(--bg);
    font-size: var(--fs-xs);
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--dur-fast) var(--ease-out), translate var(--dur-fast) var(--ease-out);
  }
  [data-tip]:hover::after, [data-tip]:focus-visible::after { opacity: 1; translate: -50% 0; }
}

/* ---- Chips / filters -------------------------------------------------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.chip {
  min-height: 44px;
  padding: 0 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--muted);
  transition: color var(--dur) var(--ease-out), background-color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.chip[aria-pressed='true'] { background: var(--fg); border-color: var(--fg); color: var(--bg); }
@media (hover: hover) { .chip:not([aria-pressed='true']):hover { color: var(--fg); border-color: var(--fg); } }
.chip .count { opacity: 0.6; margin-left: 0.35rem; font-variant-numeric: tabular-nums; }

/* ---- Tags / badges ---------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 26px;
  padding: 0 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.tag--demo { border-style: dashed; }
.tag--demo::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.tag--solid { background: var(--fg); color: var(--bg); border-color: var(--fg); }

/* ---- Media masks ------------------------------------------------------ */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center;
}
.media--tall { aspect-ratio: 4 / 5; }
.media--wide { aspect-ratio: 16 / 10; }
.media--square { aspect-ratio: 1; }

/* ---- Service card ----------------------------------------------------- */
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  color: inherit;
}
.service-card .media { aspect-ratio: 4 / 5; }
.service-card .media img { transition: transform 1.1s var(--ease-out), filter 1.1s var(--ease-out); }
.service-card__meta { display: flex; justify-content: space-between; align-items: baseline; gap: var(--sp-3); }
.service-card h3 { font-size: var(--fs-xl); }
.service-card p { color: var(--muted); font-size: var(--fs-sm); max-width: 34ch; }
.service-card__more {
  position: absolute;
  right: var(--sp-4); top: var(--sp-4);
  width: 48px; height: 48px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--c-white);
  color: var(--c-black);
  transform: scale(0.6) rotate(-45deg);
  opacity: 0;
  transition: transform 600ms var(--ease-out), opacity 400ms var(--ease-out);
}
.service-card__more svg { width: 18px; height: 18px; }
@media (hover: hover) {
  .service-card:hover .media img { transform: scale(1.06); }
  .service-card:hover .service-card__more { transform: none; opacity: 1; }
}
.service-card:focus-visible { outline-offset: 6px; }

/* ---- Before / after comparison --------------------------------------- */
.ba {
  --pos: 50%;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 10;
  background: var(--surface);
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
  cursor: ew-resize;
}
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.ba__before { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba__before img.sim-stain { filter: sepia(0.55) saturate(1.25) hue-rotate(-12deg) brightness(0.9) contrast(0.95); }
.ba__before img.sim-dull { filter: sepia(0.35) saturate(0.7) brightness(0.86) contrast(0.92); }
.ba__divider {
  position: absolute;
  top: 0; bottom: 0;
  left: var(--pos);
  width: 2px;
  margin-left: -1px;
  background: var(--c-white);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
  pointer-events: none;
}
.ba__handle {
  position: absolute;
  top: 50%;
  left: var(--pos);
  width: 56px; height: 56px;
  margin: -28px 0 0 -28px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--c-white);
  color: var(--c-black);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  cursor: grab;
  transition: transform var(--dur) var(--ease-out);
  touch-action: none;
}
.ba__handle svg { width: 22px; height: 22px; }
.ba.is-dragging .ba__handle { transform: scale(0.92); cursor: grabbing; }
.ba__handle:focus-visible { outline: 3px solid var(--c-ice); outline-offset: 4px; }
.ba__label {
  position: absolute;
  bottom: var(--sp-4);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(8, 8, 8, 0.66);
  color: var(--c-white);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
}
.ba__label--before { left: var(--sp-4); }
.ba__label--after { right: var(--sp-4); }
.ba__demo {
  position: absolute;
  top: var(--sp-4); left: var(--sp-4);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: var(--c-white);
  color: var(--c-black);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
}

