@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@600;700&family=Playfair+Display:wght@400;500;600;700&display=swap');

/* === Brand & Design Tokens === */
:root {
  color-scheme: dark;

  /* Typography */
  --font-body: 'Merriweather', serif;
  --font-heading: 'Playfair Display', serif;
  --font-size-body: 1.15rem;
  --font-size-main: 1.1rem;
  --line-height-body: 1.8;
  --line-height-body-mobile: 1.7;
  --heading-line-height: 1.3;
  --heading-font-weight: 600;

  /* Core colors */
  --color-bg: #02050d;
  --color-text: #f5f5f5;
  --color-heading: #ffffff;
  --color-muted: #aaa;
  --color-link: #4ac1ff;
  --color-link-hover: #77d6ff;
  --color-link-contrast: #f3f7ff;
  --color-nav-bg: #010101;
  --color-nav-text: #f2f2f2;
  --color-footer-bg: #010101;
  --color-footer-text: #f5f5f5;

  /* Surface colors */
  --surface-border: rgba(255, 255, 255, 0.2);
  --surface-border-strong: rgba(255, 255, 255, 0.4);
  --surface-border-soft: rgba(255, 255, 255, 0.12);
  --surface-border-faint: rgba(255, 255, 255, 0.08);
  --surface-bg-muted: rgba(255, 255, 255, 0.05);
  --surface-bg-strong: rgba(255, 255, 255, 0.15);
  --surface-bg-hover: rgba(255, 255, 255, 0.2);
  --surface-result-bg: rgba(255, 255, 255, 0.04);
  --surface-result-border: rgba(255, 255, 255, 0.08);

  /* Inputs */
  --input-bg: #0c0c0c;
  --input-border: #333;
  --input-text: #f7f7f7;
  --input-placeholder: #b5b5b5;

  /* Text accents */
  --meta-text: #dcdcdc;
  --secondary-text: #e0e0e0;
  --highlight-text: #f0ad4e;

  /* Accent */
  --accent-bg: #d35400;
  --accent-bg-hover: #e67e22;
  --accent-text: #ffffff;

  /* Pills / chips */
  --pill-bg: rgba(255, 255, 255, 0.1);
  --pill-bg-secondary: rgba(255, 255, 255, 0.05);
  --pill-bg-hover: rgba(255, 255, 255, 0.2);
  --chip-bg: rgba(255, 255, 255, 0.08);
  --chip-border: rgba(255, 255, 255, 0.24);
  --chip-hover-bg: rgba(120, 205, 255, 0.28);
  --chip-hover-border: rgba(165, 220, 255, 0.45);

  /* Cards */
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(120, 170, 255, 0.24);
  --card-hover-border: rgba(150, 205, 255, 0.38);
  --card-hover-bg: rgba(90, 150, 255, 0.16);
  --question-card-hover-bg: var(--card-hover-bg);
  --category-card-hover-bg: rgba(105, 175, 255, 0.2);
  --resource-card-hover-bg: rgba(80, 160, 255, 0.18);

  /* Long explanation */
  --long-toggle-border: rgba(99, 179, 237, 0.4);
  --long-toggle-bg: rgba(99, 179, 237, 0.18);
  --long-toggle-bg-hover: rgba(99, 179, 237, 0.28);
  --long-toggle-border-hover: rgba(99, 179, 237, 0.7);
  --long-content-border: rgba(255, 255, 255, 0.12);
  --long-content-bg: rgba(255, 255, 255, 0.03);

  /* Misc */
  --question-group-label-color: rgba(255, 255, 255, 0.75);
  --question-id-color: rgba(255, 255, 255, 0.7);
  --logo-filter: invert(0);

  /* Shared sizing / effects */
  --radius-card: 16px;
  --radius-pill: 999px;
  --radius-tooltip: 10px;
  --radius-long-content: 0.9rem;

  --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 24px 45px rgba(0, 0, 0, 0.4);
  --shadow-tooltip: 0 18px 38px rgba(5, 10, 20, 0.5);

  --transition-theme: background-color 0.2s ease, color 0.2s ease;
  --transition-surface:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease;
  --transition-border-bg: background-color 0.2s ease, border-color 0.2s ease;
  --transition-border-bg-color:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

[data-theme='light'] {
  color-scheme: light;

  /* Core colors */
  --color-bg: #f9fbff;
  --color-text: #101322;
  --color-heading: #0f172a;
  --color-muted: #5c6274;
  --color-link: #0059d0;
  --color-link-hover: #003f94;
  --color-link-contrast: #eef4ff;
  --color-nav-bg: #ffffff;
  --color-nav-text: #0f172a;
  --color-footer-bg: #f1f5f9;
  --color-footer-text: #0f172a;

  /* Surface colors */
  --surface-border: rgba(15, 23, 42, 0.18);
  --surface-border-strong: rgba(15, 23, 42, 0.35);
  --surface-border-soft: rgba(15, 23, 42, 0.1);
  --surface-border-faint: rgba(15, 23, 42, 0.08);
  --surface-bg-muted: rgba(15, 23, 42, 0.05);
  --surface-bg-strong: rgba(37, 99, 235, 0.14);
  --surface-bg-hover: rgba(37, 99, 235, 0.2);
  --surface-result-bg: rgba(255, 255, 255, 0.95);
  --surface-result-border: rgba(15, 23, 42, 0.12);

