/* denverpeptidespecialist.com — Mobile-First Component Stylesheet
   Palette: Warm Botanical Paper, Sage, Terracotta, Ochre
   Markup convention: almost-classless semantic HTML + data attributes
   Typography: system-sans */

:root {
  --bg-paper: #F7F4EC;
  --bg-card: #EFEAD8;
  --bg-sage-tint: #E5EDE6;
  --bg-terracotta-tint: #F5E6DF;
  --bg-ochre-tint: #F4ECD6;
  --ink-primary: #1F261E;
  --ink-secondary: #3E4C3E;
  --ink-muted: #566656;
  --accent-sage: #24543B;
  --accent-sage-hover: #193D2A;
  --accent-terracotta: #9E4224;
  --accent-ochre: #7D5712;
  --border-soft: #D5CEB8;
  --border-strong: #B5AC92;
  --focus-ring: #24543B;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 10px rgba(31, 38, 30, 0.06);
}

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

html {
  font-family: var(--font-sans);
  font-size: 100%;
  line-height: 1.65;
  color: var(--ink-primary);
  background-color: var(--bg-paper);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-paper);
  color: var(--ink-primary);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

/* Accessibility & Skip Link */
body > a[href="#main-content"] {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  background: var(--accent-sage);
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

body > a[href="#main-content"]:focus {
  top: 1rem;
  outline: 3px solid var(--accent-terracotta);
  outline-offset: 2px;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Header & Topic-Cluster Navigation (Mobile-First) */
body > header {
  background-color: var(--bg-card);
  border-bottom: 2px solid var(--border-soft);
  padding: 1rem 1.125rem;
}

body > header > div {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

body > header a[rel="home"] {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-sage);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  letter-spacing: -0.01em;
}

body > header a[rel="home"]:hover {
  color: var(--accent-sage-hover);
  text-decoration: underline;
}

body > header p {
  margin: 0;
  font-size: 1rem;
  color: var(--ink-secondary);
}

/* Topic Cluster Navigation */
body > header nav {
  max-width: 72rem;
  margin: 0.75rem auto 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-soft);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
}

body > header nav section {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.75rem;
}

body > header nav section strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 0.35rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-soft);
}

body > header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
}

body > header nav li {
  margin: 0;
}

body > header nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.375rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-primary);
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

body > header nav a:hover {
  background-color: var(--bg-sage-tint);
  color: var(--accent-sage-hover);
  text-decoration: underline;
}

body > header nav a[aria-current="page"] {
  background-color: var(--accent-sage);
  color: #FFFFFF;
  font-weight: 600;
}

/* Main Layout Container */
main {
  flex: 1;
  width: 100%;
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.5rem 1.125rem 3rem;
}

/* Typography */
h1,
h2,
h3,
h4 {
  color: var(--ink-primary);
  font-weight: 700;
  line-height: 1.25;
  margin-top: 0;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

h1 {
  font-size: 1.875rem;
  margin-bottom: 1rem;
  color: var(--accent-sage-hover);
}

h2 {
  font-size: 1.45rem;
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--border-soft);
}

h3 {
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--accent-sage);
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
  max-width: 68ch;
}

ul,
ol {
  margin-top: 0;
  margin-bottom: 1.25rem;
  padding-left: 1.35rem;
  max-width: 68ch;
}

li {
  margin-bottom: 0.5rem;
}

li::marker {
  color: var(--accent-sage);
  font-weight: 700;
}

a {
  color: var(--accent-sage);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1.5px;
}

a:hover {
  color: var(--accent-terracotta);
}

/* Links retain a full, non-overlapping tap box even within a sentence. */
a {
  display: inline-block;
  min-width: 40px;
  min-height: 40px;
  max-width: 100%;
  line-height: 1.65;
  vertical-align: baseline;
  overflow-wrap: anywhere;
}

/* Inline Links & Tap Comfort */
main p a,
main li a,
main dd a,
main td a {
  padding: 0.375rem 0.125rem;
}

/* Intro Lead Article / Header Box */
main > article > header {
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-left: 6px solid var(--accent-sage);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.25rem 1rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-card);
}

main > article > header p {
  font-size: 1.1rem;
  color: var(--ink-secondary);
  margin-bottom: 0.75rem;
}

/* Scenario-Then-Explanation Reading Shape */
section[data-reading="scenario-block"] {
  margin-bottom: 2.25rem;
  background-color: #FAF8F2;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

section[data-reading="scenario-block"] > h2 {
  margin-top: 0;
}

blockquote[data-scenario] {
  margin: 0 0 1.25rem 0;
  padding: 1rem 1.15rem;
  background-color: var(--bg-ochre-tint);
  border-left: 5px solid var(--accent-ochre);
  border-radius: var(--radius-sm);
  color: var(--ink-primary);
}

blockquote[data-scenario] strong {
  display: block;
  color: var(--accent-terracotta);
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

blockquote[data-scenario] p {
  margin-bottom: 0;
  font-style: normal;
}

/* Calm-Nurse Callouts & Checklists */
aside[data-callout] {
  background-color: var(--bg-sage-tint);
  border: 1px solid #BBD0BF;
  border-left: 5px solid var(--accent-sage);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
}

aside[data-callout="caution"] {
  background-color: var(--bg-terracotta-tint);
  border-color: #E2BEB0;
  border-left-color: var(--accent-terracotta);
}

aside[data-callout] h3 {
  margin-top: 0;
  font-size: 1.1rem;
  color: var(--ink-primary);
}

/* SVG Diagrams inside Figures */
figure {
  margin: 1.75rem 0;
  padding: 1.125rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

