/* ============================================================
   SOLA — sola.calebwelsh.com
   Design system, layout, and components.
   Typography-first. No gradients. Let whitespace do the work.
   ============================================================ */

/* === GOOGLE FONTS ===
   Loaded via <link> tags in HTML head (with preconnect hints).
   Do not re-add @import here — it blocks rendering and defeats preconnect. */

/* === DESIGN TOKENS: LIGHT MODE === */
:root {
  --bg:             #F9F6EF;
  --bg-surface:     #FFFFFF;
  --bg-tinted:      #F3EFE6;
  --text:           #1C1814;
  --text-secondary: #5C5248;
  --text-muted:     #8C8278;
  --border:         #E0D8CC;
  --border-strong:  #C8BEB0;
  --accent:         #7A3B1E;
  --accent-hover:   #5E2D15;
  --accent-subtle:  #F5EDE6;

  --font-body:      'EB Garamond', Georgia, serif;
  --font-display:   'Cormorant Garamond', Georgia, serif;

  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1.125rem;
  --text-lg:    1.25rem;
  --text-xl:    1.5rem;
  --text-2xl:   1.875rem;
  --text-3xl:   2.25rem;
  --text-4xl:   clamp(2rem, 4vw, 2.75rem);
  --text-display: clamp(3rem, 7vw, 5.5rem);

  --lh-tight:   1.25;
  --lh-snug:    1.45;
  --lh-normal:  1.65;
  --lh-relaxed: 1.8;
  --lh-loose:   2;

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --container-reading: 720px;
  --container-wide:    1024px;
  --container-nav:     1200px;

  --transition: 200ms ease;
}

/* === DESIGN TOKENS: DARK MODE === */
[data-theme="dark"] {
  --bg:             #111009;
  --bg-surface:     #18150F;
  --bg-tinted:      #1F1B14;
  --text:           #EDE8DE;
  --text-secondary: #A8998A;
  --text-muted:     #6E6055;
  --border:         #2C2720;
  --border-strong:  #3C342A;
  --accent:         #C4956A;
  --accent-hover:   #D4A578;
  --accent-subtle:  #241A10;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:             #111009;
    --bg-surface:     #18150F;
    --bg-tinted:      #1F1B14;
    --text:           #EDE8DE;
    --text-secondary: #A8998A;
    --text-muted:     #6E6055;
    --border:         #2C2720;
    --border-strong:  #3C342A;
    --accent:         #C4956A;
    --accent-hover:   #D4A578;
    --accent-subtle:  #241A10;
  }
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  hanging-punctuation: first last;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-relaxed);
  color: var(--text);
  background-color: var(--bg);
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === SELECTION === */
::selection {
  background-color: var(--accent);
  color: #fff;
}

[data-theme="dark"] ::selection,
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) ::selection {
    background-color: var(--accent);
    color: var(--bg);
  }
}

/* === TYPOGRAPHY === */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-tight);
  color: var(--text);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-4xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--text-2xl); margin-bottom: var(--space-4); margin-top: var(--space-12); }
h3 { font-size: var(--text-xl);  margin-bottom: var(--space-3); margin-top: var(--space-8); font-weight: 500; font-style: italic; }
h4 { font-size: var(--text-lg);  margin-bottom: var(--space-2); margin-top: var(--space-6); font-weight: 500; }

p {
  margin-bottom: var(--space-5);
  max-width: 68ch;
}

p:last-child { margin-bottom: 0; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

a:hover { color: var(--accent-hover); }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

strong { font-weight: 600; }
em { font-style: italic; }

small, .text-sm {
  font-size: var(--text-sm);
  line-height: var(--lh-normal);
}

/* Small caps for labels */
.label, .category, .meta-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-variant: small-caps;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
}

/* Display headline (home page) */
.display-title {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Lede / intro paragraph */
.lede {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: var(--lh-snug);
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: var(--space-8);
}

