:root {
  font-family: Inter, Roboto, Arial, sans-serif;
  color-scheme: light;
  --bg: #f3f7fc;
  --surface: #ffffff;
  --ink: #10233f;
  --muted: #66758a;
  --line: #dbe4ef;
  --green: #12824a;
  --blue: #0b6bea;
  --amber: #d59118;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
}

.page {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 18px;
  display: grid;
  gap: 14px;
}

.header {
  min-height: 220px;
  border-radius: 8px;
  padding: 22px;
  background:
    linear-gradient(rgba(6, 42, 91, 0.72), rgba(9, 96, 70, 0.72)),
    url("https://images.unsplash.com/photo-1518843875459-f738682238a6?auto=format&fit=crop&w=1200&q=80");
  background-size: cover;
  background-position: center;
  color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 16px 36px rgba(16, 35, 63, 0.14);
}

.header span {
  color: #c7e6d5;
  font-weight: 700;
}

.header a {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  padding: 10px 12px;
  text-decoration: none;
}

.section-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.section-tabs a {
  min-height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #eef5ff;
  color: #0950b8;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 18px;
}

.lookup {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input,
select,
textarea {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
}

textarea {
  resize: vertical;
}

button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
}

.panel,
.product {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  display: grid;
  gap: 12px;
  box-shadow: 0 10px 24px rgba(16, 35, 63, 0.06);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.product:empty {
  display: none;
}

.product-hero-image {
  width: 100%;
  max-height: 320px;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
  background: #eef4f1;
  aspect-ratio: 16 / 9;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.fact {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.fact span,
.muted {
  color: var(--muted);
  font-size: 13px;
}

.fact strong {
  display: block;
  margin-top: 4px;
}

.list {
  display: grid;
  gap: 10px;
}

.form {
  display: grid;
  gap: 12px;
}

.form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.form input,
.form select,
.form textarea {
  color: var(--ink);
  font-weight: 400;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
}

.item-thumb {
  width: 64px;
  height: 64px;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
  background: #eef4f1;
}

.item a {
  color: var(--blue);
  font-weight: 700;
}

.review-item {
  border-top: 1px solid var(--line);
  padding-top: 10px;
  display: grid;
  gap: 6px;
}

.review-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.review-item div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.review-item p {
  color: var(--muted);
  font-size: 14px;
}

.stars {
  color: #b25d00;
  font-weight: 700;
  white-space: nowrap;
}

.message {
  min-height: 20px;
  color: var(--muted);
  font-size: 14px;
}

.message.success {
  color: var(--green);
  font-weight: 700;
}

.message.error {
  color: #b42318;
  font-weight: 700;
}

@media (max-width: 560px) {
  .lookup,
  .facts,
  .form-grid,
  .item,
  .section-tabs {
    grid-template-columns: 1fr;
  }

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