/* ============================================
   1. CSS Variables & Reset
   ============================================ */
:root {
  --color-primary: #1B5E3B;
  --color-primary-dark: #0D3321;
  --color-accent: #F5A623;
  --color-text: #2D2D2D;
  --color-text-secondary: #5A5A5A;
  --color-bg: #F7F8FA;
  --color-surface: #FFFFFF;
  --color-border: #D8DBE0;
  --color-danger: #E53935;
  --color-success: #2E7D32;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --h1-size: clamp(1.75rem, 4vw, 2.75rem);
  --h2-size: clamp(1.25rem, 3vw, 1.875rem);
  --h3-size: clamp(1rem, 2.5vw, 1.375rem);
  --body-size: clamp(0.9rem, 1.5vw, 1.0625rem);
  --table-size: clamp(0.8rem, 1.2vw, 0.9375rem);
  --caption-size: 0.8125rem;

  --content-width: 740px;
  --section-gap: clamp(3rem, 6vw, 5rem);
  --component-radius: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --transition-base: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #3DA66B;
    --color-primary-dark: #1B5E3B;
    --color-accent: #F5A623;
    --color-text: #E0E2E6;
    --color-text-secondary: #9CA0A8;
    --color-bg: #141618;
    --color-surface: #1E2124;
    --color-border: #2E3238;
    --color-danger: #EF5350;
    --color-success: #4CAF50;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--body-size);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   2. General Typography
   ============================================ */

.breadcrumbs {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  margin-bottom: 25px;
}

p {
  text-align: justify;
  word-break: normal;
  margin-bottom: 1.25em;
}

h1 {
  font-family: var(--font-display);
  font-size: var(--h1-size);
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  line-height: 1.3;
  margin-bottom: 1rem;
  scroll-margin-top: 2rem;
}

h2, .toc-wrap__title {
  font-family: var(--font-display);
  font-size: var(--h2-size);
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  line-height: 1.3;
  margin-bottom: 1rem;
  scroll-margin-top: 2rem;
}

h3 {
  font-family: var(--font-display);
  font-size: var(--h3-size);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  line-height: 1.35;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: 2rem;
}

main ul, ol {
  text-align: left;
  margin-bottom: 1.25em;
  padding-left: 1.5em;
}

li {
  margin-bottom: 0.4em;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

blockquote {
  text-align: left;
  border-left: 3px solid var(--color-accent);
  padding: 0.75em 1.25em;
  margin: 1.5em 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-base);
}

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

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: var(--table-size);
  font-family: var(--font-mono);
}

thead th {
  background-color: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--caption-size);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75em 1em;
  text-align: left;
}

tbody td {
  padding: 0.65em 1em;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

tbody tr:nth-child(even) {
  background-color: color-mix(in srgb, var(--color-surface) 50%, var(--color-bg));
}

tbody tr {
  transition: background-color var(--transition-base);
}

tbody tr:hover {
  background-color: color-mix(in srgb, var(--color-accent) 6%, var(--color-bg));
}

figcaption {
  font-size: var(--caption-size);
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 0.5em;
}

/* ============================================
   3. Layout — Sections
   ============================================ */
header {
  padding: 0;
  margin: 0;
}

main {
  width: 100%;
}

main article {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

[data-content] {
  max-width: var(--content-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 1.25rem;
  margin-bottom: var(--section-gap);
}

figure {
  max-width: 100%;
  margin: 1.5em auto;
}

.hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.article-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* ============================================
   4. Components
   ============================================ */

/* --- info-box --- */
.info-box {
  background-color: #E8F5E9;
  border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
  border-radius: var(--component-radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5em 0;
  box-shadow: var(--shadow-sm);
}
.info-box p {
  text-align: left;
  color: var(--color-text);
  margin-bottom: 0.5em;
  font-size: var(--body-size);
  line-height: 1.7;
}
.info-box p:last-child {
  margin-bottom: 0;
}
.info-box strong {
  color: var(--color-primary);
}
@media (prefers-color-scheme: dark) {
  .info-box {
    background-color: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface));
    border-color: color-mix(in srgb, var(--color-primary) 30%, transparent);
  }
  .info-box p {
    color: var(--color-text);
  }
  .info-box strong {
    color: var(--color-accent);
  }
}

