/* Clayrill — handmade ceramics field guide. System fonts only, no external assets. */

:root {
  --paper: #f4efe6;
  --paper-deep: #ebe3d5;
  --ink: #221b17;
  --ink-soft: #5a4d44;
  --clay: #b45f3a;
  --clay-deep: #3c2a22;
  --cobalt: #2c4fa6;
  --cobalt-tint: #dfe5f5;
  --line: #cdbfae;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --rhythm: clamp(72px, 10vw, 128px);
  --gutter: clamp(20px, 5vw, 48px);
  --measure: 62ch;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(60, 42, 34, 0.025) 3px 4px),
    var(--paper);
}

h1, h2, h3, .brand { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; }

h2 { font-size: clamp(1.9rem, 3.4vw, 2.75rem); line-height: 1.1; margin: 0 0 0.5em; }

h3 { font-size: 1.35rem; line-height: 1.25; margin: 0 0 0.4em; }

p { margin: 0 0 1em; max-width: var(--measure); }

a { color: var(--cobalt); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }

a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: var(--gutter); top: -4rem;
  background: var(--ink); color: var(--paper); padding: 0.5rem 0.9rem; z-index: 20;
}

.skip:focus { top: 0.5rem; }

.wrap { max-width: 1200px; margin-inline: auto; padding-inline: var(--gutter); }

.dateline {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1.2rem;
}

.dateline::before {
  content: ""; display: inline-block; width: 1.6rem; height: 2px;
  background: var(--clay); vertical-align: middle; margin-right: 0.7rem;
}

/* Header ------------------------------------------------------------ */

.site-head {
  position: sticky; top: 0; z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-head .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }

.brand { font-size: 1.35rem; color: var(--ink); text-decoration: none; }

.brand em { font-style: italic; color: var(--clay); }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--line); color: var(--ink);
  font: inherit; padding: 0.45rem 0.8rem; cursor: pointer;
}

.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.6rem; }

.site-nav a { color: var(--ink); text-decoration: none; font-size: 0.95rem; padding-block: 0.4rem; }

.site-nav a:hover, .site-nav a[aria-current="true"] {
  text-decoration: underline; text-decoration-color: var(--clay); text-decoration-thickness: 2px;
}

/* Hero -------------------------------------------------------------- */

.hero { padding-block: clamp(48px, 7vw, 88px) var(--rhythm); }

.hero .wrap {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gutter); align-items: end;
}

.hero h1 {
  font-size: clamp(2.5rem, 5.4vw, 4.5rem);
  line-height: 1.04;
  margin: 0 0 1rem;
  max-width: 14ch;
}

.hero h1 em { font-style: italic; color: var(--clay); }

.hero .lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 46ch; }

.hero-links { display: flex; flex-wrap: wrap; gap: 0.6rem 1.4rem; margin-top: 1.6rem; padding: 0; list-style: none; }

.hero-links a { font-size: 0.95rem; }

.shelf-art { width: 100%; height: auto; color: var(--clay); display: block; }

/* Shapes gallery ---------------------------------------------------- */

section { padding-block: var(--rhythm); }

section + section { border-top: 1px solid var(--line); }

.section-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--gutter); margin-bottom: 2.5rem;
}

.section-head p { margin: 0; color: var(--ink-soft); align-self: end; }

.filters { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1rem; margin-bottom: 2rem; }

.filters fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }

.filters legend { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }

.chip {
  font: inherit; font-size: 0.9rem; cursor: pointer;
  background: transparent; color: var(--ink);
  border: 1px solid var(--ink); border-radius: 999px; padding: 0.35rem 0.9rem;
}

.chip[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

.chip:hover { border-color: var(--cobalt); color: var(--cobalt); }

.chip[aria-pressed="true"]:hover { background: var(--cobalt); border-color: var(--cobalt); color: var(--paper); }

.check { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; margin-left: auto; }

.check input { width: 1.1rem; height: 1.1rem; accent-color: var(--cobalt); }

.count { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-soft); margin: 0 0 1rem; }

.shelf {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 0 var(--gutter);
}

.pot { margin: 0; display: flex; flex-direction: column; }

.pot[hidden] { display: none; }

.pot svg {
  width: 100%; height: 150px; display: block; align-self: end;
  color: var(--clay); border-bottom: 3px solid var(--clay-deep);
  transition: color 180ms ease;
}

