/* ==================================================================
   workshop.css — field-guide practicum styling.
   Matches the Anatomy plate visual register: cream parchment, hair
   borders, small-caps serif headings, rust accents.
   Scoped to .workshop-section.
   ================================================================== */

.workshop-section {
  --cream:   #f5efe2;
  --cream-2: #ede5d3;
  --ink:     #2a2a2a;
  --ink-2:   #4a4438;
  --rust:    #b54a2a;
  --rust-2:  #8a3818;
  --navy:    #1f3a5f;
  --ochre:   #c7943d;
  --moss:    #5a7345;
  --hair:    #a89c80;

  --display: "Cormorant Garamond", "Source Serif Pro", Georgia, serif;
  --body:    "Crimson Pro", "Source Serif Pro", Georgia, serif;
  --label:   "Crimson Pro", Georgia, serif;
  --code:    "Source Serif Pro", "SF Mono", Menlo, Consolas, monospace;

  /* Break out of 720px */
  max-width: 1100px !important;
  margin-left: auto;
  margin-right: auto;
  padding: 3rem 2rem 4rem;
  background: var(--cream);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(199,148,61,0.08) 0%, transparent 38%),
    radial-gradient(circle at 88% 76%, rgba(31,58,95,0.07) 0%, transparent 42%),
    radial-gradient(circle at 50% 50%, rgba(181,74,42,0.04) 0%, transparent 60%);
  color: var(--ink);
  font-family: var(--body);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  position: relative;
}

.workshop-section::before {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg,
      transparent 0px, transparent 3px,
      rgba(74,68,56,0.018) 3px, rgba(74,68,56,0.018) 4px),
    repeating-linear-gradient(90deg,
      transparent 0px, transparent 3px,
      rgba(74,68,56,0.018) 3px, rgba(74,68,56,0.018) 4px);
  mix-blend-mode: multiply;
  opacity: 0.7;
}

.workshop-section > * { position: relative; z-index: 1; max-width: none; }

/* Heading */
.workshop-section > h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: 2.4rem;
  color: var(--ink);
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 0.6rem;
  margin: 0 0 0.4rem;
  font-variant: normal;
  text-transform: none;
}
.workshop-section > h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 2px;
  background: var(--rust);
  margin-top: 0.55rem;
}
.workshop-section > h2 .ws-sub {
  display: block;
  font-family: var(--display);
  font-style: italic;
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--ink-2);
  margin-top: 0.4rem;
  letter-spacing: 0.01em;
}

.workshop-section .ws-lede {
  font-family: var(--body);
  font-size: 1.05rem;
  color: var(--ink);
  font-style: normal;
  margin: 0 0 2.5rem;
}
.workshop-section .ws-lede em {
  color: var(--rust);
  font-style: italic;
}

/* Each "fragment" — a sub-section */
.workshop-fragment {
  background:
    linear-gradient(180deg, rgba(255,253,247,0.55), rgba(245,239,226,0.0) 80%),
    var(--cream);
  border: 1px solid var(--hair);
  border-radius: 2px;
  margin: 0 0 3rem;
  padding: 1.8rem 2rem 2rem;
  box-shadow:
    0 1px 0 rgba(74,68,56,0.05),
    0 12px 26px -16px rgba(42,42,42,0.25),
    inset 0 0 0 1px rgba(255,255,255,0.4);
  position: relative;
}

.workshop-fragment::before {
  content: "";
  position: absolute;
  top: 8px; left: 8px; right: 8px; bottom: 8px;
  border: 1px solid rgba(168,156,128,0.45);
  pointer-events: none;
  border-radius: 1px;
}

.workshop-fragment > * {
  position: relative;
  z-index: 1;
  /* Override main.css `article > *` max-width: 720px (which targets
     fragment children because <article class="workshop-fragment"> is
     itself an article). */
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}

.workshop-fragment .ws-num {
  font-family: var(--display);
  font-variant: small-caps;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  color: var(--rust);
  display: block;
  margin-bottom: 0.3rem;
}
.workshop-fragment .ws-num em {
  font-style: normal;
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--rust);
  margin-left: 0.4em;
  font-weight: 600;
  vertical-align: -0.05em;
}

.workshop-fragment h4 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--ink);
  margin: 0 0 0.8rem;
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 0.6rem;
}

.workshop-fragment .ws-prose {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 1.2rem;
}
.workshop-fragment .ws-prose em {
  color: var(--rust);
  font-style: italic;
}
.workshop-fragment .ws-prose strong {
  color: var(--ink);
  font-weight: 600;
}

/* Code-block header (small-caps label) */
.workshop-fragment .ws-codelabel {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.2em;
  font-size: 0.78rem;
  color: var(--ink-2);
  margin: 0.6rem 0 0.4rem;
  display: block;
}

