/*****************************************************************
BASE
******************************************************************/

:root {
  --background: #000000;
  --panel: rgba(18, 18, 18, 0.82);
  --panel-strong: rgba(28, 28, 28, 0.94);
  --line: rgba(255, 255, 255, 0.16);
  --text-current: #f7f7f2;
  --text-future: rgba(247, 247, 242, 0.7);
  --muted: #a6a69d;
  --danger: #ff9f9f;
  --accent: #d9f99d;
  --reader-font-size: 24px;
  --top-panel-space: 92px;
  --measured-top-panel-height: var(--top-panel-space);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--background);
  color: var(--text-current);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  overflow: hidden;
}

body.panel-hidden {
  --top-panel-space: 0px;
  --measured-top-panel-height: 0px;
}

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

button {
  color: inherit;
}

/*****************************************************************
LAYOUT
******************************************************************/

.app-shell {
  width: 100vw;
  height: 100dvh;
  background: var(--background);
}

.top-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13) 0%, rgba(255, 255, 255, 0.055) 38%, rgba(0, 0, 0, 0.24) 100%),
    linear-gradient(180deg, rgba(30, 34, 36, 0.88) 0%, rgba(12, 14, 15, 0.86) 100%);
  backdrop-filter: blur(24px) saturate(145%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    inset 0 -18px 28px rgba(0, 0, 0, 0.22),
    0 10px 26px rgba(0, 0, 0, 0.34);
  transition: transform 160ms ease, opacity 160ms ease;
}

.top-panel.is-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.toolbar {
  min-height: 54px;
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px;
  overflow-x: auto;
}

.toolbar-group {
  display: flex;
  gap: 8px;
  align-items: center;
  flex: 0 0 auto;
}

.toolbar-group-app {
  margin-left: auto;
}

.toolbar .toolbar-icon-button {
  min-width: 48px;
  min-height: 48px;
  padding: 6px;
  font-size: 28px;
  line-height: 1;
  flex: 0 0 auto;
  border-color: rgba(255, 255, 255, 0.28);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.24) 0%, rgba(255, 255, 255, 0.095) 42%, rgba(0, 0, 0, 0.22) 100%),
    linear-gradient(180deg, rgba(42, 46, 48, 0.86) 0%, rgba(15, 17, 18, 0.88) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    inset 0 -10px 18px rgba(0, 0, 0, 0.26),
    0 4px 12px rgba(0, 0, 0, 0.32);
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.7);
}

.toolbar .toolbar-icon-button.is-active {
  border-color: rgba(217, 249, 157, 0.72);
  background:
    linear-gradient(180deg, rgba(236, 255, 190, 0.36) 0%, rgba(160, 190, 91, 0.22) 44%, rgba(38, 62, 23, 0.3) 100%),
    linear-gradient(180deg, rgba(45, 65, 28, 0.9) 0%, rgba(18, 28, 14, 0.92) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.38),
    inset 0 -10px 18px rgba(16, 40, 12, 0.28),
    0 0 0 2px rgba(217, 249, 157, 0.18),
    0 5px 16px rgba(120, 168, 72, 0.2);
}

.toolbar .toolbar-icon-button:hover,
.toolbar .toolbar-icon-button:focus-visible {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.13) 42%, rgba(0, 0, 0, 0.18) 100%),
    linear-gradient(180deg, rgba(50, 55, 58, 0.9) 0%, rgba(18, 20, 22, 0.9) 100%);
}

.toolbar .toolbar-icon-button.is-active:hover,
.toolbar .toolbar-icon-button.is-active:focus-visible {
  background:
    linear-gradient(180deg, rgba(242, 255, 204, 0.42) 0%, rgba(177, 208, 102, 0.26) 44%, rgba(44, 72, 25, 0.34) 100%),
    linear-gradient(180deg, rgba(52, 74, 31, 0.94) 0%, rgba(20, 32, 15, 0.94) 100%);
}