/* Drop cap for long articles */
.drop-cap::first-letter {
  font-family: var(--font-display);
  font-size: 4.5em;
  font-weight: 600;
  float: left;
  line-height: 0.75;
  margin-right: 0.08em;
  margin-top: 0.1em;
  color: var(--accent);
}

/* Blockquote / pull quote */
blockquote {
  border-left: 2px solid var(--accent);
  margin: var(--space-8) 0;
  padding: var(--space-4) var(--space-6);
  background-color: var(--accent-subtle);
}

blockquote p {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  font-style: italic;
  line-height: var(--lh-snug);
  color: var(--text);
  margin-bottom: var(--space-2);
}

blockquote cite {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-style: normal;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
}

/* Scripture verse block */
.verse-block {
  border-left: 2px solid var(--border-strong);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background-color: var(--bg-tinted);
}

.verse-block .verse-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  font-weight: 400;
  line-height: var(--lh-snug);
  color: var(--text);
  margin-bottom: var(--space-2);
}

.verse-block .verse-ref {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  letter-spacing: 0.04em;
}

/* Horizontal rule */
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-10) 0;
}

.rule-ornament {
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin: var(--space-10) 0;
  letter-spacing: 0.5em;
  user-select: none;
}

/* Lists */
ul, ol {
  margin-left: var(--space-6);
  margin-bottom: var(--space-5);
}

li { margin-bottom: var(--space-2); }

ul.plain-list {
  list-style: none;
  margin-left: 0;
}

/* === LAYOUT === */

.site-header {
  border-bottom: 1px solid var(--border);
  background-color: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color var(--transition);
}

.nav-inner {
  max-width: var(--container-nav);
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 64px;
}

.site-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  line-height: 1;
}

.site-name:hover { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  flex: 1;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.03em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.theme-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: var(--space-1) var(--space-2);
  border-radius: 3px;
  transition: color var(--transition), border-color var(--transition), background-color var(--transition);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.theme-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background-color: var(--bg-tinted);
}

/* Mobile nav toggle */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background-color: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  border-top: 1px solid var(--border);
  background-color: var(--bg);
  padding: var(--space-4) clamp(1rem, 5vw, 3rem) var(--space-6);
}

.nav-mobile.is-open { display: block; }

.nav-mobile ul {
  list-style: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-mobile a {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border);
}

.nav-mobile a[aria-current="page"] {
  color: var(--accent);
}

/* Reference nav row */
.nav-reference {
  border-top: 1px solid var(--border);
  background-color: var(--bg);
}

.nav-reference-inner {
  max-width: var(--container-nav);
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 36px;
}

.nav-reference-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
  padding-right: var(--space-4);
  border-right: 1px solid var(--border);
}

.nav-reference-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
}

.nav-reference-links a {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav-reference-links a:hover,
.nav-reference-links a[aria-current="page"] {
  color: var(--accent);
}

/* Main content */
.site-main {
  flex: 1;
  padding: var(--space-16) clamp(1rem, 5vw, 3rem) var(--space-24);
}

/* Reading container */
.container {
  max-width: var(--container-reading);
  margin: 0 auto;
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
}

/* Page header section */
.page-header {
  margin-bottom: var(--space-16);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--border);
}

.page-header .breadcrumb {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
}

.page-header .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.page-header .breadcrumb a:hover {
  color: var(--accent);
}

.page-header h1 {
  margin-bottom: var(--space-4);
}

.page-header .lede {
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-12) clamp(1rem, 5vw, 3rem);
  background-color: var(--bg);
}

.footer-inner {
  max-width: var(--container-nav);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-style: italic;
  font-family: var(--font-display);
}

.footer-nav {
  display: flex;
  gap: var(--space-5);
  list-style: none;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* === COMPONENTS === */

/* --- Doctrine Card Grid --- */
.doctrine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.doctrine-card {
  border: 1px solid var(--border);
  padding: var(--space-6);
  background-color: var(--bg-surface);
  text-decoration: none;
  display: block;
  transition: border-color var(--transition), background-color var(--transition);
}

.doctrine-card:hover {
  border-color: var(--accent);
  background-color: var(--accent-subtle);
}