/* --- odds-example --- */
.odds-example {
  background-color: var(--color-primary-dark);
  color: #F7F8FA;
  border-radius: var(--component-radius);
  padding: 1.5rem;
  margin: 1.5em 0;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.odds-example p {
  text-align: center;
  color: #F7F8FA;
  font-family: var(--font-mono);
  font-size: var(--table-size);
  line-height: 1.7;
  margin-bottom: 0.5em;
}
.odds-example p:last-child {
  margin-bottom: 0;
}
.odds-example strong {
  color: var(--color-accent);
}
@media (prefers-color-scheme: dark) {
  .odds-example {
    background-color: #0D3321;
    color: #F7F8FA;
  }
  .odds-example p {
    color: #F7F8FA;
  }
  .odds-example strong {
    color: var(--color-accent);
  }
}

/* --- callout / callout-tip --- */
.callout,
.callout-tip {
  border-left: 4px solid var(--color-accent);
  background-color: #FFF8E1;
  padding: 1rem 1.25rem;
  margin: 1.5em 0;
  border-radius: 0 var(--component-radius) var(--component-radius) 0;
  box-shadow: var(--shadow-sm);
}
.callout p,
.callout-tip p {
  text-align: left;
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0;
}
@media (prefers-color-scheme: dark) {
  .callout,
  .callout-tip {
    background-color: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface));
    border-left-color: var(--color-accent);
  }
  .callout p,
  .callout-tip p {
    color: var(--color-text);
  }
}

/* --- card-grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5em 0;
}
.card-grid > div {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--component-radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card-grid > div:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card-grid p {
  text-align: left;
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0.5em;
}
.card-grid strong {
  color: var(--color-primary);
  font-family: var(--font-display);
}

/* --- comparison --- */
.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5em 0;
}
.comparison > div {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--component-radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.comparison > div:first-child {
  border-top: 3px solid var(--color-primary);
}
.comparison > div:last-child {
  border-top: 3px solid var(--color-accent);
}
.comparison p {
  text-align: left;
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0.5em;
}
.comparison strong {
  color: var(--color-text);
}
@media (max-width: 600px) {
  .comparison {
    grid-template-columns: 1fr;
  }
}

/* --- tldr --- */
.tldr {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem 1.75rem;
  border-radius: 0 var(--component-radius) var(--component-radius) 0;
  box-shadow: var(--shadow-sm);
}
.tldr h2 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.tldr ul {
  text-align: left;
  padding-left: 1.25em;
}
.tldr li {
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0.5em;
}

/* --- key-takeaway --- */
.key-takeaway {
  border-top: 2px solid var(--color-accent);
  padding-top: 1rem;
  margin: 2em 0;
}
.key-takeaway p {
  text-align: left;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.375rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 0;
}

/* --- fun-fact --- */
.fun-fact {
  position: relative;
  padding-left: 1.5rem;
  margin: 1.5em 0;
}
.fun-fact::before {
  content: '--';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: 700;
}
.fun-fact p {
  text-align: left;
  font-style: italic;
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0;
}

/* --- glossary-term --- */
.glossary-term {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 1em 0;
}
.glossary-term strong {
  font-family: var(--font-mono);
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}
.glossary-term span {
  color: var(--color-text-secondary);
  font-size: var(--body-size);
  line-height: 1.7;
}
@media (max-width: 600px) {
  .glossary-term {
    flex-direction: column;
    gap: 4px;
  }
}