.pot:hover svg, .pot:focus-within svg { color: var(--cobalt); }

.pot .cap { padding: 0.8rem 0 2.2rem; }

.pot b { font-family: var(--serif); font-weight: 400; font-size: 1.2rem; display: block; }

.pot small {
  display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--cobalt); margin: 0.15rem 0 0.4rem;
}

.pot p { font-size: 0.92rem; color: var(--ink-soft); margin: 0; }

.empty { display: none; padding: 2rem 0; color: var(--ink-soft); }

.shelf.is-empty + .empty { display: block; }

/* Glossary ---------------------------------------------------------- */

.glossary {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0 var(--gutter); margin: 0;
}

.glossary div { border-top: 1px solid var(--line); padding: 1rem 0 1.2rem; }

.glossary dt { font-family: var(--serif); font-size: 1.25rem; }

.glossary dt span {
  font-family: var(--mono); font-size: 0.72rem; color: var(--cobalt); margin-left: 0.5rem; letter-spacing: 0.06em;
}

.glossary dd { margin: 0.3rem 0 0; color: var(--ink-soft); font-size: 0.95rem; }

/* Glazing (clay band) ----------------------------------------------- */

.band { background: var(--clay-deep); color: var(--paper); border-top: 0; }

.band .dateline, .band .section-head p { color: var(--paper-deep); }

.band .dateline::before { background: var(--paper); }

.band a { color: #b9c9f5; }

.tabs {
  display: flex; gap: 0; border-bottom: 1px solid rgba(244, 239, 230, 0.35); margin-bottom: 1.8rem; overflow-x: auto;
}

.tab {
  font: inherit; font-size: 0.95rem; cursor: pointer; white-space: nowrap;
  background: none; border: 0; border-bottom: 3px solid transparent; color: var(--paper-deep);
  padding: 0.7rem 1rem 0.6rem; margin-bottom: -1px;
}

.tab[aria-selected="true"] { color: var(--paper); border-bottom-color: var(--paper); }

.tab:hover { color: var(--paper); }

.band :focus-visible { outline-color: var(--paper); }

.panel[hidden] { display: none; }

.panel { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: var(--gutter); }

.panel p { color: var(--paper-deep); }

.swatches { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; align-content: start; }

.swatches li { display: grid; grid-template-columns: 2.4rem 1fr; gap: 0.8rem; align-items: center; font-size: 0.9rem; }

.swatches i {
  display: block; height: 2.4rem; border-radius: 50% 50% 46% 46%; border: 1px solid rgba(244, 239, 230, 0.4);
}

/* Care notes -------------------------------------------------------- */

.care { max-width: 760px; }

.care details { border-top: 1px solid var(--line); }

.care details:last-of-type { border-bottom: 1px solid var(--line); }

.care summary {
  cursor: pointer; list-style: none; font-family: var(--serif); font-size: 1.3rem;
  padding: 1rem 2.2rem 1rem 0; position: relative;
}

.care summary::-webkit-details-marker { display: none; }

.care summary::after {
  content: ""; position: absolute; right: 0.4rem; top: 50%; width: 0.7rem; height: 0.7rem;
  border-right: 2px solid var(--clay); border-bottom: 2px solid var(--clay);
  transform: translateY(-70%) rotate(45deg); transition: transform 180ms ease;
}

.care details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }

.care summary:hover { color: var(--cobalt); }

.care details p { padding-bottom: 1.2rem; color: var(--ink-soft); }

/* About / privacy --------------------------------------------------- */

.about .wrap { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--gutter); }

.about h2 { font-size: 1.6rem; }

.about p { font-size: 0.95rem; color: var(--ink-soft); }

/* Footer ------------------------------------------------------------ */

.site-foot {
  border-top: 3px solid var(--clay-deep); padding-block: 2.4rem; font-size: 0.88rem; color: var(--ink-soft);
}

.site-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }

.site-foot ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 1.2rem; }

.site-foot a { color: var(--ink); }

/* Mobile ------------------------------------------------------------ */

@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--paper);
    border-bottom: 1px solid var(--line); padding: 0.6rem var(--gutter) 1rem; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { display: block; padding: 0.7rem 0; font-size: 1.05rem; border-top: 1px solid var(--line); }
  .hero .wrap, .section-head, .panel { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .shelf-art { max-width: 320px; }
  .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1rem; }
  .pot svg { height: 120px; }
  .check { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}