:root {
  color-scheme: light;
  --ink: #171717;
  --muted: #5b5b5b;
  --accent: #6e351b;
  --accent-soft: #f2d2c2;
  --cta: #5b5b5b;
  --cta-hover: #171717;
  --surface: #fffdf8;
  --panel: #ffffff;
  --border: #e6ded6;
  --shadow: 0 18px 40px rgba(29, 18, 10, 0.12);
  --screen-width: 632px;
  --screen-height: 840px;
  --screen-bg: #f4efe6;
  --screen-bg-dark: #1d1a17;
}

* {
  box-sizing: border-box;
}

.hidden {
  display: none;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 20%, #f6e9de 0%, #fff8f0 45%, #f6efe9 100%);
  min-height: 100vh;
}

.page {
  max-width: 1380px;
  margin: 0 auto;
  padding: 28px 16px 40px;
}

header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(2rem, 3.4vw, 3rem);
  margin: 0;
  letter-spacing: -0.02em;
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 640px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow);
}

label {
  font-size: 1rem;
  color: #3e3530;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 6px;
  padding-bottom: 6px;
  font-weight: 600;
}

label .value {
  float: right;
  font-weight: 400;
  font-size: 0.75rem;
  text-transform: none;
  color: var(--muted);
}

input[type="range"] {
  width: 100%;
  font: inherit;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 6px 10px;
  background: var(--surface);
  color: var(--ink);
  accent-color: #999;
}

select {
  width: 100%;
  font: inherit;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  background: var(--surface);
  color: var(--ink);
}

.sidebar-column {
  display: flex;
  flex-direction: column;
  align-self: center;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.sidebar-controls label {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.sidebar-controls > div {
  padding-top: 0;
}

.sidebar-controls .control-group {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 2px;
}

.sidebar-actions-group {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 8px;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toggle-label {
  font-size: 0.9rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.toggle-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--muted);
}

.screen-icon--moon {
  display: none;
}

.toggle-icon--text {
  width: auto;
  height: auto;
  font-family: serif;
  font-weight: bold;
  font-style: italic;
  font-size: 1rem;
  line-height: 1;
  text-transform: none;
  font-variant-ligatures: common-ligatures;
}

.toggle-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  appearance: none;
}

.toggle-track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2px;
  width: 170px;
  padding: 10px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
}

.toggle-option {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  z-index: 2;
  user-select: none;
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  width: calc(50% - 3px);
  border-radius: 999px;
  background: var(--accent);
  border: 1px solid var(--border);
  box-shadow: none;
  transition: transform 0.2s ease, background 0.2s ease;
}

.toggle-input:not(:checked) + .toggle-track .toggle-option--left {
  color: #fff;
}

.toggle-input:checked + .toggle-track .toggle-option--right {
  color: #fff;
}

.toggle-input:checked + .toggle-track .toggle-thumb {
  transform: translateX(100%);
}

/* Screen toggle: Light = white thumb, Dark = black thumb */
#darkModeToggle + .toggle-track .toggle-thumb {
  background: var(--screen-bg);
  border: 1px solid var(--border);
  box-shadow: none;
}

#darkModeToggle:not(:checked) + .toggle-track .toggle-option--left {
  color: var(--ink);
}

#darkModeToggle:checked + .toggle-track .toggle-thumb {
  background: var(--screen-bg-dark);
  border-color: #333;
  box-shadow: none;
}

#darkModeToggle:checked + .toggle-track .toggle-option--right {
  color: #fff;
}

/* Bezel toggle: Black = dark thumb, White = white thumb */
#bezelToggle + .toggle-track .toggle-thumb {
  background: #1a1a1a;
  border: 1px solid #333;
  box-shadow: none;
}

#bezelToggle:not(:checked) + .toggle-track .toggle-option--left {
  color: #fff;
}

#bezelToggle:checked + .toggle-track .toggle-thumb {
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: none;
}

#bezelToggle:checked + .toggle-track .toggle-option--right {
  color: var(--ink);
}

.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.device-footer {
  margin-top: 18px;
  text-align: center;
  color: #8a7f74;
  font-size: 0.95rem;
}

.device-footer p:first-of-type {
  color: #333;
}

.device-footer a {
  color: #4672ad;
  text-decoration: none;
  font-weight: 600;
}

.device-footer a:hover {
  color: #35567f;
}

.attribution {
  margin-top: 4px;
  font-size: 0.8rem;
}

.sidebar-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 16px;
}

.sidebar-actions .button--primary {
  border-color: var(--cta);
  background: var(--cta);
  color: #fff;
}

.sidebar-actions .button--primary:hover {
  background: var(--cta-hover);
  border-color: var(--cta-hover);
}

.sidebar-actions a:hover {
  background-color: #EEE;
}

.sidebar-notice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px 0;
  margin-top: 15px;
}

.sidebar-notice img {
  flex-shrink: 0;
  margin-top: 2px;
  border-radius: 2px;
}

.sidebar-notice p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

.sidebar-notice a {
  color: #336699;
  text-decoration: none;
}

.sidebar-notice a:hover {
  color: #264d73;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  gap: 8px;
}

.button svg {
  width: 16px;
  height: 16px;
}

.preview {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 0;
}

@media (min-width: 1051px) {
  .preview {
    min-height: calc(100vh - 68px);
    justify-content: center;
  }
}

.reader {
  align-self: center;
  width: min(100%, calc(var(--screen-width) + 56px));
  background: #ffffff;
  border-radius: 24px;
  padding: 36px 30px 54px;
  box-shadow: 0 22px 50px rgba(15, 10, 8, 0.28);
  border: 2px solid #e7e1da;
  position: relative;
  max-height: 100vh;
}

