:root {
  --c-bg: #ffffff;
  --c-text: #5a5a5a;
  --c-border: #dddddd;
  --radius: 0;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0;
}

button,
input,
select {
  color: var(--c-text);
  font: inherit;
  font-weight: 500;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid #333333;
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-160%);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--c-text);
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  transform: translateY(0);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  font-weight: 500;
}

h1 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.5rem;
  font-size: 1.4rem;
  line-height: 1.3;
}

h3 {
  margin-bottom: 0;
  font-size: 1.15rem;
  line-height: 1.35;
}

.catalog {
  padding: clamp(2rem, 5vw, 4rem) 0;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.header-links {
  display: flex;
  align-items: center;
  flex: 0 1 620px;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem 1.4rem;
  text-align: right;
}

.header-links a {
  color: var(--c-text);
  font-size: 0.9rem;
  text-decoration: none;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(180px, 240px);
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.search-field,
.select-field {
  display: grid;
  gap: 0.35rem;
}

.search-field span,
.select-field span {
  font-size: 0.9rem;
}

input,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #ffffff;
  padding: 0.75rem 0.9rem;
}

.stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 40px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1rem;
}

.palette-card {
  overflow: hidden;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #ffffff;
}

.card-head {
  padding: 1rem;
}

.number {
  margin-bottom: 0.15rem;
  font-size: 0.9rem;
}

.swatch-bar {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr 0.42fr;
  min-height: 112px;
}

.swatch {
  min-height: 112px;
  border: 0;
  border-top: 1px solid var(--c-border);
  border-radius: 0;
  background: var(--swatch);
}

.empty-state {
  grid-column: 1 / -1;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}

.seo-block,
.notes {
  border-top: 1px solid var(--c-border);
  padding: 2rem 0;
  font-size: 14px;
}

.seo-block h2 {
  font-size: 1rem;
}

.seo-block p {
  max-width: 860px;
}

.notes a {
  color: var(--c-text);
  text-decoration: none;
}

@media (max-width: 680px) {
  main {
    width: min(100% - 24px, 1180px);
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .page-header {
    display: grid;
  }

  .header-links {
    justify-content: flex-start;
    text-align: left;
  }

  .header-links a {
    font-size: 0.85rem;
  }

  .stats {
    display: grid;
    gap: 0.25rem;
  }

  .palette-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}