.toolbar .toolbar-icon-button:active {
  transform: translateY(1px);
  box-shadow:
    inset 0 1px 5px rgba(0, 0, 0, 0.36),
    inset 0 -6px 12px rgba(0, 0, 0, 0.2),
    0 2px 7px rgba(0, 0, 0, 0.28);
}

/* TODO: Consider lightweight mobile long-press tooltips for toolbar icons later. */

.progress-line {
  width: 100%;
  min-height: 38px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-right: 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.35);
  border-left: 0;
  padding: 7px 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.055) 45%, rgba(0, 0, 0, 0.2) 100%),
    linear-gradient(180deg, rgba(26, 29, 31, 0.82) 0%, rgba(10, 11, 12, 0.86) 100%);
  display: flex;
  column-gap: 32px;
  row-gap: 3px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--muted);
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -10px 18px rgba(0, 0, 0, 0.18);
}

.progress-book-title {
  min-width: 0;
  color: var(--text-current);
  font-weight: 650;
  overflow-wrap: anywhere;
}

.progress-book-status {
  color: var(--muted);
  white-space: nowrap;
}

.progress-line:hover,
.progress-line:focus-visible {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.075) 45%, rgba(0, 0, 0, 0.16) 100%),
    linear-gradient(180deg, rgba(31, 35, 37, 0.86) 0%, rgba(12, 14, 15, 0.88) 100%);
}

.reader {
  width: 100vw;
  height: 100dvh;
  padding-top: var(--measured-top-panel-height);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  position: relative;
  outline: 0;
  transition: padding-top 160ms ease;
}

.reader.is-single-panel {
  grid-template-columns: minmax(0, 1fr);
}

.reader-panel {
  min-width: 0;
  min-height: 0;
  padding: clamp(20px, 4vw, 58px);
  overflow: hidden;
}

.reader-panel:first-child {
  border-right: 1px solid var(--line);
}

.reader-panel.is-hidden-panel {
  display: none;
}

.reader.is-single-panel .reader-panel:first-child {
  border-right: 0;
  border-bottom: 0;
}

.reader-column {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-size: var(--reader-font-size);
  line-height: 1.6;
}

.reader:not(.has-long-current-block) .reader-panel,
.reader:not(.has-long-current-block) .reader-column {
  touch-action: none;
}

.reader-column.is-long-current-block .reading-block.is-future {
  display: none;
}

.reading-block {
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  touch-action: none;
}

.reading-block.is-scrollable-current {
  max-height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

.reading-block.is-scroll-proxy {
  touch-action: none;
}

.reading-block.is-paragraph:not(:first-child) {
  margin-top: 1.15em;
}

.reading-block.is-current {
  color: var(--text-current);
}

.reading-block.is-future {
  color: var(--text-future);
}

.reading-block.is-line-break:not(:first-child) {
  margin-top: 0.25em;
}

.reading-block.is-indented {
  text-indent: 1.75em;
}

.empty-state {
  position: absolute;
  inset: var(--measured-top-panel-height) 0 0;
  display: grid;
  place-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  touch-action: none;
  transition: inset 160ms ease;
}

.empty-state strong {
  color: var(--text-current);
  font-size: clamp(28px, 7vw, 52px);
  font-weight: 650;
}

.reader.has-book .empty-state {
  display: none;
}

.manager-frame-host {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: var(--background);
}

.manager-frame-host.hidden {
  display: none;
}

.manager-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: var(--background);
}

/*****************************************************************
CONTROLS
******************************************************************/

