/* ──────────────────────────────────────────────────────────────
   weasel workflow guide · stylesheet
   fonts: Libre Baskerville · Source Sans 3 · JetBrains Mono
   ────────────────────────────────────────────────────────────── */

:root {
  --bg:           #f7f4ef;
  --bg-alt:       #eeebe4;
  --bg-code:      #ece8e0;
  --ink:          #1a1815;
  --ink-2:        #47433c;
  --ink-3:        #8a8178;
  --navy:         #1b3557;
  --navy-light:   #e8edf4;
  --navy-mid:     #c2cedb;
  --ochre:        #8b5e1a;
  --ochre-light:  #f5ead8;
  --ochre-mid:    #e0cba8;
  --green:        #1d4d32;
  --green-light:  #e3efe8;
  --green-mid:    #b4d4c1;
  --yes:          #1b3557;
  --yes-bg:       #e8edf4;
  --no:           #4a4540;
  --no-bg:        #eeebe4;
  --border:       #d6d1c8;
  --border-2:     #bfbab0;
  --radius:       4px;
  --radius-lg:    8px;
  --shadow:       0 2px 12px rgba(26,24,21,.08);
  --transition:   180ms ease;
  --font-serif:   'Libre Baskerville', Georgia, serif;
  --font-sans:    'Source Sans 3', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ─── HEADER ────────────────────────────────────────────────── */

.site-header {
  padding: 2rem 0 1.25rem;
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: .6rem;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -.02em;
}

.brand-version {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-3);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: .1em .45em;
  border-radius: 3px;
}

.brand-full {
  font-size: .8rem;
  font-weight: 300;
  color: var(--ink-3);
  letter-spacing: .01em;
  text-transform: uppercase;
}

.header-rule {
  height: 2px;
  background: linear-gradient(to right, var(--navy) 0%, var(--navy) 60px, var(--border) 60px);
  margin-top: 1rem;
}

/* ─── INTRO ─────────────────────────────────────────────────── */

.intro-section {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}

.intro-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.intro-headline {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -.01em;
}

.intro-lede {
  font-size: 1rem;
  color: var(--ink-2);
  max-width: 680px;
  line-height: 1.75;
}

.intro-lede strong { color: var(--ink); font-weight: 600; }

/* overview grid */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 1.5rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.ov-heading {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-3);
  margin-bottom: .75rem;
}

.ov-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.ov-list li {
  font-size: .9rem;
  color: var(--ink-2);
  padding-left: 1.1rem;
  position: relative;
}

.ov-list li::before { content: '–'; position: absolute; left: 0; color: var(--ink-3); }

/* pipeline pair */
.pipeline-pair {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}

.pip-block {
  flex: 1;
  min-width: 110px;
  padding: .75rem .9rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.pip-scope { background: var(--navy-light); border: 1px solid var(--navy-mid); }
.pip-plan  { background: var(--ochre-light); border: 1px solid var(--ochre-mid); }

.pip-label {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .09em;
}

.pip-scope .pip-label { color: var(--navy); }
.pip-plan  .pip-label { color: var(--ochre); }
.pip-desc  { font-size: .8rem; line-height: 1.5; color: var(--ink-2); }

.pip-arrow { font-size: 1.2rem; color: var(--ink-3); flex-shrink: 0; }

/* cue */
.intro-cue {
  font-size: .9rem;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: .5rem;
  font-style: italic;
}

.cue-arrow {
  display: inline-block;
  color: var(--navy);
  font-size: 1.1rem;
  font-style: normal;
  animation: bob 2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(4px); }
}

/* ─── TREE SECTION ──────────────────────────────────────────── */

.tree-section { padding: 2.5rem 0 4rem; }
.tree-inner { display: flex; flex-direction: column; gap: 0; }

/* ─── PATH TRAIL ────────────────────────────────────────────── */

.path-trail { margin-bottom: 1rem; }

.trail-items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem;
  padding: .65rem 1rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .78rem;
  color: var(--ink-3);
}

.trail-item { display: flex; align-items: center; gap: .35rem; }
.trail-q    { color: var(--ink-3); font-style: italic; }
.trail-sep  { color: var(--border-2); }
.trail-chevron { color: var(--border-2); font-size: .7rem; }

.trail-a--yes { color: var(--navy); font-weight: 500; }
.trail-a--no  { color: var(--no);   font-weight: 500; }

.trail-restart {
  margin-left: auto;
  font-size: .75rem;
  color: var(--ink-3);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .2em .7em;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: var(--transition);
  flex-shrink: 0;
}

.trail-restart:hover {
  color: var(--ink);
  border-color: var(--ink-3);
  background: var(--bg);
}

/* ─── NODE CARD ─────────────────────────────────────────────── */

.node-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow);
  animation: slideUp .28s cubic-bezier(.22,.68,0,1.1) both;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.q-step-label {
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-3);
  margin-bottom: .75rem;
  display: block;
}

.q-question {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: .75rem;
}

.q-explanation {
  font-size: .88rem;
  color: var(--ink-2);
  line-height: 1.65;
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