.doctrine-card .card-label {
  font-size: var(--text-xs);
  font-variant: small-caps;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  display: block;
}

.doctrine-card .card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-3);
}

.doctrine-card .card-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin: 0;
}

/* --- Doctrine Page Sections --- */
.doctrine-section {
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}

.doctrine-section:last-child {
  border-bottom: none;
}

.doctrine-section-label {
  font-size: var(--text-xs);
  font-variant: small-caps;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.doctrine-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border);
}

/* --- Confession Locus --- */
.locus-section {
  margin-bottom: var(--space-16);
}

.locus-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.locus-confession-ref {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  margin-top: var(--space-4);
  font-style: italic;
}

/* --- Resources List --- */
.resources-list {
  list-style: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.resources-list li {
  display: flex;
  gap: var(--space-3);
  align-items: baseline;
  margin: 0;
}

.resources-list li::before {
  content: '—';
  color: var(--text-muted);
  flex-shrink: 0;
  font-family: var(--font-display);
}

/* --- Answer spoiler (details/summary toggle) --- */
.answer-spoiler {
  margin-top: var(--space-3);
  border: 1px solid var(--border);
}

.answer-spoiler summary {
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  font-size: var(--text-xs);
  font-family: var(--font-body);
  font-variant: small-caps;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  list-style: none;
  user-select: none;
}

.answer-spoiler summary::-webkit-details-marker { display: none; }

.answer-spoiler summary::before {
  content: '▸\00a0\00a0';
  font-variant: normal;
  text-transform: none;
  letter-spacing: 0;
}

.answer-spoiler[open] summary::before {
  content: '▾\00a0\00a0';
}

.answer-spoiler .answer-content {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
}

.answer-spoiler .answer-content p { margin-bottom: var(--space-4); }
.answer-spoiler .answer-content p:last-child { margin-bottom: 0; }

.resource-title {
  font-style: italic;
  color: var(--text);
}

.resource-author {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* --- Scripture Verse Entry (favorite/difficult) --- */
.scripture-entry {
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--border);
}

.scripture-entry:last-child {
  border-bottom: none;
}

.scripture-reference {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-4);
}

.scripture-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
  line-height: var(--lh-snug);
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  padding-left: var(--space-5);
  border-left: 2px solid var(--border-strong);
}

.scripture-commentary {
  color: var(--text);
  line-height: var(--lh-relaxed);
}

/* Memorization annotation — inline at the right of the verse heading */
.scripture-reference {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
}

.mem-badge {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
  padding: 0;
  margin: 0;
  border: none;
  background: none;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
  transition: color var(--transition);
}

a.scripture-text,
a.verse-quote-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}
a.scripture-text:hover,
a.verse-quote-link:hover {
  color: var(--accent);
}

.mem-badge[data-state="unstarted"] {
  color: var(--text-secondary);
}

.mem-badge[data-state="learning"] {
  color: var(--accent);
}

.mem-badge[data-state="memorized"] {
  color: var(--accent);
}

.mem-popover {
  position: fixed;
  z-index: 200;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: var(--space-1) 0;
  min-width: 130px;
}

.mem-popover-option {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-style: italic;
  font-weight: 400;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition);
  white-space: nowrap;
}

.mem-popover-option:hover {
  color: var(--accent);
}

.mem-popover-option[data-active] {
  color: var(--accent);
}

/* --- Library Book Entry --- */
.book-section {
  margin-bottom: var(--space-16);
}

.book-section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.book-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.book-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: start;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.book-entry:last-child { border-bottom: none; }

.book-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  font-weight: 500;
  color: var(--text);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-1);
}

.book-author {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.book-note {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-2);
  font-style: italic;
  line-height: var(--lh-normal);
  max-width: none;
}

.book-tag {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px var(--space-2);
  white-space: nowrap;
  align-self: start;
}

/* --- Christian Life Topic Card --- */
.topic-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.topic-section {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--border);
}