/* ---- Forms ------------------------------------------------------------ */
.field { display: grid; gap: var(--sp-2); }
.field__label { font-size: var(--fs-sm); font-weight: 500; }
.field__label .req { color: var(--accent); margin-left: 2px; }
.field__hint { font-size: var(--fs-xs); color: var(--muted); }
.input, .select, .textarea {
  width: 100%;
  min-height: 56px;
  padding: 0 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem; /* ≥16px prevents iOS zoom */
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
  appearance: none;
  -webkit-appearance: none;
}
.textarea { padding-block: 0.9rem; min-height: 120px; resize: vertical; line-height: 1.5; }
.select {
  padding-right: 2.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='1.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 18px;
}
.input:hover, .select:hover, .textarea:hover { border-color: color-mix(in srgb, var(--fg) 40%, transparent); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--fg); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent); }
.field.is-invalid .input,
.field.is-invalid .select,
.field.is-invalid .textarea { border-color: #c4352b; }
[data-scene='dark'] .field.is-invalid .input,
:root[data-theme='dark'] .field.is-invalid .input { border-color: #ff7a6e; }
.field__error {
  display: none;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-sm);
  color: #b3261e;
}
[data-scene='dark'] .field__error, :root[data-theme='dark'] .field__error { color: #ff9a90; }
.field.is-invalid .field__error { display: flex; }
.field__error::before { content: '!'; display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; background: currentColor; color: var(--bg); font-size: 11px; font-weight: 700; flex: none; }
input[type='date'].input { padding-right: 1rem; }
input[type='date']::-webkit-calendar-picker-indicator { opacity: 0.6; cursor: pointer; }

/* Segmented radio group */
.segmented { display: flex; flex-wrap: wrap; gap: var(--sp-2); border: 0; padding: 0; }
.segmented legend { margin-bottom: var(--sp-2); }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.segmented span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.segmented small { color: inherit; opacity: 0.6; font-weight: 400; }
.segmented input:checked + span { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 3px; }

.checkbox { display: flex; gap: var(--sp-3); align-items: flex-start; font-size: var(--fs-sm); line-height: 1.5; cursor: pointer; }
.checkbox input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 22px; height: 22px;
  margin-top: 1px;
  border: 1px solid color-mix(in srgb, var(--fg) 45%, transparent);
  border-radius: 6px;
  display: grid; place-items: center;
  background: var(--bg);
  cursor: pointer;
}
.checkbox input::after { content: ''; width: 11px; height: 6px; border: 2px solid var(--bg); border-top: 0; border-right: 0; transform: rotate(-45deg) translate(1px, -1px) scale(0); transition: transform var(--dur-fast) var(--ease-out); }
.checkbox input:checked { background: var(--fg); border-color: var(--fg); }
.checkbox input:checked::after { transform: rotate(-45deg) translate(1px, -1px) scale(1); }
.checkbox a { text-decoration: underline; text-underline-offset: 3px; }

/* Search field */
.search { position: relative; }
.search svg { position: absolute; left: 1.1rem; top: 50%; translate: 0 -50%; width: 18px; height: 18px; color: var(--muted); pointer-events: none; }
.search .input { padding-left: 3rem; border-radius: 999px; }

/* ---- Accordion -------------------------------------------------------- */
.accordion { border-top: 1px solid var(--line); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-5);
  padding-block: var(--sp-5);
  cursor: pointer;
  font-size: var(--fs-lg);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary .plus { position: relative; width: 18px; height: 18px; flex: none; }
.accordion summary .plus::before,
.accordion summary .plus::after { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 1.5px; background: currentColor; transition: transform var(--dur) var(--ease-out); }
.accordion summary .plus::after { transform: rotate(90deg); }
.accordion details[open] summary .plus::after { transform: rotate(0); }
.accordion .accordion__body { overflow: hidden; }
.accordion .accordion__body > div { padding-bottom: var(--sp-5); color: var(--muted); max-width: 68ch; }

/* ---- Price rows ------------------------------------------------------- */
.price-list { list-style: none; padding: 0; border-top: 1px solid var(--line); }
.price-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-2) var(--sp-5);
  align-items: baseline;
  padding-block: var(--sp-5);
  border-bottom: 1px solid var(--line);
}
.price-row__title { font-size: var(--fs-lg); font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; }
.price-row__note { grid-column: 1; font-size: var(--fs-sm); color: var(--muted); }
.price-row__price { grid-row: 1; grid-column: 2; font-size: var(--fs-lg); font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 500; }
.price-row__price small { font-size: var(--fs-xs); color: var(--muted); font-weight: 400; margin-right: 0.3rem; }
.price-row__actions { grid-column: 2; grid-row: 2; justify-self: end; }