  /* Inputs */
  --input-bg: #ffffff;
  --input-border: rgba(15, 23, 42, 0.18);
  --input-text: #111322;
  --input-placeholder: rgba(15, 23, 42, 0.5);

  /* Text accents */
  --meta-text: rgba(15, 23, 42, 0.75);
  --secondary-text: rgba(15, 23, 42, 0.66);
  --highlight-text: #b45309;

  /* Pills / chips */
  --pill-bg: rgba(15, 23, 42, 0.08);
  --pill-bg-secondary: rgba(15, 23, 42, 0.04);
  --pill-bg-hover: rgba(15, 23, 42, 0.18);
  --chip-bg: rgba(15, 23, 42, 0.05);
  --chip-border: rgba(15, 23, 42, 0.16);
  --chip-hover-bg: rgba(37, 99, 235, 0.15);
  --chip-hover-border: rgba(37, 99, 235, 0.4);

  /* Cards */
  --card-bg: rgba(15, 23, 42, 0.08);
  --card-border: rgba(15, 23, 42, 0.2);
  --card-hover-border: rgba(15, 23, 42, 0.35);
  --card-hover-bg: rgba(37, 99, 235, 0.18);
  --question-card-hover-bg: rgba(30, 64, 175, 0.14);
  --category-card-hover-bg: rgba(30, 64, 175, 0.16);
  --resource-card-hover-bg: rgba(30, 64, 175, 0.12);

  /* Long explanation */
  --long-content-border: rgba(15, 23, 42, 0.12);
  --long-content-bg: rgba(255, 255, 255, 0.9);

  /* Misc */
  --question-group-label-color: rgba(15, 23, 42, 0.65);
  --question-id-color: rgba(15, 23, 42, 0.9);
  --logo-filter: invert(1);
}

/* === Global Styles === */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  margin: 0;
  padding: 0;
  transition: var(--transition-theme);
}

/* === Links === */
a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* === Navigation & Footer === */
.navbar,
footer {
  background: var(--color-nav-bg);
  color: var(--color-nav-text);
  padding: 1rem;
  text-align: center;
}

/* === Headings === */
h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: var(--heading-font-weight);
  color: var(--color-heading);
  line-height: var(--heading-line-height);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.page-title {
  margin: 0 0 1.5rem;
  font-size: 2.1rem;
}

/* === Main Content === */
main {
  max-width: 960px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  font-size: var(--font-size-main);
}

@media (min-width: 1200px) {
  main {
    max-width: 1100px;
  }
}

/* === Lists === */
ul {
  list-style: none;
  padding: 0;
}

/* === Shared Card Surface === */
.card-panel {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
  transition: var(--transition-surface);
}

.card-panel:hover,
.card-panel:focus-within {
  transform: translateY(-2px);
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-card-hover);
}

/* === Breadcrumbs === */
.breadcrumbs {
  font-size: 0.95em;
  margin-bottom: 1rem;
  color: var(--color-muted);
}

.breadcrumbs a {
  color: var(--color-link);
}

/* === Shared Utility Styles === */
.breadcrumb {
  display: inline-block;
  font-size: 0.9rem;
  text-decoration: none;
  color: inherit;
  opacity: 0.75;
}

.breadcrumb:hover,
.breadcrumb:focus-visible {
  text-decoration: underline;
  opacity: 1;
}

/* === Question Feed === */
.question-feed {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feed-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.feed-header h1 {
  margin: 0;
}

.feed-subtitle {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--color-text);
}

.feed-subtitle .author-name-link,
.feed-subtitle .category-parent-link {
  color: var(--color-link);
  font-weight: 600;
}

.feed-subtitle .author-name-link:hover,
.feed-subtitle .author-name-link:focus-visible,
.feed-subtitle .category-parent-link:hover,
.feed-subtitle .category-parent-link:focus-visible {
  text-decoration: underline;
}

.empty-state {
  text-align: center;
}

.question-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.question-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
  line-height: 1.5;
}

.question-card-body {
  flex: 1;
  min-width: 0;
}

.question-card:hover,
.question-card:focus-visible {
  text-decoration: none;
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-card-hover);
  background-color: var(--question-card-hover-bg);
}

.question-card .question-id {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--question-id-color);
}

.question-title {
  display: block;
  font-size: 1.15rem;
}

.question-preview {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--secondary-text);
}

/* === Question Detail === */
.question-top-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.question-top-link {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

.question-top-link:hover,
.question-top-link:focus-visible {
  text-decoration: underline;
}

.question-top-link.next {
  margin-left: auto;
}

.question-header {
  margin-bottom: 1.5rem;
}

.question-article {
  margin: 1.5rem 0 2rem;
}

.question-article .page-title {
  margin-bottom: 1rem;
}

.question-article .question-body {
  margin-bottom: 0;
}

.question-header h1 {
  margin-bottom: 0.75rem;
}

.question-meta {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.7;
}

.category-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.category-list li {
  display: inline-flex;
}