/* ─── YES / NO BUTTONS ──────────────────────────────────────── */

.yn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}

.yn-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .4rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  font-family: var(--font-sans);
  text-align: left;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  position: relative;
}

.yn-btn:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

/* yes button */
.yn-yes {
  border-top: 3px solid var(--navy);
}

.yn-yes:hover {
  background: var(--yes-bg);
  border-color: var(--navy);
  border-top-color: var(--navy);
  box-shadow: 0 2px 10px rgba(27,53,87,.12);
}

/* no button */
.yn-no {
  border-top: 3px solid var(--border-2);
}

.yn-no:hover {
  background: var(--no-bg);
  border-color: var(--border-2);
  border-top-color: var(--no);
  box-shadow: 0 2px 10px rgba(26,24,21,.07);
}

/* marker label (Yes / No) */
.yn-marker {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  line-height: 1;
}

.yn-yes .yn-marker { color: var(--navy); }
.yn-no  .yn-marker { color: var(--ink-3); }

/* full label text */
.yn-text {
  font-size: .88rem;
  font-weight: 400;
  color: var(--ink-2);
  line-height: 1.4;
}

.yn-yes:hover .yn-text { color: var(--ink); }
.yn-no:hover  .yn-text { color: var(--ink); }

/* ─── RESULT CARD ───────────────────────────────────────────── */

.result-card {
  border-top: 3px solid var(--navy);
}

.result-demo-card {
  border-top-color: var(--green);
}

.result-badge {
  display: inline-flex;
  align-items: center;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .22em .7em;
  border-radius: 3px;
  margin-bottom: 1rem;
}

.badge-scope { background: var(--navy-light);  color: var(--navy);  border: 1px solid var(--navy-mid);  }
.badge-plan  { background: var(--ochre-light); color: var(--ochre); border: 1px solid var(--ochre-mid); }
.badge-demo  { background: var(--green-light); color: var(--green); border: 1px solid var(--green-mid); }

.result-heading {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: .75rem;
}

.result-summary {
  font-size: .9rem;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}

/* workflow steps */
.workflow-label {
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-3);
  margin-bottom: .9rem;
  display: block;
}

.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  margin-bottom: 1.75rem;
}

.step-row {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
}

.step-num {
  flex-shrink: 0;
  width: 1.45rem;
  height: 1.45rem;
  background: var(--navy);
  color: white;
  font-size: .65rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: .12rem;
}

.step-body {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  flex: 1;
}

.step-fn {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--navy);
  font-weight: 500;
  word-break: break-word;
}

.step-note {
  font-size: .78rem;
  color: var(--ink-3);
  line-height: 1.4;
}

/* code block */
.code-wrapper {
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.code-header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: .4rem .9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.code-lang {
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-3);
}

.code-copy-btn {
  font-size: .7rem;
  font-family: var(--font-sans);
  color: var(--ink-3);
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: .15em .55em;
  cursor: pointer;
  transition: var(--transition);
}

.code-copy-btn:hover { color: var(--ink); border-color: var(--ink-3); background: var(--bg); }
.code-copy-btn.copied { color: var(--green); border-color: var(--green-mid); background: var(--green-light); }

.code-block {
  background: var(--bg-code);
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.75;
  color: var(--ink);
  white-space: pre;
  display: block;
}

/* info note */
.result-note {
  margin-bottom: 1.5rem;
  padding: .75rem 1rem;
  background: var(--ochre-light);
  border: 1px solid var(--ochre-mid);
  border-radius: var(--radius);
  font-size: .83rem;
  color: var(--ochre);
  line-height: 1.55;
  display: flex;
  gap: .5rem;
}

.note-icon { flex-shrink: 0; font-style: normal; font-weight: 700; opacity: .7; }

/* restart button */
.btn-restart {
  font-family: var(--font-sans);
  font-size: .83rem;
  color: var(--ink-3);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .45em 1em;
  cursor: pointer;
  transition: var(--transition);
}

.btn-restart:hover { color: var(--ink); border-color: var(--ink-3); background: var(--bg-alt); }

/* ─── FOOTER ────────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  font-size: .78rem;
  color: var(--ink-3);
}

.footer-sep { color: var(--border-2); }

.install-line {
  font-family: var(--font-mono);
  font-size: .75rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: .1em .4em;
  border-radius: 3px;
  color: var(--ink-2);
}

code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: .05em .35em;
  border-radius: 3px;
  color: var(--navy);
}

/* ─── RESPONSIVE ────────────────────────────────────────────── */

@media (max-width: 640px) {
  .container { padding: 0 1.25rem; }

  .overview-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  .pipeline-pair { flex-direction: column; gap: .5rem; }
  .pip-arrow { transform: rotate(90deg); }

  .node-card { padding: 1.4rem 1.25rem; }

  .yn-group { grid-template-columns: 1fr; }

  .trail-items { flex-direction: column; align-items: flex-start; }
  .trail-restart { margin-left: 0; }
}