/* ==========================================================================
   Design tokens — pulled from the aesthetic photo set:
   cream/oatmeal aida cloth, wood embroidery hoops, and a floss palette of
   terracotta red, sage green, mustard gold, deep teal, and dusty rose.
   ========================================================================== */

:root {
  --color-bg: #f7f1e2;
  --color-bg-alt: #efe4c9;
  --color-surface: #fffbf3;
  --color-text: #2e2419;
  --color-text-muted: #6b5d4d;
  --color-border: #ddceac;

  --color-rust: #bb4f34;
  --color-rust-dark: #963d28;
  --color-sage: #6f7d47;
  --color-sage-dark: #57612f;
  --color-mustard: #d79a34;
  --color-mustard-dark: #a9761f;
  --color-teal: #2f6667;
  --color-rose: #bd6b7f;
  --color-wood: #ad7a42;

  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", serif;
  --font-body: "Karla", "Segoe UI", system-ui, sans-serif;

  --radius: 6px;
  --shadow-card: 0 1px 2px rgba(46, 36, 25, 0.08), 0 4px 14px rgba(46, 36, 25, 0.06);
  --max-width: 72rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #211b14;
    --color-bg-alt: #2a2219;
    --color-surface: #2b241a;
    --color-text: #f1e9d8;
    --color-text-muted: #c3b49c;
    --color-border: #493d2b;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 14px rgba(0, 0, 0, 0.25);
  }
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-rust-dark);
}

a:hover {
  color: var(--color-rust);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-text);
}

h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); font-weight: 500; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* A small stitched "x x x" rule used as a section divider throughout the site */
.stitch-rule {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  color: var(--color-rust);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.4em;
  margin: 2.5rem 0;
  opacity: 0.7;
}

.stitch-rule::before,
.stitch-rule::after {
  content: "";
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.site-logo:hover { color: var(--color-rust); }

.site-logo__mark { color: var(--color-rust); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.65rem;
  font-size: 1.1rem;
  color: var(--color-text);
  cursor: pointer;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-text);
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--color-bg-alt);
  color: var(--color-rust-dark);
}

.site-nav__search {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  margin-left: 0.3rem;
}

@media (max-width: 800px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    padding-bottom: 0.75rem;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 0.6rem 0.5rem; }
  .site-nav__search { margin-left: 0; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  color: #fbf4e4;
  background: linear-gradient(180deg, rgba(30, 22, 14, 0.42), rgba(30, 22, 14, 0.62)), var(--color-text);
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

.hero__inner {
  padding-block: 4.5rem;
  max-width: 42rem;
}

.hero__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--color-mustard);
  margin-bottom: 0.75rem;
}

.hero__eyebrow a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(251, 244, 228, 0.45);
  text-underline-offset: 3px;
}

.hero__eyebrow a:hover { text-decoration-color: currentColor; }

.hero h1 { color: #fffaf0; }

.hero p {
  font-size: 1.15rem;
  color: #f1e6cd;
  max-width: 38rem;
}

/* ==========================================================================
   Buttons & badges
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  background: var(--color-rust);
  color: #fffaf0;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
}

.btn:hover { background: var(--color-rust-dark); color: #fffaf0; }

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 250, 240, 0.6);
  color: #fffaf0;
}

.btn--ghost:hover { background: rgba(255, 250, 240, 0.12); color: #fffaf0; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.badge--p1 { background: #f4e0d6; color: var(--color-rust-dark); border-color: #e6bfa8; }
.badge--p2 { background: #eee3c4; color: var(--color-mustard-dark); border-color: #ddc78e; }
.badge--p3 { background: #e4e6d4; color: var(--color-sage-dark); border-color: #cdd2ac; }

.badge--beginner { background: #e2e9d6; color: var(--color-sage-dark); border-color: #c7d3ae; }
.badge--intermediate { background: #eee3c4; color: var(--color-mustard-dark); border-color: #ddc78e; }
.badge--advanced { background: #f0d9d0; color: var(--color-rust-dark); border-color: #e0b7a6; }

/* ==========================================================================
   Section landing / hub pages
   ========================================================================== */

.section-header {
  padding-block: 3rem 2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.section-header__eyebrow {
  font-family: var(--font-display);
  color: var(--color-rust-dark);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
}

.section-header__eyebrow a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 3px;
}

.section-header__eyebrow a:hover { text-decoration-color: currentColor; }

.section-header__eyebrow [aria-current="page"] { text-transform: none; letter-spacing: normal; }

.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15.5rem, 1fr));
  gap: 1.1rem;
  padding-block: 2.5rem;
}

.page-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.page-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-rust);
  color: var(--color-text);
}

.page-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.page-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.page-card__notes {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.page-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Sections index (homepage pillar grid)
   ========================================================================== */

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
  padding-block: 1rem 3rem;
}

.pillar-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 13rem;
  display: flex;
  align-items: flex-end;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

.pillar-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.pillar-card:hover img { transform: scale(1.05); }

.pillar-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(30, 22, 14, 0) 35%, rgba(24, 18, 11, 0.82) 100%);
}