.reader.is-bezel-dark {
  background: #0f0f0f;
  border-color: #111;
  box-shadow: 0 22px 50px rgba(15, 10, 8, 0.32);
}

.reader-screen {
  background: var(--screen-bg);
  border-radius: 0;
  padding: 22px;
  width: 100%;
  min-height: 520px;
  height: min(var(--screen-height), calc(100vh - 140px));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow: hidden;
}

.reader.is-dark .reader-screen {
  background: var(--screen-bg-dark);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.reader.is-dark .reader-toolbar,
.reader.is-dark .reader-footer {
  color: #b8ada3;
}

.reader.is-dark .sample {
  color: #f3ede7;
}

.reader.is-dark .chapter-title {
  color: #d2c4b6;
}

.reader-toolbar {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.85rem;
  color: #6b6158;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.reader-meta {
  font-weight: 600;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.reader-dot {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.7;
}

.sample {
  padding: 8px 6px 0;
  min-height: 220px;
  line-height: 1.45;
  color: #1f1a16;
  flex: 1;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: anywhere;
  position: relative;
}

.sample::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 56px;
  background: linear-gradient(to bottom, rgba(244, 239, 230, 0), rgba(244, 239, 230, 1));
  pointer-events: none;
}

.reader.is-dark .sample::after {
  background: linear-gradient(to bottom, rgba(29, 26, 23, 0), rgba(29, 26, 23, 1));
}

.chapter-title {
  margin: 0 0 2em;
  padding-top: 0.5em;
  text-align: center;
  font-size: 1.5em;
  color: #3a332c;
}

.sample p {
  margin: 0;
  text-indent: 1.5em;
}

.sample p:first-child {
  text-indent: 0;
}

.reader-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.8rem;
  color: #8a7f74;
  padding-top: 4px;
  margin-top: auto;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.font-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 8px;
  max-height: calc(var(--screen-height) - 200px);
  overflow: auto;
  padding-right: 6px;
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

.font-sections {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quick-title {
  font-size: 0.9rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  padding-bottom: 6px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
}

.quick-disclaimer {
  margin-top: -4px;
  font-size: 0.9rem;
  line-height: 1.3rem;
  color: #999;
  font-style: italic;
}

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

.quick-star {
  display: inline-block;
  width: 8px;
  font-size: 0.9rem;
  text-align: center;
  color: var(--muted);
}

summary.quick-title {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 0;
  padding-bottom: 0;
}

summary.quick-title::-webkit-details-marker {
  display: none;
}

details .quick-title::after {
  content: "Show";
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--border);
  text-transform: uppercase;
  margin-left: auto;
  transition: color 0.15s ease;
}

details .quick-title:hover::after {
  color: var(--muted);
}

details .quick-title::before {
  content: "";
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid var(--muted);
  transition: transform 0.2s ease;
}

details[open] .quick-title::after {
  content: "Hide";
}

details[open] .quick-title::before {
  transform: rotate(90deg);
}

details[open] .quick-title {
  padding-bottom: 10px;
}

.quick-group + .quick-group {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 10px;
}

#extraFonts {
  padding: 20px 0 10px;
}

#extraFonts > .font-list {
  max-height: 280px;
  overflow-y: scroll;
  scrollbar-width: none;
}

#extraFonts > .font-list::-webkit-scrollbar {
  display: none;
}

#extraFonts[open] > .font-list .scroll-hint {
  display: none;
}

#extraFonts[open] > .font-list.is-overflowing .scroll-hint {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  position: sticky;
  bottom: 0;
  height: 72px;
  margin-top: -72px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 1) 80%);
  pointer-events: none;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: 6px;
  grid-column: 1 / -1;
}

.quick-group > .font-list {
  margin-top: 10px;
}

.font-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 4px 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease-out, border-color 0.15s ease-out;
}

.font-card:hover {
  border-color: var(--accent-soft);
  background: var(--accent-soft);
}

.font-card.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.font-card p {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1;
}

.font-card.is-ninepoint p {
  transform: translateY(1px);
}

.font-card.is-charis p {
  transform: translateY(-1px);
}

@media (max-width: 1050px) {
  :root {
    --screen-width: 480px;
    --screen-height: 640px;
  }

  .layout {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .reader {
    width: min(100%, 520px);
    max-height: 100vh;
  }

  .reader-screen {
    height: min(var(--screen-height), calc(100vh - 120px));
    min-height: 420px;
  }

  .font-list {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .preview {
    order: 1;
  }

  .sidebar-column {
    order: 2;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  :root {
    --screen-height: 100vh;
  }

  .page {
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .reader {
    padding: 16px 16px 20px;
    border-radius: 14px;
    max-height: calc(100vh - 24px);
  }

  .reader-screen {
    min-height: 0;
    height: calc(100vh - 100px);
    padding: 12px 16px;
    gap: 8px;
  }

  .sample {
    min-height: 0;
  }

  .reader-toolbar,
  .reader-footer {
    font-size: 0.75rem;
  }
}

@media (max-width: 640px) {
  :root {
    --screen-width: 320px;
    --screen-height: 500px;
  }

  .page {
    padding-top: 20px;
  }

  .reader {
    width: min(100%, 360px);
    padding: 20px 16px 28px;
    border-radius: 14px;
    max-height: 100vh;
  }

  .reader-screen {
    padding: 16px;
    min-height: 500px;
    height: min(var(--screen-height), calc(100vh - 120px));
  }
}