.tool-button,
.primary-button,
.secondary-button,
.danger-button,
.icon-button {
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 11px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.075) 45%, rgba(0, 0, 0, 0.22) 100%),
    linear-gradient(180deg, rgba(39, 43, 45, 0.88) 0%, rgba(14, 16, 17, 0.9) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    inset 0 -10px 18px rgba(0, 0, 0, 0.24),
    0 4px 12px rgba(0, 0, 0, 0.24);
  padding: 8px 12px;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.tool-button:hover,
.primary-button:hover,
.secondary-button:hover,
.danger-button:hover,
.icon-button:hover {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.26) 0%, rgba(255, 255, 255, 0.105) 45%, rgba(0, 0, 0, 0.18) 100%),
    linear-gradient(180deg, rgba(48, 53, 56, 0.9) 0%, rgba(17, 19, 21, 0.92) 100%);
}

.tool-button:active,
.primary-button:active,
.secondary-button:active,
.danger-button:active,
.icon-button:active {
  transform: translateY(1px);
}

.tool-button:focus-visible,
.primary-button:focus-visible,
.secondary-button:focus-visible,
.danger-button:focus-visible,
.icon-button:focus-visible {
  outline: 2px solid rgba(191, 219, 254, 0.82);
  outline-offset: 2px;
}

.tool-button:disabled,
.primary-button:disabled,
.secondary-button:disabled,
.danger-button:disabled,
.icon-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.primary-button {
  background:
    linear-gradient(180deg, rgba(217, 249, 157, 0.34) 0%, rgba(122, 168, 83, 0.2) 48%, rgba(29, 55, 20, 0.28) 100%),
    linear-gradient(180deg, rgba(38, 62, 30, 0.9) 0%, rgba(16, 25, 15, 0.92) 100%);
  border-color: rgba(217, 249, 157, 0.58);
}

.danger-button {
  color: var(--danger);
  border-color: rgba(255, 159, 159, 0.58);
  background:
    linear-gradient(180deg, rgba(255, 190, 190, 0.22) 0%, rgba(134, 44, 50, 0.24) 48%, rgba(42, 8, 13, 0.36) 100%),
    linear-gradient(180deg, rgba(64, 22, 28, 0.92) 0%, rgba(22, 8, 12, 0.94) 100%);
}

.icon-button {
  width: 42px;
  padding: 0;
  font-size: 26px;
  line-height: 1;
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/*****************************************************************
DIALOGS
******************************************************************/

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(14px) saturate(125%);
}

.dialog-backdrop.hidden {
  display: none;
}

.dialog {
  width: min(920px, 100%);
  max-height: min(90dvh, 900px);
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.035) 36%, rgba(0, 0, 0, 0.18) 100%),
    rgba(24, 26, 28, 0.94);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 24px 80px rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(20px) saturate(130%);
  overflow: hidden;
  animation: dialog-in 140ms ease-out;
}

@keyframes dialog-in {
  from {
    transform: translateY(8px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.dialog-header {
  min-height: 58px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 10px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.055) 48%, rgba(0, 0, 0, 0.18) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.dialog-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
}

.dialog-body {
  min-height: 0;
  overflow: auto;
  padding: 18px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: var(--muted);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 11px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.035)),
    rgba(7, 8, 9, 0.86);
  color: var(--text-current);
  padding: 10px 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.field input:focus-visible,
.field textarea:focus-visible,
.field select:focus-visible,
.settings-select:focus-visible {
  outline: 2px solid rgba(191, 219, 254, 0.78);
  outline-offset: 2px;
}

.field textarea {
  min-height: 180px;
  resize: vertical;
  line-height: 1.45;
}

.field input.quick-jump-range {
  --quick-range-track: rgba(255, 255, 255, 0.18);
  --quick-range-active: #60a5fa;
  --quick-range-thumb: #bfdbfe;
  --quick-range-track-height: 6px;
  --quick-range-thumb-size: 24px;
  width: 100%;
  min-height: 44px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  cursor: pointer;
}

.field input.quick-jump-range:focus-visible {
  outline: 2px solid var(--quick-range-active);
  outline-offset: 4px;
}

.field input.quick-jump-range::-webkit-slider-runnable-track {
  height: var(--quick-range-track-height);
  border-radius: 999px;
  background: var(--quick-range-track);
}

