/* ==========================================================================
   CrossStitchGrid.com — Heritage Linen & Brass Atelier UI
   Modern Web Standards: <dialog closedby="any">, @container sticky tables,
   content-visibility: auto + contain-intrinsic-size, Clean Print Styles
   ========================================================================== */

:root {
  color-scheme: light dark;
  interpolate-size: allow-keywords;
  --bg-linen: #FAF7F2;
  --bg-card: #FFFFFF;
  --bg-panel: #F3EDE2;
  --bg-subtle: #EFE7D8;
  --ink: #1E1D1A;
  --ink-muted: #5C564E;
  --ink-soft: #7B746A;
  --border: #DDD3C2;
  --border-strong: #C3B59E;
  --crimson: #C42838;
  --crimson-hover: #A31D2B;
  --crimson-soft: #FBECEF;
  --forest: #1E5A44;
  --forest-soft: #E8F3EE;
  --brass: #B8924A;
  --brass-soft: #FBF5E8;
  --shadow-sm: 0 2px 8px rgba(30, 29, 26, 0.05);
  --shadow-md: 0 10px 28px rgba(30, 29, 26, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Mono', 'SFMono-Regular', Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --bg-linen: #161513;
    --bg-card: #201E1B;
    --bg-panel: #282521;
    --bg-subtle: #312D28;
    --ink: #F5F1E9;
    --ink-muted: #B9B1A4;
    --ink-soft: #8E8679;
    --border: #3B3630;
    --border-strong: #534C43;
    --crimson: #E04858;
    --crimson-hover: #F05A6A;
    --crimson-soft: #3A1D21;
    --forest: #389E78;
    --forest-soft: #183228;
    --brass: #D4AD63;
    --brass-soft: #2E2618;
  }
}

:root[data-theme="dark"] {
  --bg-linen: #161513;
  --bg-card: #201E1B;
  --bg-panel: #282521;
  --bg-subtle: #312D28;
  --ink: #F5F1E9;
  --ink-muted: #B9B1A4;
  --ink-soft: #8E8679;
  --border: #3B3630;
  --border-strong: #534C43;
  --crimson: #E04858;
  --crimson-hover: #F05A6A;
  --crimson-soft: #3A1D21;
  --forest: #389E78;
  --forest-soft: #183228;
  --brass: #D4AD63;
  --brass-soft: #2E2618;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size-adjust: from-font;
  background-color: var(--bg-linen);
  background-image:
    radial-gradient(rgba(184, 146, 74, 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--crimson);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.container {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg-linen) 92%, transparent);
  backdrop-filter: blur(10px);
  border-block-end: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  flex-wrap: wrap;
  padding-block: 0.5rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--crimson-soft);
  border: 1.5px solid var(--brass);
  color: var(--crimson);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.main-nav a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.62rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease, color 0.15s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: var(--bg-panel);
  color: var(--ink);
}

.main-nav a[aria-current="page"] {
  border: 1px solid var(--border-strong);
  color: var(--crimson);
}

.theme-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.38rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding-block: 1.15rem 0.75rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--brass-soft);
  border: 1px solid color-mix(in srgb, var(--brass) 45%, transparent);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  margin-block-end: 0.45rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size-adjust: cap-height from-font;
  font-size: clamp(1.6rem, 2.9vw, 2.25rem);
  line-height: 1.16;
  margin: 0 0 0.45rem 0;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero-lead {
  max-width: 880px;
  margin: 0 0 0.8rem 0;
  color: var(--ink-muted);
  font-size: 0.96rem;
}

/* Workbench Grid */
.workbench {
  background: var(--bg-card);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-block-end: 1.35rem;
}

.preset-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0.8rem 1.15rem;
  background: var(--bg-panel);
  border-block-end: 1px solid var(--border);
}

.preset-chips {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.preset-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-muted);
  margin-inline-end: 0.25rem;
}

.chip-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.36rem 0.82rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip-btn:hover,
.chip-btn.active {
  background: var(--crimson);
  border-color: var(--crimson);
  color: #FFFFFF;
}

.upload-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--forest);
  color: #FFFFFF;
  border-radius: 999px;
  padding: 0.4rem 0.95rem;
  font-size: 0.83rem;
  font-weight: 700;
  cursor: pointer;
}

.upload-pill input[type="file"] {
  display: none;
}

.studio-grid {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr) 300px;
  min-height: 540px;
}

@media (max-width: 1080px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }
}

.studio-sidebar,
.studio-inspector {
  padding: 1.1rem;
  background: var(--bg-card);
}

.studio-sidebar {
  border-inline-end: 1px solid var(--border);
}

.studio-inspector {
  border-inline-start: 1px solid var(--border);
}

.control-group {
  margin-block-end: 1rem;
}

.control-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--ink);
  margin-block-end: 0.35rem;
}

