:root {
  --sand: #f9efe2;
  --peach: #f4bba8;
  --rose: #e89b8a;
  --brown: #8f4e2b;
  --cream: #fff7f0;
  --ink: #3c2a1d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Quicksand", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 20%, #fef3e8 0, transparent 24%),
    radial-gradient(circle at 80% 10%, #fde6d9 0, transparent 22%),
    radial-gradient(circle at 50% 80%, #f8e5d6 0, transparent 25%), var(--cream);
  min-height: 100vh;
}

.content-shell {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 20px clamp(18px, 4vw, 40px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--brown);
  font-weight: 700;
  letter-spacing: 0.4px;
}

.brand img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 16px;
  background: #fff;
  padding: 6px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.pill-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill-nav a {
  padding: 10px 16px;
  border-radius: 999px;
  background: #fff;
  color: var(--brown);
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.07);
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.pill-nav a:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.hero {
  padding: 10px clamp(18px, 4vw, 40px) 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: center;
}

.hero-text h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 4vw, 48px);
  color: var(--brown);
}

.hero-text p {
  margin: 0 0 16px;
  max-width: 640px;
  line-height: 1.6;
}

.feature-card {
  max-width: 420px;
  margin: auto;
}

.hero-preview {
  background: radial-gradient(
      circle at 20% 30%,
      #fde2d4 0,
      #fde2d4 28%,
      transparent 35%
    ),
    radial-gradient(circle at 70% 40%, #f9d4b7 0, #f9d4b7 30%, transparent 40%),
    linear-gradient(135deg, #fbdccf, #f4bba8);
}

.feature-note {
  margin: 10px 0 0;
}

.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  cursor: pointer;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 14px;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
  font-size: 15px;
}

.btn-primary {
  background: linear-gradient(120deg, var(--peach), var(--rose));
  color: #3b2415;
  box-shadow: 0 12px 30px rgba(232, 155, 138, 0.35);
}

.btn-secondary {
  background: #fff;
  color: var(--brown);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.btn:hover {
  transform: translateY(-2px);
}

.catalog {
  padding: 10px clamp(18px, 4vw, 40px) 60px;
}

.catalog h2 {
  margin: 0 0 14px;
  font-size: 26px;
  color: var(--brown);
}

.catalog p.note {
  margin: 0 0 20px;
  color: #5a4332;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  background: #fff;
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.art-preview {
  position: relative;
  padding-top: 75%;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(135deg, #fbdccf, #f4bba8);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}

.art-preview img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.art-preview span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #3b2415;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.card h3 {
  margin: 0;
  color: var(--brown);
  font-size: 18px;
}

.card p {
  margin: 0;
  color: #5a4332;
  line-height: 1.5;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  background: #fff7f0;
  border: 1px solid #f4bba8;
  color: #7a4426;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
}

.format-toggle {
  display: flex;
  gap: 8px;
  padding: 6px;
  background: #fdf4eb;
  border-radius: 12px;
}

.format-toggle button {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px;
  border-radius: 10px;
  font-weight: 700;
  color: #5a4332;
  cursor: pointer;
  transition: background 120ms ease, box-shadow 120ms ease;
}

.format-toggle button[aria-pressed="true"] {
  background: #fff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.07);
  color: var(--brown);
}

.format-toggle button.sold-out {
  opacity: 0.45;
  cursor: not-allowed;
  text-decoration: line-through;
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.price {
  font-weight: 800;
  color: var(--brown);
  font-size: 18px;
}

.summary {
  margin-top: 26px;
  padding: 18px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.summary h3 {
  margin: 0 0 10px;
  color: var(--brown);
}

.summary ul {
  padding-left: 16px;
  margin: 0 0 12px;
  color: #5a4332;
}

.summary .empty {
  color: #7a6b5f;
}

.sold-out-tag {
  background: #f9d4b7;
  color: #6a2f1b;
  border-color: #e89b8a;
}

.original-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  align-items: center;
}

.original-label {
  font-weight: 700;
  color: var(--brown);
}

.original-btn {
  font-weight: 700;
}

.detail {
  padding: 20px clamp(18px, 4vw, 40px) 60px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  align-items: start;
}

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

.detail-gallery img {
  width: 100%;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.detail-info h1 {
  margin: 8px 0 10px;
  color: var(--brown);
}

.detail-info p {
  line-height: 1.7;
}

.detail-block {
  margin-top: 14px;
  padding: 12px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.detail-block h3 {
  margin: 0 0 8px;
  color: var(--brown);
}

.format-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 6px 0;
}

.format-row span {
  font-weight: 600;
  color: #5a4332;
}

footer {
  padding: 20px;
  text-align: center;
  color: #6d5443;
}

.error-wrap {
  padding: 40px clamp(18px, 5vw, 54px) 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: center;
  min-height: calc(100vh - 160px);
  justify-items: center;
  text-align: center;
}

.error-text h1 {
  margin: 8px 0 12px;
  font-size: clamp(30px, 4vw, 44px);
  color: var(--brown);
}

.error-text p {
  margin: 0 0 14px;
  line-height: 1.6;
  color: #5a4332;
}

.eyebrow {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: #fff7f0;
  color: #7a4426;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.4px;
}

.error-visual {
  max-width: 460px;
  margin: auto;
}

.error-wrap .cta-row {
  justify-content: center;
}

.error-illustration {
  background: radial-gradient(
      circle at 25% 30%,
      #fde2d4 0,
      #fde2d4 28%,
      transparent 36%
    ),
    radial-gradient(circle at 70% 25%, #f9d4b7 0, #f9d4b7 32%, transparent 42%),
    radial-gradient(circle at 50% 75%, #f8e0c9 0, #f8e0c9 30%, transparent 40%),
    linear-gradient(135deg, #fbdccf, #f4bba8);
}

@media (max-width: 640px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .price-row {
    flex-direction: column;
    align-items: flex-start;
  }
}