/* --- dos-donts --- */
.dos-donts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5em 0;
}
.dos-donts > div {
  padding: 1.25rem;
  border-radius: var(--component-radius);
}
.dos-donts > div:first-child {
  border-top: 3px solid var(--color-success);
  background-color: color-mix(in srgb, var(--color-success) 5%, var(--color-surface));
}
.dos-donts > div:last-child {
  border-top: 3px solid var(--color-danger);
  background-color: color-mix(in srgb, var(--color-danger) 5%, var(--color-surface));
}
.dos-donts h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--body-size);
  margin-bottom: 0.75rem;
}
.dos-donts > div:first-child h4 {
  color: var(--color-success);
}
.dos-donts > div:last-child h4 {
  color: var(--color-danger);
}
.dos-donts ul {
  text-align: left;
  padding-left: 1.25em;
}
.dos-donts li {
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0.4em;
}
@media (max-width: 600px) {
  .dos-donts {
    grid-template-columns: 1fr;
  }
}

/* --- pre-bet-checklist --- */
.pre-bet-checklist {
  margin: 1.5em 0;
}
.pre-bet-checklist h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  font-size: var(--caption-size);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.pre-bet-checklist ul {
  text-align: left;
  list-style: none;
  padding-left: 1.5rem;
  border-left: 2px solid var(--color-border);
}
.pre-bet-checklist li {
  position: relative;
  padding-left: 0.25rem;
  color: var(--color-text);
  font-size: var(--body-size);
  line-height: 1.7;
  margin-bottom: 0.6em;
}
.pre-bet-checklist li::before {
  content: '\2610';
  position: absolute;
  left: -1.35rem;
  color: var(--color-accent);
  background-color: var(--color-bg);
  font-size: 0.9em;
}

/* --- at-a-glance --- */
.at-a-glance {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
  margin: 1.5em 0;
  border: 1px solid var(--color-border);
  border-radius: var(--component-radius);
  overflow: hidden;
}
.at-a-glance > div {
  padding: 1.25rem;
  border-right: 1px solid var(--color-border);
  text-align: center;
}
.at-a-glance > div:last-child {
  border-right: none;
}
.at-a-glance strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.375rem);
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}
.at-a-glance p {
  text-align: center;
  font-size: var(--caption-size);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}
@media (max-width: 600px) {
  .at-a-glance {
    grid-template-columns: 1fr 1fr;
  }
  .at-a-glance > div {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .at-a-glance > div:nth-child(odd) {
    border-right: 1px solid var(--color-border);
  }
}

/* --- worked-example --- */
.worked-example {
  background-color: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--component-radius);
  margin: 1.5em 0;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.worked-example p {
  text-align: left;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--table-size);
  line-height: 1.8;
  margin-bottom: 0.75em;
}
.worked-example p:last-child {
  margin-bottom: 0;
}
.worked-example hr {
  border: none;
  border-top: 1px dashed var(--color-border);
  margin: 1em 0;
}
.worked-example .result {
  color: var(--color-accent);
  font-weight: 600;
  font-size: clamp(1rem, 1.8vw, 1.125rem);
}

/* --- section-bridge --- */
.section-bridge {
  text-align: center;
  margin: 2em 0;
  position: relative;
  padding: 0 2rem;
}
.section-bridge::before,
.section-bridge::after {
  content: '---';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-border);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
}
.section-bridge::before {
  left: 0;
}
.section-bridge::after {
  right: 0;
}
.section-bridge p {
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-accent);
  font-size: var(--body-size);
  margin-bottom: 0;
}

/* --- stat-card (used in content) --- */
.stat-card {
  text-align: center;
  padding: 1.25rem;
}
.stat-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-primary);
  line-height: 1.2;
}
.stat-card p {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--caption-size);
  margin-bottom: 0;
}

/* --- distance-chip --- */
.distance-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  background-color: color-mix(in srgb, var(--color-primary) 10%, var(--color-bg));
  color: var(--color-primary);
  padding: 0.2em 0.65em;
  border-radius: 100px;
  margin: 0.15em 0.25em;
  border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
}

/* --- results-table (zebra styling inherits from main table) --- */
.results-table {
  margin: 1.5em 0;
}

