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

:root {
  --color-bg: #ffffff;
  --color-text: #1f2937;
  --color-text-muted: #4b5563;
  --color-accent: #a855f7;
  --color-heading: #111827;
  --color-border: #e5e7eb;
  --color-card-bg: #f9fafb;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

/* Dark theme */
html.theme-dark {
  --color-bg: #111827;
  --color-text: #ffffff;
  --color-text-muted: #d1d5db;
  --color-accent: #a855f7;
  --color-heading: #ffffff;
  --color-border: #374151;
  --color-card-bg: #1f2937;
}

/* Light theme */
html.theme-light {
  --color-bg: #ffffff;
  --color-text: #1f2937;
  --color-text-muted: #4b5563;
  --color-accent: #6366f1;
  --color-heading: #111827;
  --color-border: #e5e7eb;
  --color-card-bg: #f9fafb;
}

/* Sepia Light theme */
html.theme-sepia-light {
  --color-bg: #f4ecd8;
  --color-text: #3d3226;
  --color-text-muted: #5c4a3a;
  --color-accent: #8b6b47;
  --color-heading: #2c2416;
  --color-border: #d4c4aa;
  --color-card-bg: #e8dcc4;
}

/* Sepia Dark theme */
html.theme-sepia-dark {
  --color-bg: #2c2416;
  --color-text: #d4c4aa;
  --color-text-muted: #b8a88f;
  --color-accent: #a89278;
  --color-heading: #e8dcc4;
  --color-border: #4a3e2e;
  --color-card-bg: #3a2f20;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  transition:
    background 0.3s ease,
    color 0.3s ease;
}

/* Coming Soon page styling */
body:has(.coming-soon) {
  display: flex;
  align-items: center;
  justify-content: center;
}

.coming-soon {
  text-align: center;
  padding: 2rem;
}

.coming-soon h1 {
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(
    135deg,
    var(--color-text) 40%,
    var(--color-accent)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Content pages styling */
.content-page,
.changelog-page,
.legal-page,
.help-page,
.faq-page {
  padding: 12px;
  max-width: 100%;
  line-height: 1.6;
  /* Ensure content pages don't inherit coming soon styles */
  display: block;
}

/* Override body flex for content pages */
body:has(.content-page),
body:has(.changelog-page),
body:has(.legal-page),
body:has(.help-page),
body:has(.faq-page) {
  display: block;
  align-items: initial;
  justify-content: initial;
}

/* Typography */
h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 0;
  color: var(--color-heading);
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--color-heading);
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--color-heading);
}

p {
  font-size: 15px;
  margin-top: 0;
  margin-bottom: 16px;
  color: var(--color-text-muted);
}

ul,
ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

li {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
  color: var(--color-text);
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.last-updated {
  font-size: 13px;
  margin-bottom: 24px;
  color: var(--color-text-muted);
  opacity: 0.7;
}

.section {
  margin-bottom: 24px;
}

/* FAQ-specific */
.faq-item {
  background-color: var(--color-card-bg);
  border-left: 3px solid var(--color-accent);
  padding: 16px;
  margin-bottom: 16px;
  border-radius: 8px;
}

.faq-question {
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-heading);
}

.faq-answer {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* Legal pages */
.contact-info {
  background-color: var(--color-card-bg);
  border-radius: 8px;
  padding: 20px;
  margin: 24px 0;
}

.contact-info p {
  margin-bottom: 8px;
}

/* Changelog */
.version-date {
  font-size: 14px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  opacity: 0.7;
}

.badge {
  display: inline-block;
  padding: 1px 4px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 4px;
}

.badge-new {
  background-color: #10b981;
  color: #fff;
}

.badge-improved {
  background-color: #3b82f6;
  color: #fff;
}

.badge-fixed {
  background-color: #f59e0b;
  color: #fff;
}

.feature {
  background-color: var(--color-card-bg);
  border-left: 3px solid var(--color-accent);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 12px;
}

.feature-title {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-heading);
}

.feature-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ── FAQ-specific styles ── */
.faq-page {
  margin: 0 auto;
  max-width: var(--max-width, 800px);
}

/* ── Tab Navigation ── */
.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
}

.tab {
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  border: 1.5px solid var(--color-border);
  background: var(--color-card-bg);
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.2s;
}

.tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.tab.active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
}

/* ── FAQ Sections ── */
.faq-section {
  display: block;
  margin-bottom: 2rem;
}

.faq-section.hidden {
  display: none;
}

.category-heading {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-top: 1.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
}

/* ── FAQ Markdown Content ── */
.faq-markdown {
  color: var(--color-text-muted);
  line-height: 1.8;
}

.faq-markdown > *:first-child {
  margin-top: 0;
}

.faq-markdown h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.faq-markdown h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-heading);
  margin-top: 0.75rem;
  margin-bottom: 0.25rem;
}

.faq-markdown p {
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
}

.faq-markdown ul,
.faq-markdown ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
  color: var(--color-text-muted);
}

.faq-markdown li {
  margin-bottom: 0.35rem;
}

.faq-markdown a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

.faq-markdown a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.faq-markdown strong {
  color: var(--color-text);
  font-weight: 600;
}

.faq-markdown code {
  background: var(--color-card-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.9em;
}

/* ── FAQ Collapsible Cards ── */
.faq-card {
  background: var(--color-card-bg);
  border-radius: 12px;
  margin-bottom: 0.75rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.faq-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 0.75rem;
  cursor: pointer;
  text-align: left;
  gap: 0.75rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  transition: background 0.2s;
}

.faq-card-header:hover {
  background: var(--color-bg);
}

.faq-card-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0;
  flex: 1;
}

.faq-chevron {
  font-size: 1.4rem;
  color: var(--color-accent);
  transition: transform 0.2s ease;
  line-height: 1;
  flex-shrink: 0;
}

.faq-chevron.rotated {
  transform: rotate(90deg);
}

.faq-card-body {
  display: none;
  padding: 0 0.75rem;
  border-top: 1px solid var(--color-border);
}

.faq-card-body.open {
  display: block;
}

.faq-card-body p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0.75rem 0;
}

.faq-card-body a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

.faq-card-body a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.faq-card-body strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Error Page ── */
.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.error-content {
  text-align: center;
  max-width: 600px;
}

.error-code {
  font-size: clamp(6rem, 15vw, 10rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(
    135deg,
    var(--color-text) 40%,
    var(--color-accent)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1;
}

.error-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1rem;
}

.error-message {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.error-button {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
}

.error-button:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4);
}

.error-button:active {
  transform: translateY(0);
}

/* ── Responsive FAQ ── */
@media (max-width: 640px) {
  .tab-row {
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }

  .tab {
    padding: 0.4rem 0.9rem;
    font-size: 0.8rem;
  }

  .category-heading {
    font-size: 1.05rem;
    margin-top: 1.25rem;
  }

  .faq-markdown ul,
  .faq-markdown ol {
    padding-left: 1.5rem;
  }
}