:root {
  color-scheme: light;
  --bg: #f8faf7;
  --surface: #ffffff;
  --surface-2: #eef4f1;
  --text: #13201d;
  --muted: #52635e;
  --border: #c9d4d0;
  --primary: #1d5c4d;
  --primary-strong: #123d34;
  --primary-soft: #dbeae5;
  --accent: #a95627;
  --accent-soft: #f0e2d7;
  --blue: #315f88;
  --danger: #8d2d2d;
  --focus: #0b6fdb;
  --shadow: 0 12px 34px rgba(19, 32, 29, 0.08);
  --text-scale: 1;
  --arabic-scale: 1.35;
  --line-space: 1.55;
  font-family:
    "Avenir Next", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: calc(16px * var(--text-scale));
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  line-height: var(--line-space);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select {
  touch-action: manipulation;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.5rem;
  z-index: 20;
  transform: translateY(-140%);
  background: var(--text);
  color: var(--surface);
  padding: 0.75rem 1rem;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.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;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.75rem;
}

.brand img {
  flex: 0 0 auto;
  border-radius: 8px;
}

.brand h1 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.1;
}

.brand p {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.2;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem);
}

.view {
  display: grid;
  gap: 1.25rem;
}

.view-header {
  display: grid;
  gap: 0.45rem;
}

.view-header h2,
.reader-title {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.2;
}

.view-header p,
.meta-line,
.source-line {
  margin: 0;
  color: var(--muted);
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.75rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.toolbar.spread {
  justify-content: space-between;
}

button,
.button-link {
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0.72rem 0.95rem;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
}

button:hover,
.button-link:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: white;
}

.primary:hover {
  border-color: var(--primary-strong);
  background: var(--primary-strong);
}

.accent {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.quiet {
  background: transparent;
}

.large-control {
  min-height: 58px;
  padding: 0.9rem 1rem;
  font-weight: 700;
}

.panel,
.ayah-panel,
.settings-group,
.list-item,
.result-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel,
.ayah-panel,
.settings-group {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-item {
  display: grid;
  gap: 0.25rem;
  padding: 1rem;
}

.list-item button {
  display: grid;
  gap: 0.2rem;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
}

.list-item button:hover {
  background: transparent;
}

.item-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 800;
}

.item-title .number {
  color: var(--accent);
}

.item-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 700;
}

input[type="search"],
input[type="number"],
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0.7rem 0.8rem;
}

input[type="range"] {
  width: 100%;
  min-height: 48px;
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.reader-position {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.92rem;
}

.arabic-text {
  margin: 0;
  direction: rtl;
  text-align: right;
  font-family:
    "Geeza Pro", "KFGQPC Uthman Taha Naskh", "Amiri", "Scheherazade New", serif;
  font-size: calc(1.85rem * var(--arabic-scale));
  line-height: 1.95;
  word-spacing: 0.12em;
}

.translation-text,
.transliteration-text,
.explanation-text {
  margin: 0;
  max-width: 78ch;
}

.transliteration-text {
  font-size: 1.12rem;
  font-weight: 700;
}

.ayah-sections {
  display: grid;
  gap: 1rem;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  line-height: 1.25;
}

.audio-controls {
  display: grid;
  gap: 0.75rem;
}

.player-scope,
.jump-panel {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  background: var(--surface-2);
}

.player-scope legend {
  padding: 0 0.35rem;
  font-weight: 900;
}

.range-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.75rem;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.6rem;
}

.progress {
  width: 100%;
  accent-color: var(--primary);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.settings-group {
  display: grid;
  align-content: start;
  gap: 0.8rem;
}

.settings-group legend,
.settings-group h3 {
  margin: 0;
  font-weight: 900;
}

.check-label {
  display: grid;
  grid-template-columns: 1.4rem minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
}

.check-label input {
  width: 1.2rem;
  height: 1.2rem;
  accent-color: var(--primary);
}

.source-list {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.2rem;
}

.empty {
  padding: 1rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.loading {
  min-height: 50vh;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 800;
}

.error {
  border-left: 6px solid var(--danger);
}

body.high-contrast {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #edf7f3;
  --text: #000000;
  --muted: #1d1d1d;
  --border: #000000;
  --primary: #005a46;
  --primary-strong: #003d31;
  --primary-soft: #d9f0e9;
  --accent: #7a3300;
  --accent-soft: #fff0df;
  --focus: #003cff;
  --shadow: none;
}

body.simple-mode .source-line.optional,
body.simple-mode .optional-visual {
  display: none;
}

body.dyslexic-mode {
  font-family: Verdana, "Trebuchet MS", system-ui, sans-serif;
}

body.large-controls button,
body.large-controls .button-link {
  min-height: 58px;
}

@media (min-width: 860px) {
  .reader-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }

  .reader-layout .side-panel {
    position: sticky;
    top: 6rem;
  }
}

@media (max-width: 640px) {
  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
    justify-content: stretch;
  }

  .top-actions button {
    flex: 1 1 130px;
  }

  .view-header h2,
  .reader-title {
    font-size: 1.45rem;
  }

  .arabic-text {
    font-size: calc(1.55rem * var(--arabic-scale));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}