.pillar-card__label {
  position: relative;
  z-index: 1;
  padding: 1.1rem 1.2rem;
  color: #fffaf0;
}

.pillar-card__label h3 {
  color: #fffaf0;
  margin-bottom: 0.2rem;
}

.pillar-card__label p {
  color: #e9dcc0;
  font-size: 0.88rem;
  margin: 0;
}

/* ==========================================================================
   Article / long-form content pages
   ========================================================================== */

.article-hero {
  padding-block: 2.5rem 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.article-body {
  max-width: 42rem;
  padding-block: 1rem 3rem;
}

.article-body h2 { margin-top: 2em; }
.article-body h3 { margin-top: 1.6em; }
.article-body ul, .article-body ol { padding-left: 1.3em; }
.article-body blockquote {
  margin: 1.5em 0;
  padding: 0.2em 1.2em;
  border-left: 3px solid var(--color-rust);
  color: var(--color-text-muted);
  font-style: italic;
}

.callout {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  margin: 1.5rem 0;
}

.callout h4 { margin-bottom: 0.4rem; }

.related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.related-list a {
  text-decoration: none;
  font-weight: 600;
}

/* ==========================================================================
   Stub / in-progress pages
   ========================================================================== */

.stub-page {
  max-width: 40rem;
}

.stub-notice {
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-rust);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  margin-top: 1.5rem;
}

.stub-notice p:last-child { margin-bottom: 0; }

/* ==========================================================================
   Tool pages
   ========================================================================== */

.tool-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.tool-meta-grid dt {
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.tool-meta-grid dd { margin: 0; }

.diagram-placeholder {
  margin-top: 1.5rem;
  border: 1px dashed var(--color-rust);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
}

.diagram-placeholder__mark {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-rust);
  margin-bottom: 0.4rem;
}

.diagram-placeholder p {
  margin: 0.15rem 0;
}

.diagram-placeholder__file {
  font-family: monospace;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.tool-placeholder {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-surface);
}

/* ==========================================================================
   Interactive tool widgets
   ========================================================================== */

.tool-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.tool-field {
  flex: 1 1 10rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.tool-field label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.tool-field input,
.tool-field select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
}

.tool-field input:focus,
.tool-field select:focus {
  outline: 2px solid var(--color-rust);
  outline-offset: 1px;
}

.tool-result {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-rust);
  border-radius: var(--radius);
  padding: 1rem 1.3rem;
  margin-top: 0.5rem;
}

.tool-result__label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin: 0 0 0.2rem;
}

.tool-result__value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-rust-dark);
  margin: 0;
}

.tool-result__value small {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: normal;
}

.tool-note {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 0.9rem;
}

.tool-widget table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin-top: 0.5rem;
}

.tool-widget table th,
.tool-widget table td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

.tool-widget table th {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tool-widget button {
  font-family: var(--font-body);
  cursor: pointer;
}

/* --- Aida count comparison visualizer --- */

.aida-swatch-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 1rem;
}

.aida-swatch-card {
  flex: 1 1 12rem;
  text-align: center;
}

.aida-swatch-card h4 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
}

.aida-swatch-rect {
  margin: 0 auto;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-wood);
}

.aida-swatch-card p {
  margin: 0.6rem 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Symbol key generator --- */

.key-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.7rem;
  padding-bottom: 0.9rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--color-border);
}

.key-row .tool-field { margin-bottom: 0; flex: 1 1 8rem; }
.key-row .tool-field--symbol { flex: 0 1 5rem; }
.key-row .tool-field--color { flex: 0 1 4.5rem; }
.key-row input[type="color"] {
  padding: 0.2rem;
  height: 2.4rem;
}
.key-row .btn--remove {
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: var(--radius);
  padding: 0.55rem 0.8rem;
}
.key-row .btn--remove:hover { border-color: var(--color-rust); color: var(--color-rust); }

.key-symbol-cell {
  font-size: 1.2rem;
  text-align: center;
}

.key-swatch-cell span {
  display: inline-block;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 3px;
  border: 1px solid var(--color-border);
  vertical-align: middle;
}

/* --- Stitch count estimator from image --- */

.tool-preview-canvas {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  max-width: 100%;
  height: auto;
  background: var(--color-surface);
  margin-top: 0.5rem;
}

.swatch-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.6rem;
}

.swatch-strip span {
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 3px;
  border: 1px solid var(--color-border);
  display: inline-block;
}

.tool-result-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tool-result-grid .tool-result { flex: 1 1 12rem; margin-top: 0; }

/* --- Search page --- */

.search-results {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.search-result {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}

.search-result a {
  text-decoration: none;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.search-result__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

.search-result__section {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.search-result__desc {
  margin: 0.3rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  background: var(--color-text);
  color: #e9dcc0;
  padding-block: 2.5rem;
}

.site-footer a { color: #fbf4e4; }

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.site-footer__grid h4 {
  color: #fbf4e4;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.site-footer__grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  margin-bottom: 1.2rem;
  font-size: 0.85rem;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 250, 240, 0.15);
  padding-top: 1.2rem;
  font-size: 0.85rem;
  color: #c3b49c;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}