/* Code block — parchment with hair border, monospace only for code text */
.workshop-fragment pre.ws-code {
  background: rgba(253,250,242,0.7);
  border: 1px solid var(--hair);
  border-radius: 2px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  margin: 0 0 0.8rem;
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  white-space: pre;
  color: var(--ink);
}
.workshop-fragment pre.ws-code code {
  background: transparent;
  padding: 0;
  font-size: inherit;
  font-family: inherit;
  color: inherit;
}

/* Prism recolouring — use the field-guide palette */
.workshop-section .token.comment,
.workshop-section .token.prolog,
.workshop-section .token.doctype,
.workshop-section .token.cdata {
  color: var(--ink-2);
  font-style: italic;
}
.workshop-section .token.keyword { color: var(--rust); font-weight: 600; }
.workshop-section .token.builtin { color: var(--navy); }
.workshop-section .token.string  { color: var(--moss); }
.workshop-section .token.number  { color: var(--rust-2); }
.workshop-section .token.operator,
.workshop-section .token.punctuation { color: var(--ink); }
.workshop-section .token.function { color: var(--navy); font-weight: 600; }

/* Run button — match the rest of the site (small-caps cream/rust) */
.workshop-fragment .ws-controls {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  margin: 0.8rem 0 1rem;
  flex-wrap: wrap;
}

.workshop-fragment .ws-run {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  background: var(--cream);
  color: var(--ink);
  border: 1px solid var(--rust);
  border-radius: 2px;
  padding: 0.5em 1.4em;
  cursor: pointer;
  transition: all 0.12s ease;
}
.workshop-fragment .ws-run:hover {
  background: var(--rust);
  color: #fdfaf2;
}
.workshop-fragment .ws-run:active { transform: translateY(1px); }

.workshop-fragment .ws-hint {
  font-family: var(--body);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-2);
}

/* Engraved divider before output */
.workshop-fragment .ws-divider {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin: 1rem 0 0.5rem;
}
.workshop-fragment .ws-divider::before,
.workshop-fragment .ws-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--hair);
}
.workshop-fragment .ws-divider-label {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  color: var(--rust);
}

/* Output area — cream with hair border, mono for the actual values */
.workshop-fragment .ws-out {
  background: rgba(253,250,242,0.55);
  border: 1px solid rgba(168,156,128,0.6);
  border-radius: 2px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 0.8rem;
  line-height: 1.55;
  padding: 0.9rem 1.1rem;
  white-space: pre-wrap;
  color: var(--ink);
  min-height: 1.2em;
}
.workshop-fragment .ws-out.empty {
  color: var(--ink-2);
  font-style: italic;
  font-family: var(--body);
  font-size: 0.95rem;
}
.workshop-fragment .ws-out .nb-out-line { display: block; }
.workshop-fragment .ws-out .nb-out-line.dim  { color: var(--ink-2); }
.workshop-fragment .ws-out .nb-out-line.warn { color: var(--rust-2); }
.workshop-fragment .ws-out .nb-out-line.ok   { color: var(--moss); }
.workshop-fragment .ws-out svg { display: block; margin-top: 8px; }

/* Takeaway — italic body serif, rust left border, small indent */
.workshop-fragment .ws-takeaway {
  margin: 1.1rem 0 0;
  padding: 0.4rem 0 0.4rem 0.9rem;
  border-left: 2px solid var(--rust);
  font-family: var(--body);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--ink);
  background: transparent;
}
.workshop-fragment .ws-takeaway em {
  color: var(--rust);
  font-style: italic;
}

/* Summary list (final fragment) */
.workshop-fragment .ws-summary {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.65;
}
.workshop-fragment .ws-summary li {
  padding: 0.1em 0 0.1em 1.6em;
  position: relative;
}
.workshop-fragment .ws-summary li.ok::before {
  content: "\2713";
  color: var(--moss);
  position: absolute;
  left: 0;
  font-weight: 700;
}
.workshop-fragment .ws-summary li.no::before {
  content: "\2717";
  color: var(--rust);
  position: absolute;
  left: 0;
  font-weight: 700;
}

.workshop-fragment .ws-foot {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--ink-2);
  margin-top: 1.2rem;
  text-align: center;
  border-top: 1px solid rgba(168,156,128,0.5);
  padding-top: 0.7rem;
}

@media (max-width: 700px) {
  .workshop-section { padding: 2rem 1rem; }
  .workshop-fragment { padding: 1.2rem 1rem; }
  .workshop-fragment h4 { font-size: 1.2rem; }
}

/* ================================================================
   Stepper UI — step-by-step code walkthrough
   ================================================================ */