/* ---- Hotspots --------------------------------------------------------- */
.hotspot {
  position: absolute;
  width: 44px; height: 44px;
  margin: -22px 0 0 -22px;
  border-radius: 50%;
  display: grid; place-items: center;
  z-index: 2;
}
.hotspot__dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--c-white);
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.18);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.hotspot::before {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.6);
  animation: pulse 2.8s var(--ease-out) infinite;
}
.hotspot[aria-expanded='true'] .hotspot__dot,
.hotspot:hover .hotspot__dot { transform: scale(1.3); box-shadow: 0 0 0 10px rgba(169, 210, 234, 0.3); background: var(--c-ice); }
@keyframes pulse { 0% { transform: scale(0.6); opacity: 1; } 80%, 100% { transform: scale(1.6); opacity: 0; } }
.hotspot-panel {
  position: absolute;
  z-index: 3;
  width: min(280px, 72vw);
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--radius);
  background: var(--c-white);
  color: var(--c-black);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  font-size: var(--fs-sm);
  line-height: 1.5;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s linear var(--dur);
}
.hotspot-panel.is-open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.hotspot-panel h3 { font-size: var(--fs-base); font-weight: 600; letter-spacing: -0.01em; margin-bottom: 0.3rem; }
.hotspot-panel p { color: #4a4a48; }

/* ---- Empty state ------------------------------------------------------ */
.empty {
  display: grid;
  justify-items: start;
  gap: var(--sp-4);
  padding: var(--sp-7) var(--sp-6);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
}
.empty h3 { font-size: var(--fs-xl); }
.empty p { color: var(--muted); max-width: 52ch; }

/* ---- Info list (definition rows) ------------------------------------- */
.info-list { display: grid; border-top: 1px solid var(--line); }
.info-list > div { display: grid; grid-template-columns: minmax(120px, 0.4fr) 1fr; gap: var(--sp-4); padding-block: var(--sp-4); border-bottom: 1px solid var(--line); }
.info-list dt { color: var(--muted); font-size: var(--fs-sm); }
.info-list dd { margin: 0; }
.placeholder-val { color: var(--muted); font-style: italic; }

/* ---- Status (open now) ----------------------------------------------- */
.status { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--fs-sm); font-weight: 500; }
.status::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: #9a9a96; }
.status.is-open::before { background: #3fb27f; box-shadow: 0 0 0 4px rgba(63, 178, 127, 0.18); }

/* Promotional price */
.price-promo { display: inline-flex; align-items: center; min-height: 22px; padding: 0 0.5rem; border-radius: 999px; background: var(--accent); color: var(--bg); font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; vertical-align: middle; }
.price-old { color: var(--muted); font-size: 0.85em; font-weight: 400; }

/* Real-time slot picker */
.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: var(--sp-2); }
.slots span { justify-content: center; width: 100%; font-variant-numeric: tabular-nums; }

.pill-list small { margin-right: 0.25rem; }

/* ---- Language switch: sliding thumb ----------------------------------- */
.lang-switch { position: relative; isolation: isolate; }
.lang-switch::before {
  content: '';
  position: absolute;
  z-index: -1;
  top: 3px; bottom: 3px; left: 3px;
  width: calc((100% - 6px) / 2);
  border-radius: 999px;
  background: var(--fg);
  transform: translateX(calc(var(--i, 0) * 100%));
  transition: transform 520ms cubic-bezier(0.34, 1.3, 0.5, 1), background-color var(--dur) var(--ease-out);
}
.lang-switch button { flex: 1 1 0; min-width: 48px; background: transparent !important; letter-spacing: 0.06em; }
.lang-switch button[aria-pressed='true'] { color: var(--bg); }

/* ---- Language change: soft cross-fade of the page text ---------------- */
main, .site-footer, .header__nav, .site-menu__inner, .action-bar__btn span {
  transition: opacity 240ms var(--ease-in-out);
}
html.lang-out main, html.lang-out .site-footer, html.lang-out .header__nav,
html.lang-out .site-menu__inner, html.lang-out .action-bar__btn span { opacity: 0; }
html.lang-in main, html.lang-in .site-footer, html.lang-in .header__nav,
html.lang-in .site-menu__inner, html.lang-in .action-bar__btn span { transition-duration: 500ms; }
html.lang-in h1, html.lang-in h2, html.lang-in .lead { animation: lang-rise 600ms var(--ease-out) both; }
@keyframes lang-rise { from { opacity: 0; transform: translateY(10px); } }
@media (prefers-reduced-motion: reduce) {
  html.lang-out main, html.lang-out .site-footer { opacity: 1; }
}