/* Diagram cards reflow instead of scaling their labels down on phones. */
[data-diagram] {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  font-size: 1rem;
}

[data-diagram-card] {
  min-width: 0;
  padding: 1rem;
  background: var(--bg-sage-tint);
  border: 2px solid var(--accent-sage);
  border-radius: var(--radius-sm);
}

[data-diagram-card="paper"] { background: var(--bg-paper); }
[data-diagram-card="ochre"] {
  background: var(--bg-ochre-tint);
  border-color: var(--accent-ochre);
}
[data-diagram-card="terracotta"] {
  background: var(--bg-terracotta-tint);
  border-color: var(--accent-terracotta);
}

[data-diagram-card] > strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--accent-sage-hover);
  font-size: 1.0625rem;
}

[data-diagram-card] p { margin-bottom: 0.75rem; }
[data-diagram-card] p:last-child { margin-bottom: 0; }

figcaption {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.5;
}

/* Interactive Myth-Reveal Feature (js_feature: myth-reveal) */
section[data-myth-deck] {
  margin: 2.25rem 0;
  padding: 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
}

section[data-myth-deck] > header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

div[data-myth-controls] {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

button {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--accent-sage);
  background-color: var(--accent-sage);
  color: #FFFFFF;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

button:hover {
  background-color: var(--accent-sage-hover);
  border-color: var(--accent-sage-hover);
}

button[data-variant="secondary"] {
  background-color: var(--bg-paper);
  color: var(--accent-sage);
}

button[data-variant="secondary"]:hover {
  background-color: var(--bg-sage-tint);
  color: var(--accent-sage-hover);
}

article[data-myth] {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 1.125rem;
  margin-bottom: 1rem;
}

article[data-myth]:last-child {
  margin-bottom: 0;
}

article[data-myth] h3 {
  margin-top: 0;
  color: var(--accent-terracotta);
}

article[data-myth] div[data-myth-answer] {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 2px dashed var(--border-soft);
}

article[data-myth][data-collapsed="true"] div[data-myth-answer] {
  display: none;
}

/* Tables (Mobile Responsive Scroll Wrapper via Table Styling) */
table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin: 1.25rem 0 1.75rem;
  background-color: var(--bg-paper);
  border: 1px solid var(--border-strong);
  font-size: 1rem;
}

th,
td {
  text-align: left;
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  background-color: var(--bg-card);
  color: var(--ink-primary);
  font-weight: 700;
  border-bottom: 2px solid var(--border-strong);
}

tr:nth-child(even) td {
  background-color: #FAF7EE;
}

/* Definition Lists */
dl {
  margin: 1rem 0 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

dl > div {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

dt {
  font-weight: 700;
  color: var(--accent-sage);
  margin-bottom: 0.25rem;
}

dd {
  margin: 0;
  color: var(--ink-primary);
}

/* Page Footnotes (evidence_presentation: page-footnotes) */
aside[data-footnotes] {
  margin-top: 3rem;
  padding: 1.25rem;
  background-color: var(--bg-card);
  border-top: 3px solid var(--accent-sage);
  border-radius: var(--radius-md);
}

aside[data-footnotes] h2 {
  margin-top: 0;
  font-size: 1.25rem;
  border-bottom: 1px solid var(--border-strong);
}

aside[data-footnotes] ol {
  margin: 0;
  padding-left: 1.5rem;
}

aside[data-footnotes] li {
  margin-bottom: 0.65rem;
  font-size: 1rem;
  color: var(--ink-secondary);
}

aside[data-footnotes] a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0.35rem;
  font-weight: 600;
}

/* Cluster Cross-Links Nav at Bottom of Article */
nav[aria-label="Related topic pages"] {
  margin-top: 2.25rem;
  padding: 1.125rem;
  background-color: var(--bg-sage-tint);
  border: 1px solid #BBD0BF;
  border-radius: var(--radius-md);
}

nav[aria-label="Related topic pages"] h2 {
  margin-top: 0;
  font-size: 1.2rem;
  border-bottom: none;
  padding-bottom: 0;
}

nav[aria-label="Related topic pages"] ul {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem;
}

nav[aria-label="Related topic pages"] a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  background-color: var(--bg-paper);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
}

nav[aria-label="Related topic pages"] a:hover {
  border-color: var(--accent-sage);
  background-color: #FFFFFF;
  text-decoration: underline;
}

/* Footer */
body > footer {
  background-color: var(--bg-card);
  border-top: 2px solid var(--border-strong);
  padding: 1.75rem 1.125rem;
  margin-top: auto;
}

body > footer > div {
  max-width: 68rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

body > footer p {
  margin: 0;
  font-size: 1rem;
  color: var(--ink-secondary);
}

body > footer nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

body > footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0.5rem;
}

/* Keep dense tables readable without extending the page at phone width. */
@media (max-width: 719px) {
  th, td { padding: 0.625rem 0.375rem; }
}

/* Tablet Breakpoint (min-width: 720px) */
@media (min-width: 720px) {
  body > header {
    padding: 1.25rem 2rem;
  }

  body > header > div {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  body > header nav {
    grid-template-columns: repeat(2, 1fr);
  }

  main {
    padding: 2.25rem 2rem 4rem;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  section[data-reading="scenario-block"] {
    padding: 1.75rem;
  }

  section[data-myth-deck] > header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  dl, [data-diagram] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  nav[aria-label="Related topic pages"] ul {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop Breakpoint (min-width: 1024px) */
@media (min-width: 1024px) {
  body > header nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  h1 {
    font-size: 2.5rem;
  }

  [data-diagram] {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  nav[aria-label="Related topic pages"] ul {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Reduced Motion Respect */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}