/* Line-highlighting overlay */
.workshop-fragment pre.ws-code .ws-line {
  display: inline;
  position: relative;
  transition: background-color 0.2s ease, opacity 0.2s ease;
  padding: 0 0.15em;
  margin: 0 -0.15em;
  border-radius: 1px;
}
.workshop-fragment pre.ws-code .ws-line.ws-line-dim {
  opacity: 0.45;
}
.workshop-fragment pre.ws-code .ws-line.ws-line-active {
  background-color: rgba(181, 74, 42, 0.16);
  box-shadow:
    inset 2px 0 0 0 var(--rust),
    inset 0 -1px 0 0 rgba(181,74,42,0.18);
  opacity: 1;
}

/* The whole stepper region */
.workshop-fragment .ws-stepper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1rem;
  margin: 0.6rem 0 0.4rem;
}
.workshop-fragment .ws-stepper > .ws-step-card { grid-column: 1; grid-row: 1; }
.workshop-fragment .ws-stepper > .ws-state-card { grid-column: 2; grid-row: 1 / span 2; }
.workshop-fragment .ws-stepper > .ws-step-controls { grid-column: 1; grid-row: 2; align-self: end; }

@media (max-width: 820px) {
  .workshop-fragment .ws-stepper {
    grid-template-columns: 1fr;
  }
  .workshop-fragment .ws-stepper > .ws-step-card,
  .workshop-fragment .ws-stepper > .ws-state-card,
  .workshop-fragment .ws-stepper > .ws-step-controls {
    grid-column: 1; grid-row: auto;
  }
}

/* Step explainer card — parchment box with rust top border */
.workshop-fragment .ws-step-card {
  background: rgba(253,250,242,0.7);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--rust);
  border-radius: 2px;
  padding: 0.7rem 0.95rem 0.8rem;
  min-height: 130px;
}
.workshop-fragment .ws-step-head {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid rgba(168,156,128,0.5);
}
.workshop-fragment .ws-step-counter {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--rust);
  font-weight: 600;
}
.workshop-fragment .ws-step-sep {
  color: var(--hair);
}
.workshop-fragment .ws-step-title {
  font-family: var(--display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.workshop-fragment .ws-step-explainer {
  font-family: var(--body);
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
}
.workshop-fragment .ws-step-explainer em {
  color: var(--rust);
  font-style: italic;
}

/* Live-state card */
.workshop-fragment .ws-state-card {
  background: rgba(253,250,242,0.55);
  border: 1px solid var(--hair);
  border-radius: 2px;
  padding: 0.6rem 0.8rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.workshop-fragment .ws-state-card-wide { /* used by 3 & 4 */ }
.workshop-fragment .ws-state-viewport {
  background: rgba(245,239,226,0.55);
  border: 1px solid rgba(168,156,128,0.4);
  border-radius: 2px;
  padding: 4px;
  position: relative;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.workshop-fragment .ws-state-viewport-dark {
  background: #0a0e17;
  border: 1px solid var(--hair);
}
.workshop-fragment .ws-state-viewport-split {
  /* visual two-panel divider drawn in SVG */
}
.workshop-fragment .ws-state-viewport svg.ws-state-svg {
  width: 100%;
  height: auto;
  display: block;
}
.workshop-fragment .ws-state-viewport .ws-state-svg-twin {
  min-height: 220px;
}

/* Readouts: tiny tables of numeric state */
.workshop-fragment .ws-state-readouts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.35rem 0.8rem;
  font-family: var(--code);
  font-size: 0.82rem;
}
.workshop-fragment .ws-state-readouts-grid {
  grid-template-columns: repeat(3, 1fr);
}
.workshop-fragment .ws-readout {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.18rem 0.4rem;
  border-bottom: 1px dotted rgba(168,156,128,0.5);
}
.workshop-fragment .ws-readout-label {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  color: var(--ink-2);
}
.workshop-fragment .ws-readout-val {
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  color: var(--ink);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

/* Step controls */
.workshop-fragment .ws-step-controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.workshop-fragment .ws-stepbtn {
  font-family: var(--display);
  font-variant: small-caps;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  background: var(--cream);
  color: var(--ink);
  border: 1px solid var(--rust);
  border-radius: 2px;
  padding: 0.45em 0.95em;
  cursor: pointer;
  transition: all 0.12s ease;
  line-height: 1.1;
}
.workshop-fragment .ws-stepbtn:hover:not(:disabled) {
  background: var(--rust);
  color: #fdfaf2;
}
.workshop-fragment .ws-stepbtn:active:not(:disabled) {
  transform: translateY(1px);
}
.workshop-fragment .ws-stepbtn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  border-color: var(--hair);
}
.workshop-fragment .ws-stepbtn-ghost {
  border-color: var(--hair);
  color: var(--ink-2);
}
.workshop-fragment .ws-stepbtn-ghost:hover:not(:disabled) {
  background: var(--ink-2);
  color: var(--cream);
  border-color: var(--ink-2);
}