/* ============================================================
   CUSTOM STYLES — How to Write a Journal Introduction
   Aesthetic: Refined editorial academic
   Fonts: Lora (body) + DM Sans (UI/labels)
   Zones: Purple (motivation) · Teal (positioning) · Amber (contribution)
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap');

/* ── Zone colour tokens ── */
:root {
  --zone-m-dark:   #3C3489;
  --zone-m-mid:    #7F77DD;
  --zone-m-light:  #EEEDFE;
  --zone-m-border: #AFA9EC;

  --zone-p-dark:   #0F6E56;
  --zone-p-mid:    #1D9E75;
  --zone-p-light:  #E1F5EE;
  --zone-p-border: #5DCAA5;

  --zone-c-dark:   #633806;
  --zone-c-mid:    #BA7517;
  --zone-c-light:  #FAEEDA;
  --zone-c-border: #EF9F27;

  --ink:           #1a1a1a;
  --ink-secondary: #4a4a4a;
  --ink-tertiary:  #7a7a7a;
  --surface:       #ffffff;
  --surface-2:     #f8f7f4;
  --border:        #e4e1d8;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
}

/* ── Base typography ── */
body {
  font-family: 'Lora', Georgia, serif;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  background-color: var(--surface);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
}

/* ── Main title ── */
.quarto-title h1.title {
  font-family: 'DM Sans', sans-serif;
  font-size: 2.6rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.quarto-title .subtitle {
  font-family: 'Lora', serif;
  font-size: 1.15rem;
  font-weight: 400;
  font-style: italic;
  color: var(--ink-secondary);
  margin-top: 0;
}

/* Author / date */
.quarto-title-meta {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  color: var(--ink-tertiary);
  letter-spacing: 0.03em;
}

/* ── Article container ── */
#quarto-content .column-body,
#quarto-document-content {
  max-width: 760px;
}

/* ── Section headings ── */
h2 {
  font-size: 1.45rem;
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

h3 {
  font-size: 1.15rem;
  margin-top: 2.2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-tertiary);
  margin-top: 1.8rem;
  margin-bottom: 0.5rem;
}

/* ── Zone-coloured h2 headings ── */
h2[id*="zone-1"],
h2[id*="motivation"],
h2[id*="zone-2"],
h2[id*="positioning"],
h2[id*="zone-3"],
h2[id*="contribution"] {
  border-bottom-width: 2px;
}

/* ── Paragraphs ── */
p {
  margin-bottom: 1.1rem;
}

/* ── Lead paragraph (opening quote) ── */
.lead, blockquote p:only-child {
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink-secondary);
  border-left: 3px solid var(--border);
  padding-left: 1.2rem;
  margin: 1.5rem 0;
}

/* ── Blockquotes (skeleton sentences) ── */
blockquote {
  border-left: 3px solid var(--zone-m-border);
  background: var(--surface-2);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 0.5rem 1.1rem;
  margin: 0.5rem 0 0.5rem 0;
  font-family: 'DM Mono', monospace;
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--ink-secondary);
}

blockquote p {
  margin: 0;
}

blockquote em {
  font-style: normal;
  color: var(--ink);
  font-weight: 500;
}

/* ── Step number pills ── */
/* We use h3 prefixes like "Step 1 —" */
h3 .step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 700;
  color: white;
  margin-right: 0.4rem;
  vertical-align: middle;
}

/* ── Zone accent: section wrappers ── */
.zone-motivation { --zone-accent: var(--zone-m-mid); --zone-bg: var(--zone-m-light); --zone-dark: var(--zone-m-dark); }
.zone-positioning { --zone-accent: var(--zone-p-mid); --zone-bg: var(--zone-p-light); --zone-dark: var(--zone-p-dark); }
.zone-contribution { --zone-accent: var(--zone-c-mid); --zone-bg: var(--zone-c-light); --zone-dark: var(--zone-c-dark); }

/* Zone label pill — used in h2 suffixes */
.zone-pill {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  vertical-align: middle;
  margin-left: 0.5rem;
}

/* ── Callout boxes — Quarto defaults override ── */
.callout {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  line-height: 1.65;
  border-radius: var(--radius-md);
  border-left-width: 4px;
  margin: 1.6rem 0;
}

.callout-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* Note (example text) → subtle warm surface */
div.callout-note {
  background-color: #fafaf8;
  border-left-color: #c8c4b4;
}

div.callout-note .callout-title-container {
  color: #6b6456;
}

div.callout-note .callout-body {
  font-family: 'Lora', serif;
  font-size: 0.95rem;
  color: var(--ink);
  font-style: italic;
}