.control-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--crimson);
  background: var(--crimson-soft);
  padding: 0.1rem 0.45rem;
  border-radius: 5px;
}

input[type="text"],
input[type="number"],
input[type="search"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.52rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-linen);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--crimson);
  cursor: pointer;
}

.studio-toggles {
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  padding: 0.55rem 0.65rem;
  background: var(--bg-linen);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-block-end: 0.9rem;
}

.studio-toggles label.toggle-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 0.48rem;
  margin-block-end: 0;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.studio-toggles input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--crimson);
  cursor: pointer;
  flex-shrink: 0;
}

.studio-toggles input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--crimson);
  outline-offset: 2px;
}

@supports not (accent-color: var(--crimson)) {
  .studio-toggles input[type="checkbox"] {
    position: absolute !important;
    clip-path: inset(50%) !important;
    overflow: hidden !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    border: 0 !important;
    white-space: nowrap !important;
  }
  .studio-toggles label.toggle-row {
    position: relative;
    padding-inline-start: 1.55rem;
  }
  .studio-toggles input[type="checkbox"] + span::before {
    content: "";
    position: absolute;
    inset-inline-start: 0;
    inset-block-start: 50%;
    transform: translateY(-50%);
    width: 1.05rem;
    height: 1.05rem;
    border: 2px solid var(--border-strong);
    background: var(--bg-card);
    border-radius: 4px;
    box-sizing: border-box;
  }
  .studio-toggles input[type="checkbox"]:focus-visible + span::before {
    outline: 2px solid var(--crimson);
    outline-offset: 2px;
  }
  .studio-toggles input[type="checkbox"]:checked + span::before {
    background-color: var(--crimson);
    border-color: var(--crimson);
  }
  .studio-toggles input[type="checkbox"]:checked + span::after {
    content: "✓";
    position: absolute;
    inset-inline-start: 0.2rem;
    inset-block-start: 50%;
    transform: translateY(-50%);
    color: #FFFFFF;
    font-weight: 700;
    font-size: 0.78rem;
  }
}

.confetti-callout {
  background: var(--forest-soft);
  border: 1px solid color-mix(in srgb, var(--forest) 35%, transparent);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  font-size: 0.8rem;
  margin-block-top: 0.45rem;
}

.canvas-stage {
  background: var(--bg-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 0.9rem;
  overflow: hidden;
}

.stage-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-block-end: 0.7rem;
}

.tool-seg {
  display: inline-flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.18rem;
  gap: 0.18rem;
  flex-wrap: wrap;
}

.seg-btn {
  background: transparent;
  border: none;
  color: var(--ink-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.32rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
}

.seg-btn.active {
  background: var(--ink);
  color: var(--bg-card);
}

.canvas-scroll {
  width: 100%;
  max-width: 100%;
  flex: 1;
  max-height: 620px;
  overflow: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
}

.canvas-scroll > canvas {
  margin: auto;
}

canvas {
  display: block;
  cursor: crosshair;
}

/* Metrics & Palette List */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
  margin-block-end: 0.9rem;
}

.stat-box {
  background: var(--bg-linen);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.65rem;
}

.stat-box .k {
  font-size: 0.72rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-box .v {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
}

.palette-scroll {
  max-height: 230px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-linen);
  padding: 0.4rem;
  margin-block-end: 0.9rem;
}

.floss-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
  padding: 0.3rem 0.4rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.floss-row:hover,
.floss-row.active {
  background: var(--bg-card);
  outline: 1px solid var(--brass);
}

.swatch-dot {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  font-size: 0.68rem;
  font-weight: 700;
}

.swatch-dot.is-blend {
  border-color: rgba(0, 0, 0, 0.34);
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.55);
}

/* Action Buttons */
.btn-primary,
.btn-secondary,
.btn-brass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
  padding: 0.68rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  margin-block-end: 0.5rem;
  transition: transform 0.1s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--crimson);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--crimson-hover);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--bg-panel);
  color: var(--ink);
  border: 1px solid var(--border-strong);
}

.btn-brass {
  background: var(--forest);
  color: #FFFFFF;
}

/* Calculator & Two-Column Tool Layouts */
.calc-layout {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.4rem;
}

@media (max-width: 900px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }
}

.result-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.85rem;
  margin-block-end: 1.1rem;
}

.result-card {
  background: var(--bg-linen);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.95rem 1.05rem;
}

.result-card.highlight {
  border-color: var(--crimson);
  background: var(--crimson-soft);
}

.result-card .label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.result-card .big {
  font-family: var(--font-mono);
  font-size: 1.38rem;
  font-weight: 700;
  color: var(--ink);
  margin-block: 0.25rem;
}

