/* --------------------------------------------------------------------------
   Layout Grid Flip
   Premium nature gallery — GSAP Flip Large (3-col) ↔ Small (5-col)
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: #f3efe8;
  background-color: #0c0b0a;
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -10%, rgba(90, 78, 62, 0.28), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 100%, rgba(45, 52, 48, 0.2), transparent 50%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100svh;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  max-width: 100%;
  user-select: none;
  -webkit-user-drag: none;
}

/* --------------------------------------------------------------------------
   Page shell
   -------------------------------------------------------------------------- */

.page {
  width: 100%;
  min-height: 100svh;
  font-size: clamp(10px, 1.05vw, 16px);
}

.layout-group {
  width: 100%;
  max-width: 90em;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Layout toggle buttons
   -------------------------------------------------------------------------- */

.layout-buttons {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 0.5em;
  padding: 1.25em 1em 2.5em;
}

.layout-btn {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 0.5em;
  padding: 0.75em 1.25em;
  border-radius: 100em;
  background-color: rgba(255, 255, 255, 0.06);
  color: rgba(243, 239, 232, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition:
    color 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease,
    transform 0.2s ease,
    box-shadow 0.25s ease;
}

.layout-btn:hover {
  transform: translateY(-1px);
  color: #f3efe8;
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.14);
}

.layout-btn:active {
  transform: translateY(0);
}

.layout-btn.is--active {
  color: #0c0b0a;
  background-color: #e8e0d4;
  border-color: #e8e0d4;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.layout-btn:focus-visible {
  outline: 2px solid #e8e0d4;
  outline-offset: 3px;
}

.layout-btn__label {
  font-size: 1.5em;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.01em;
  font-variation-settings: "wght" 500;
}

.layout-btn__icon {
  width: 0.75em;
  height: 0.75em;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Nature grid
   -------------------------------------------------------------------------- */

.layout-grid {
  padding: 0 1em 8em;
}

.layout-grid__collection {
  position: relative;
  width: 100%;
}

.layout-grid__list {
  display: flex;
  flex-wrap: wrap;
  position: relative;
  row-gap: 3.5em;
  column-gap: var(--column-gap);
}

.layout-grid__item {
  position: relative;
  will-change: transform;
}

.layout-grid__card {
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
}

.layout-grid__card-visual {
  aspect-ratio: 1 / 1.25;
  border-radius: 0.4em;
  overflow: hidden;
  background-color: #1a1816;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 18px 40px rgba(0, 0, 0, 0.35);
}

.layout-grid__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.65, 0, 0.1, 1);
}

.layout-grid__card:hover .layout-grid__card-img {
  transform: scale(1.04);
}

.layout-grid__card-details {
  height: 2.5em;
  margin-top: 0.85em;
}

.layout-grid__card-title {
  margin: 0;
  font-size: 1.5em;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: #f3efe8;
  font-variation-settings: "wght" 500;
}

/* --------------------------------------------------------------------------
   Layout modes (column count + gaps)
   -------------------------------------------------------------------------- */

[data-layout-status="large"] {
  --columns: 3;
  --column-gap: 1.5em;
}

[data-layout-status="small"] {
  --columns: 5;
  --column-gap: 1em;
}

[data-layout-grid-item] {
  width: calc(
    (100% - (var(--columns) - 1) * var(--column-gap)) / var(--columns)
  );
}

[data-layout-grid-item-title] {
  transition: all 0.8s cubic-bezier(0.65, 0, 0.1, 1);
}

/* Small: tighter title */
[data-layout-status="small"] [data-layout-grid-item] .layout-grid__card-title {
  font-size: 1em;
  opacity: 0.88;
}

/* During Flip absolute phase */
[data-transitioning="true"] .layout-grid__item {
  z-index: 1;
}

[data-transitioning="true"] .layout-grid__card:hover .layout-grid__card-img {
  transform: none;
}

/* --------------------------------------------------------------------------
   Responsive breakpoints
   -------------------------------------------------------------------------- */

@media screen and (max-width: 767px) {
  .page {
    font-size: clamp(12px, 3.4vw, 16px);
  }

  .layout-buttons {
    padding: 1em 1em 2em;
  }

  [data-layout-status="large"] {
    --columns: 1;
    --column-gap: 0em;
  }

  [data-layout-status="small"] {
    --columns: 2;
    --column-gap: 1em;
  }

  .layout-grid__list {
    row-gap: 2.5em;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-layout-grid-item-title],
  .layout-btn,
  .layout-grid__card-img {
    transition: none !important;
  }

  .layout-grid__card:hover .layout-grid__card-img {
    transform: none;
  }
}