/* Tip → zone-positioning green */
div.callout-tip {
  background-color: var(--zone-p-light);
  border-left-color: var(--zone-p-mid);
}

div.callout-tip .callout-title-container {
  color: var(--zone-p-dark);
}

/* Warning → soft amber */
div.callout-warning {
  background-color: #fffbf0;
  border-left-color: var(--zone-c-mid);
}

div.callout-warning .callout-title-container {
  color: var(--zone-c-dark);
}

/* Important → zone-motivation purple */
div.callout-important {
  background-color: var(--zone-m-light);
  border-left-color: var(--zone-m-mid);
}

div.callout-important .callout-title-container {
  color: var(--zone-m-dark);
}

/* ── Tables ── */
table {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  line-height: 1.5;
}

thead tr {
  background-color: var(--ink);
  color: white;
}

thead th {
  font-weight: 600;
  padding: 0.6rem 1rem;
  text-align: left;
  letter-spacing: 0.03em;
}

tbody tr {
  border-bottom: 1px solid var(--border);
}

tbody tr:nth-child(even) {
  background-color: var(--surface-2);
}

tbody td {
  padding: 0.55rem 1rem;
  vertical-align: top;
}

/* First column of tables (step numbers) */
tbody td:first-child {
  font-weight: 500;
  color: var(--ink-secondary);
  white-space: nowrap;
}

/* ── Mermaid diagram wrapper ── */
.mermaid {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 2rem 0;
  overflow-x: auto;
}

/* ── Horizontal rules ── */
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ── Code / mono (inline) ── */
code {
  font-family: 'DM Mono', monospace;
  font-size: 0.82em;
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.35em;
  color: var(--zone-m-dark);
}

/* ── TOC sidebar ── */
#TOC {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.83rem;
  line-height: 1.5;
}

#TOC .active {
  color: var(--zone-m-dark);
  font-weight: 500;
}

#TOC a {
  color: var(--ink-secondary);
  text-decoration: none;
}

#TOC a:hover {
  color: var(--zone-m-dark);
}

/* ── Zone section dividers (h2 with zone classes) ── */
h2.zone-motivation,
section h2.zone-motivation {
  color: var(--zone-m-dark);
  border-bottom-color: var(--zone-m-border);
}

h2.zone-positioning,
section h2.zone-positioning {
  color: var(--zone-p-dark);
  border-bottom-color: var(--zone-p-border);
}

h2.zone-contribution,
section h2.zone-contribution {
  color: var(--zone-c-dark);
  border-bottom-color: var(--zone-c-border);
}

/* ── Step h3 — left accent bar coloured by parent zone ── */
.zone-motivation h3 {
  padding-left: 0.9rem;
  border-left: 3px solid var(--zone-m-mid);
  margin-left: -0.9rem;
}

.zone-positioning h3 {
  padding-left: 0.9rem;
  border-left: 3px solid var(--zone-p-mid);
  margin-left: -0.9rem;
}

.zone-contribution h3 {
  padding-left: 0.9rem;
  border-left: 3px solid var(--zone-c-mid);
  margin-left: -0.9rem;
}

/* ── Blockquote zone tinting ── */
.zone-motivation blockquote {
  border-left-color: var(--zone-m-mid);
  background: var(--zone-m-light);
}

.zone-positioning blockquote {
  border-left-color: var(--zone-p-mid);
  background: var(--zone-p-light);
}

.zone-contribution blockquote {
  border-left-color: var(--zone-c-mid);
  background: var(--zone-c-light);
}

/* ── "Complete introduction" combined section ── */
div.callout-note .callout-body p strong {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  background-color: var(--ink);
  color: white;
  padding: 1px 7px;
  border-radius: var(--radius-pill);
  font-style: normal;
  vertical-align: middle;
  margin-right: 0.3rem;
}

/* ── Links ── */
a {
  color: var(--zone-m-dark);
  text-decoration-color: var(--zone-m-border);
  text-underline-offset: 3px;
  transition: color 0.15s;
}

a:hover {
  color: var(--zone-m-mid);
}

/* ── Checklist table — highlight step numbers ── */
table tbody td:nth-child(1) {
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  color: var(--ink-tertiary);
}

table tbody td:nth-child(3) {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
}

/* Zone pills in table */
table tbody td:nth-child(3):has-text("Motivation") {
  color: var(--zone-m-dark);
}

/* ── Closing thoughts ── */
.closing-note {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.8rem;
  margin-top: 2.5rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  color: var(--ink-secondary);
}

/* ── Footer ── */
.page-footer {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  color: var(--ink-tertiary);
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding-top: 1rem;
}

/* ── Print styles ── */
@media print {
  body { font-size: 11pt; }
  .callout { break-inside: avoid; }
  blockquote { break-inside: avoid; }
  h2, h3 { break-after: avoid; }
}

/* ── Mobile ── */
@media (max-width: 640px) {
  body { font-size: 15px; }
  .quarto-title h1.title { font-size: 1.9rem; }
  table { font-size: 0.8rem; }
  blockquote { font-size: 0.78rem; }
}