.result-card .sub {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* Modern Web Guidance: Responsive Sticky Data Table (@container) */
.table-wrapper {
  overflow: auto;
  max-inline-size: 100%;
  max-block-size: min(560px, 78vh);
  container-type: inline-size;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.table-wrapper table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

.table-wrapper caption {
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: 700;
  color: var(--ink-muted);
  background: var(--bg-panel);
  border-block-end: 1px solid var(--border);
}

.table-wrapper thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
  background: var(--bg-panel);
}

.table-wrapper th,
.table-wrapper td {
  padding: 0.62rem 0.85rem;
  border-block-end: 1px solid var(--border);
  text-align: left;
}

.table-wrapper tbody th {
  position: sticky;
  inset-inline-start: 0;
  z-index: 1;
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-weight: 700;
}

@container (width < 600px) {
  .table-wrapper table,
  .table-wrapper thead,
  .table-wrapper tbody,
  .table-wrapper tr,
  .table-wrapper th,
  .table-wrapper td {
    display: block;
  }
  .table-wrapper thead {
    display: none;
  }
  .table-wrapper tr {
    margin: 0.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
  }
  .table-wrapper tbody th {
    position: sticky;
    inset-block-start: 0;
    z-index: 2;
    background: var(--bg-panel);
  }
  .table-wrapper td:nth-child(2)::before { content: var(--label-2, "Swatch") ": "; font-weight: 700; }
  .table-wrapper td:nth-child(3)::before { content: var(--label-3, "Name") ": "; font-weight: 700; }
  .table-wrapper td:nth-child(4)::before { content: var(--label-4, "Hex") ": "; font-weight: 700; }
  .table-wrapper td:nth-child(5)::before { content: var(--label-5, "Family") ": "; font-weight: 700; }
  .table-wrapper td:nth-child(6)::before { content: var(--label-6, "Anchor") ": "; font-weight: 700; }
  .table-wrapper td:nth-child(7)::before { content: var(--label-7, "Stash") ": "; font-weight: 700; }
}

/* Modern Web Guidance: Offscreen Content Rendering Deferral */
.heavy-section-deferred {
  content-visibility: auto;
  contain-intrinsic-size: auto none auto 220px;
}

/* Editorial Content Sections & Compact Bento Progressive Disclosure */
.content-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1rem, 2vw, 1.4rem);
  margin-block-end: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.content-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.18rem, 1.9vw, 1.45rem);
  margin-block: 0 0.55rem;
  color: var(--ink);
}

.content-section h3 {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  margin-block: 0.85rem 0.35rem;
  color: var(--ink);
}

.content-section p {
  font-size: 0.92rem;
  line-height: 1.58;
  margin-block: 0 0.65rem;
}

.content-section p:last-child {
  margin-block-end: 0;
}

/* Two-Column Bento Split for Intro + Visual Diagram */
.bento-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.85fr);
  gap: 1.25rem;
  align-items: safe center;
}

.bento-prose-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
  align-items: start;
}

@media (max-width: 860px) {
  .bento-overview,
  .bento-prose-cols {
    grid-template-columns: 1fr;
  }
}

.bento-overview .figure-box {
  margin: 0;
  background: var(--bg-linen);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem;
}

/* Native <details> Brass Atelier Reference Drawers (SEO 100% Indexed + Ctrl-F Auto-Open) */
.atelier-handbook {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-block-end: 0.95rem;
}

details.atelier-drawer {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-inline-start: 4px solid var(--brass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: clip;
}

details.atelier-drawer[open] {
  border-inline-start-color: var(--crimson);
}

details.atelier-drawer > summary {
  list-style: none;
  display: flex;
  align-items: safe center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem 1.15rem;
  cursor: pointer;
  user-select: none;
  background: linear-gradient(90deg, var(--brass-soft), var(--bg-card) 55%);
}

details.atelier-drawer > summary::-webkit-details-marker {
  display: none;
}

details.atelier-drawer > summary h2,
details.atelier-drawer > summary h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  margin: 0;
  color: var(--ink);
}

details.atelier-drawer > summary::after {
  content: "";
  inline-size: 0.55rem;
  block-size: 0.55rem;
  border-inline-end: 2px solid var(--crimson);
  border-block-end: 2px solid var(--crimson);
  rotate: 45deg;
  flex-shrink: 0;
  transition: rotate 0.2s ease;
}

details.atelier-drawer[open] > summary::after {
  rotate: -135deg;
}

.drawer-body {
  padding: 0.95rem 1.15rem 1.15rem;
  border-block-start: 1px solid var(--border);
}

.drawer-body p {
  font-size: 0.91rem;
  line-height: 1.58;
  margin-block: 0 0.65rem;
}