/* --- trap-heatmap --- */
.trap-heatmap {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
  margin: 1.5em 0;
}
.trap-heatmap > div {
  text-align: center;
  padding: 1rem 0.5rem;
  border-radius: var(--component-radius);
  font-family: var(--font-mono);
  font-size: var(--table-size);
  box-shadow: var(--shadow-sm);
}
.trap-heatmap > div strong {
  display: block;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: inherit;
}
.trap-heatmap > div p {
  text-align: center;
  margin-bottom: 0;
  font-size: var(--caption-size);
  color: inherit;
  opacity: 0.8;
}

/* ============================================
   5. Hero Section
   ============================================ */
[data-content="hero"] {
  max-width: none;
  padding: 0;
  margin-bottom: var(--section-gap);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  background: linear-gradient(165deg, #1B5E3B 0%, #0D3321 100%);
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) 1.25rem clamp(2.5rem, 6vw, 4.5rem);
}

.hero-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      rgba(255,255,255,0.025) 39px,
      rgba(255,255,255,0.025) 40px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      rgba(255,255,255,0.025) 39px,
      rgba(255,255,255,0.025) 40px
    );
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, transparent 30%, black 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, transparent 30%, black 100%);
}

.hero-content {
  max-width: var(--content-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-rubric {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: block;
}

[data-content="hero"] h1 {
  font-family: var(--font-display);
  font-size: var(--h1-size);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.15;
  text-align: left;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: var(--caption-size);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 1.5rem;
  display: block;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.date-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  background-color: rgba(255,255,255,0.08);
  padding: 0.3em 0.75em;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.1);
}

.trust-marker {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.5);
}

.hero-figure {
  max-width: var(--content-width);
  margin: 1.5rem auto 0;
  position: relative;
  z-index: 1;
}

.hero-figure .hero-image {
  border-radius: var(--component-radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}

.hero-figure figcaption {
  color: rgba(255,255,255,0.5);
  margin-top: 0.75rem;
}

/* ============================================
   6. FAQ Accordion
   ============================================ */
details {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--body-size);
  color: var(--color-text);
  cursor: pointer;
  padding: 1rem 2rem 1rem 0;
  position: relative;
  list-style: none;
  transition: color var(--transition-base);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-primary);
  transition: transform 0.3s ease;
  font-weight: 300;
}

details[open] > summary::after {
  content: '-';
}

summary:hover {
  color: var(--color-primary);
}

summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Modern animated details with ::details-content */
details {
  interpolate-size: allow-keywords;
}

::details-content {
  opacity: 0;
  block-size: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, block-size 0.3s ease, content-visibility 0.3s ease;
  transition-behavior: allow-discrete;
}

details[open]::details-content {
  opacity: 1;
  block-size: auto;
}

details[open] > div > p,
details[open] > p {
  padding-bottom: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Fallback for older browsers */
@supports not selector(::details-content) {
  @keyframes faq-fade-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
  }
  details[open] > *:not(summary) {
    animation: faq-fade-in 0.25s ease forwards;
  }
}

/* ============================================
   7. TOC — Compact Horizontal Strip
   ============================================ */
[data-content="toc"] {
  margin-bottom: var(--section-gap);
}

.toc-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.toc-strip a {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 0.35em 0.85em;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.toc-strip a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: color-mix(in srgb, var(--color-primary) 5%, transparent);
}

.toc-strip a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================
   8. Back to Top
   ============================================ */
.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 0.5em 1em;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  transition: all var(--transition-base);
  margin-top: 2rem;
  margin-bottom: 55px;
}

.back-to-top:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================
   10. Media Queries
   ============================================ */
@media (max-width: 768px) {
  [data-content] {
    padding: 0.5rem 1rem;
  }

  .hero-inner {
    padding: clamp(2rem, 6vw, 3.5rem) 1rem clamp(2rem, 5vw, 3rem);
  }

  .toc-strip {
    gap: 0.4rem;
  }

  .toc-strip a {
    font-size: 0.75rem;
    padding: 0.3em 0.7em;
  }

  .at-a-glance {
    grid-template-columns: 1fr 1fr;
  }

  .trap-heatmap {
    grid-template-columns: repeat(3, 1fr);
  }

  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}