.category-chip {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background-color: var(--chip-bg);
  color: inherit;
  text-decoration: none;
  font-size: 0.9rem;
  border: 1px solid var(--chip-border);
  transition: var(--transition-border-bg);
}

.category-chip:hover,
.category-chip:focus-visible {
  background-color: var(--chip-hover-bg);
  border-color: var(--chip-hover-border);
}

.category-placeholder {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.category-footer {
  margin-top: 2rem;
}

.question-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.question-body > *:first-child {
  margin-top: 0;
}

.question-body > *:last-child {
  margin-bottom: 0;
}

.related-questions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.related-questions h2 {
  margin: 0;
  font-size: 1.35rem;
}

.related-questions .question-list {
  margin: 0;
}

.bible-ref {
  color: var(--color-link);
  cursor: pointer;
  border-bottom: 1px dotted currentColor;
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
}

.bible-ref:hover,
.bible-ref:focus-visible {
  color: var(--color-link-hover);
  border-bottom-style: solid;
  outline: none;
}

.bible-tooltip {
  display: none;
  position: absolute;
  background: rgba(32, 54, 82, 0.97);
  color: var(--color-link-contrast);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-tooltip);
  max-width: 420px;
  font-size: 0.95rem;
  line-height: 1.5;
  box-shadow: var(--shadow-tooltip);
  border: 1px solid rgba(158, 190, 229, 0.35);
  z-index: 2000;
}

.question-author-card {
  margin-top: 2rem;
}

/* === Category Pages === */
.category-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.category-header h1 {
  margin: 0;
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: inherit;
  text-decoration: none;
}

.category-card:hover,
.category-card:focus-visible {
  text-decoration: none;
  background-color: var(--category-card-hover-bg);
  border-color: var(--card-hover-border);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.category-name {
  font-weight: 600;
}

.category-count {
  font-size: 0.85rem;
  opacity: 0.75;
}

/* === Author Pages === */
.author-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.author-header h1 {
  margin: 0;
}

.author-bio {
  margin: 0;
  opacity: 0.75;
}

/* === Resource Grid === */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.resource-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.resource-card.card-panel:hover,
.resource-card.card-panel:focus-within {
  background-color: var(--resource-card-hover-bg);
  border-color: var(--card-hover-border);
}

.resource-card h2 {
  margin: 0;
  font-size: 1.35rem;
}

.resource-bio {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.78;
}

.resource-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.resource-link {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--surface-border);
  background-color: var(--surface-bg-muted);
  color: inherit;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-border-bg);
}

.resource-link:hover,
.resource-link:focus-visible {
  background-color: var(--surface-bg-hover);
  border-color: var(--surface-border-strong);
}

/* === Pagination === */
.pagination-summary {
  margin: 1rem 0 0.5rem;
  text-align: center;
  font-size: 0.95rem;
  opacity: 0.75;
}

.pagination {
  display: flex;
  justify-content: center;
  margin: 0;
  width: 100%;
}

.pagination ul {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.pagination-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  color: inherit;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition-border-bg-color);
}

.pagination-link:hover,
.pagination-link:focus-visible {
  background-color: var(--card-hover-bg);
  border-color: var(--card-hover-border);
  color: var(--color-heading);
}

.pagination-link.current {
  background-color: var(--card-hover-bg);
  border-color: var(--card-hover-border);
  font-weight: 600;
  cursor: default;
}

.pagination-link.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.4rem 0.2rem;
  color: var(--color-muted);
}

.pagination-wrapper {
  margin: 1.25rem 0 1.25rem;
}

/* === Long Explanation === */
.long-explanation {
  margin-top: 1.5rem;
}

.long-toggle {
  appearance: none;
  border: 1px solid var(--long-toggle-border);
  background: var(--long-toggle-bg);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 1.1rem;
  cursor: pointer;
  transition: var(--transition-border-bg-color);
}

.long-toggle:hover,
.long-toggle:focus-visible {
  background-color: var(--long-toggle-bg-hover);
  border-color: var(--long-toggle-border-hover);
  outline: none;
}

.long-content {
  margin-top: 1rem;
  border: 1px solid var(--long-content-border);
  background: var(--long-content-bg);
  border-radius: var(--radius-long-content);
  padding: 1.25rem;
}

.long-content[hidden] {
  display: none;
}

.long-author {
  margin-top: 1rem;
  font-size: 0.95rem;
  opacity: 0.8;
}

.long-author a {
  color: var(--color-link);
  font-weight: 500;
}

.long-author a:hover,
.long-author a:focus-visible {
  text-decoration: underline;
}

.question-body ul {
  list-style: disc;
  margin-left: 1.5rem;
}

.question-body li {
  margin-left: 0.5rem;
}

/* === Responsive Adjustments === */
@media (max-width: 768px) {
  body {
    font-size: 1rem;
    line-height: var(--line-height-body-mobile);
  }

  main {
    padding: 0 1rem;
    margin: 1.5rem auto;
  }

  .navbar,
  footer {
    padding: 0.75rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .page-title {
    font-size: 1.7rem;
  }
}