@supports selector(::details-content) {
  details.atelier-drawer::details-content,
  .faq-list details::details-content {
    block-size: 0;
    overflow: clip;
    transition: block-size 0.28s ease, content-visibility 0.28s ease allow-discrete;
  }
  details.atelier-drawer[open]::details-content,
  .faq-list details[open]::details-content {
    block-size: auto;
  }
}

.steps-grid,
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-block-top: 0.75rem;
}

ol.steps-list {
  list-style: none;
  padding: 0;
  margin-inline: 0;
  margin-block-end: 0;
}

.anchor-jump-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin-block-top: 0.65rem;
}

.anchor-jump-bar a {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.24rem 0.68rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--ink);
  text-decoration: none;
}

.anchor-jump-bar a:hover {
  border-color: var(--crimson);
  color: var(--crimson);
}

.dmc-expand-bar {
  display: flex;
  justify-content: center;
  padding: 0.75rem 0 0.15rem;
}

/* Compact Balanced Pill Dock for Related Studio Tools */
.hub-strip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  margin-block-end: 0.95rem;
}

.hub-strip h3 {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  margin: 0 0 0.55rem;
  color: var(--ink);
}

.hub-grid {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.55rem;
  margin-block-top: 0.45rem;
}

.hub-grid .info-card {
  flex: 1 1 240px;
  padding: 0.58rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.hub-grid .info-card:hover {
  border-color: var(--crimson);
  background: var(--crimson-soft);
}

.hub-grid .info-card p {
  font-size: 0.78rem !important;
  line-height: 1.38;
  margin: 0.2rem 0 0 !important;
}

.info-card {
  background: var(--bg-linen);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.82rem 0.95rem;
}

.info-card h3 {
  font-size: 0.96rem;
  margin-block: 0 0.3rem;
}

.info-card p {
  font-size: 0.84rem;
  line-height: 1.48;
  margin: 0;
}

.step-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--crimson);
  color: #FFFFFF;
  padding: 0.12rem 0.48rem;
  border-radius: 999px;
  margin-block-end: 0.35rem;
}

.figure-box {
  margin: 0.75rem 0;
  text-align: center;
}

.figure-box img {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
  margin-inline: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.figure-box figcaption {
  font-size: 0.76rem;
  color: var(--ink-muted);
  margin-block-top: 0.35rem;
}

/* Two-Column Compact FAQ Accordion */
.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 0.9rem;
  align-items: start;
}

@media (max-width: 820px) {
  .faq-list {
    grid-template-columns: 1fr;
  }
}

.faq-list details {
  background: var(--bg-linen);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.62rem 0.85rem;
}

.faq-list details[open] {
  background: var(--bg-card);
  border-color: var(--brass);
}

.faq-list summary {
  font-weight: 700;
  font-size: 0.88rem;
  line-height: 1.38;
  cursor: pointer;
  color: var(--ink);
}

.faq-list p {
  font-size: 0.84rem;
  line-height: 1.52;
  margin: 0.48rem 0 0.1rem;
  color: var(--ink-muted);
}

@media (prefers-reduced-motion: reduce) {
  details.atelier-drawer > summary::after,
  details.atelier-drawer::details-content,
  .faq-list details::details-content {
    transition: none !important;
  }
}

/* Modern Web Guidance: Light-Dismiss Modal Dialog */
dialog.atelier-dialog {
  max-width: 580px;
  width: calc(100% - 2rem);
  border: 1.5px solid var(--brass);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  color: var(--ink);
  padding: 1.6rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

dialog.atelier-dialog::backdrop {
  background-color: rgba(20, 18, 15, 0.56);
  backdrop-filter: blur(3px);
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
  margin-block: 1rem;
}

.tier-card {
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1rem;
  background: var(--bg-linen);
}

.tier-card.featured {
  border-color: var(--crimson);
  background: var(--crimson-soft);
}

/* Footer */
.site-footer {
  border-block-start: 1px solid var(--border);
  background: var(--bg-panel);
  padding-block: 1.35rem;
  margin-block-top: 1.4rem;
  font-size: 0.84rem;
  color: var(--ink-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-block-end: 0.4rem;
}

/* Printable Symbol Sheet View */
.print-sheet {
  display: none;
}

@media print {
  .site-header, .site-footer, .studio-sidebar, .preset-bar, .stage-toolbar, .content-section, .atelier-handbook, .hub-strip, dialog {
    display: none !important;
  }
  .heavy-section-deferred {
    content-visibility: visible !important;
    contain-intrinsic-size: auto !important;
  }
  body, .workbench {
    background: #FFFFFF !important;
    border: none !important;
    box-shadow: none !important;
  }
  .studio-grid {
    display: block !important;
  }
  .print-sheet {
    display: block !important;
    padding: 0.5cm;
  }
}