:root {
  --page-bg: #f6f2ec;
  --surface: #fffdf9;
  --image-bg: #f0ede8;
  --text: #202327;
  --muted: #706b64;
  --border: #e3ded6;
  --border-strong: #36383b;
  --button: #20272d;
  --button-hover: #303943;
  --shadow: 0 18px 48px rgba(28, 27, 24, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 360px;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: Inter, Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(32, 39, 45, 0.38);
  outline-offset: 3px;
}

.product-page {
  min-height: 100svh;
  display: grid;
  place-items: start center;
  padding: 16px;
}

.product-panel {
  width: min(100%, 720px);
  display: grid;
  gap: 24px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid rgba(32, 35, 39, 0.07);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.product-gallery {
  display: grid;
  gap: 12px;
}

.gallery-main {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--image-bg);
  border-radius: var(--radius);
}

.gallery-main-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.gallery-thumbnails {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.gallery-thumbnail {
  overflow: hidden;
  aspect-ratio: 1 / 1;
  padding: 0;
  background: var(--image-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
}

.gallery-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.gallery-thumbnail.is-selected {
  border-color: var(--border-strong);
}

.product-summary {
  display: grid;
  gap: 12px;
  padding: 0 2px 2px;
}

.product-eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.2;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 10ch;
  color: var(--text);
  font-size: clamp(30px, 9vw, 34px);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.04;
}

.product-description {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.quote-button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  margin-top: 8px;
  padding: 0 16px;
  background: var(--button);
  color: #fff;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.quote-button:hover {
  transform: translateY(-2px);
  background: var(--button-hover);
}

@media (min-width: 640px) {
  .product-page {
    padding: 32px 24px;
  }

  .product-panel {
    gap: 32px;
    padding: 24px;
  }

  .gallery-main {
    aspect-ratio: 5 / 4;
  }

  .gallery-thumbnails {
    gap: 12px;
  }

  .product-summary {
    padding-inline: 4px;
  }

  h1 {
    max-width: none;
    font-size: 38px;
  }

  .product-description {
    font-size: 17px;
  }
}

@media (min-width: 900px) {
  .product-page {
    padding-block: 48px;
  }
}