.topic-section:first-child { border-top: 1px solid var(--border); }

.topic-section h2 {
  margin-top: 0;
}

/* --- Home page nav table --- */
.home-nav-table {
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: 0;
}

.home-nav-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-8);
  align-items: baseline;
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: background-color var(--transition);
}

.home-nav-item:first-child { border-top: 1px solid var(--border); }

.home-nav-item:hover .home-nav-title { color: var(--accent); }

.home-nav-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text);
  line-height: var(--lh-tight);
  transition: color var(--transition);
}

.home-nav-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  font-style: italic;
  font-family: var(--font-display);
  max-width: none;
  margin: 0;
}

/* --- Five Solas banner --- */
.solas-line {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-style: italic;
  text-align: center;
  margin: var(--space-8) 0;
  white-space: nowrap;
}

.solas-line a {
  color: inherit;
  text-decoration: none;
}

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

/* --- Hermeneutics principle --- */
.principle {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border);
}

.principle:first-child { border-top: 1px solid var(--border); }

.principle-number {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
  display: block;
  text-transform: uppercase;
}

.principle h3 {
  margin-top: 0;
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
}

/* --- Sub-nav for section index pages --- */
.section-subnav {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
  list-style: none;
  flex-wrap: wrap;
}

.section-subnav a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.section-subnav a:hover,
.section-subnav a[aria-current="page"] {
  color: var(--accent);
}

/* === RESPONSIVE === */

@media (max-width: 768px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-hamburger {
    display: flex;
    margin-left: auto;
  }

  .theme-btn {
    display: none;
  }

  .home-nav-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .book-entry {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .doctrine-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .footer-nav {
    gap: var(--space-3);
  }
}

/* === PRINT === */
@media print {
  .site-header, .site-footer, .theme-btn, .nav-hamburger { display: none; }
  body { background: white; color: black; }
  a { color: black; }
  .site-main { padding: 0; }
}

/* === UTILITY === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.italic { font-style: italic; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

/* === QUOTES PAGE === */
.quote-section {
  margin-bottom: var(--space-16);
}

.quote-category {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-8);
  margin-top: 0;
}

.quote-entry {
  margin-bottom: var(--space-10);
  padding-left: var(--space-6);
  border-left: 2px solid var(--accent-subtle);
}

[data-theme="dark"] .quote-entry {
  border-left-color: rgba(196, 149, 106, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .quote-entry {
    border-left-color: rgba(196, 149, 106, 0.2);
  }
}

.quote-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
  line-height: var(--lh-snug);
  color: var(--text);
  margin: 0 0 var(--space-3);
  border: none;
  background: none;
  padding: 0;
}

.quote-source {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: normal;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* --- Decision Tree --- */
.decision-tree {
  list-style: none;
  margin: var(--space-8) 0;
  padding: 0;
}

.decision-tree ul {
  list-style: none;
  margin: var(--space-4) 0 var(--space-4) var(--space-8);
  padding: 0;
  padding-left: var(--space-6);
  border-left: 1px solid var(--border);
}

.decision-tree li {
  margin: var(--space-4) 0;
  padding: 0;
}

.decision-tree li strong {
  color: var(--text);
  font-weight: 600;
}

.decision-tree > li > strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--accent);
}

.decision-tree ul li strong {
  font-size: var(--text-base);
  font-weight: 600;
}

.decision-tree ul ul li strong {
  font-weight: 600;
  color: var(--text-secondary);
}

.decision-tree ul ul ul li {
  font-size: var(--text-sm);
  color: var(--text);
}

.decision-tree ul ul ul li strong {
  font-weight: 600;
}

/* --- Expandable Objections --- */
details.objection-expandable {
  background: var(--bg-tinted);
}

details.objection-expandable summary {
  outline: none;
  padding: var(--space-4);
  margin: calc(-1 * var(--space-4));
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
  transition: background var(--transition);
}

details.objection-expandable summary:hover {
  background: var(--bg);
}

details.objection-expandable summary::marker {
  color: var(--accent);
}

details.objection-expandable[open] summary {
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}