.field input.quick-jump-range::-webkit-slider-thumb {
  width: var(--quick-range-thumb-size);
  height: var(--quick-range-thumb-size);
  margin-top: calc((var(--quick-range-track-height) - var(--quick-range-thumb-size)) / 2);
  -webkit-appearance: none;
  border: 2px solid var(--quick-range-active);
  border-radius: 50%;
  background: var(--quick-range-thumb);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.38);
}

.field input.quick-jump-range::-moz-range-track {
  height: var(--quick-range-track-height);
  border: 0;
  border-radius: 999px;
  background: var(--quick-range-track);
}

.field input.quick-jump-range::-moz-range-progress {
  height: var(--quick-range-track-height);
  border-radius: 999px;
  background: var(--quick-range-active);
}

.field input.quick-jump-range::-moz-range-thumb {
  width: var(--quick-range-thumb-size);
  height: var(--quick-range-thumb-size);
  border: 2px solid var(--quick-range-active);
  border-radius: 50%;
  background: var(--quick-range-thumb);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.38);
}

.dialog-message {
  color: var(--muted);
  line-height: 1.5;
}

.dialog-message.error {
  color: var(--danger);
}

.quick-jump-book-title {
  color: var(--text-current);
  font-weight: 700;
}

.dialog-actions-end {
  justify-content: flex-end;
}

.import-language-section {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.import-language-section h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
}

.import-language-actions {
  gap: 8px;
}

.import-language-status {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.import-language-status.error {
  color: var(--danger);
}

.visually-hidden-file {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.settings-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}

.settings-tab {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.17) 0%, rgba(255, 255, 255, 0.06) 48%, rgba(0, 0, 0, 0.2) 100%),
    linear-gradient(180deg, rgba(36, 40, 42, 0.88) 0%, rgba(12, 14, 15, 0.9) 100%);
  color: var(--text-current);
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.24),
    inset 0 -9px 16px rgba(0, 0, 0, 0.2),
    0 4px 12px rgba(0, 0, 0, 0.22);
}

.settings-tab.is-selected {
  border-color: rgba(125, 211, 252, 0.7);
  background:
    linear-gradient(180deg, rgba(191, 219, 254, 0.34) 0%, rgba(96, 165, 250, 0.2) 48%, rgba(25, 55, 95, 0.28) 100%),
    linear-gradient(180deg, rgba(33, 55, 78, 0.92) 0%, rgba(13, 23, 36, 0.94) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 0 0 2px rgba(125, 211, 252, 0.14),
    0 5px 16px rgba(56, 118, 180, 0.2);
}

.settings-tab:focus-visible {
  outline: 2px solid rgba(191, 219, 254, 0.86);
  outline-offset: 2px;
}

.settings-tab-panels,
.settings-tab-panel {
  display: grid;
  gap: 11px;
}

.settings-tab-panel[hidden] {
  display: none;
}

.settings-card,
.import-language-section,
.search-result,
.book-item,
.manager-book-card {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.105) 0%, rgba(255, 255, 255, 0.04) 42%, rgba(0, 0, 0, 0.18) 100%),
    rgba(18, 20, 21, 0.86);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -12px 20px rgba(0, 0, 0, 0.14),
    0 8px 24px rgba(0, 0, 0, 0.18);
}

.settings-card {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.settings-card h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
}

.settings-row {
  display: grid;
  gap: 6px;
}

.settings-label {
  color: var(--muted);
}

.setting-control-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.settings-range-row .setting-control-row {
  display: grid;
  grid-template-columns: 1fr auto;
  width: 100%;
}

.setting-value {
  min-width: 70px;
  text-align: center;
  color: var(--text-current);
}

.checkbox-row {
  min-height: 44px;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--text-current);
  cursor: pointer;
}

.checkbox-row input {
  width: 20px;
  height: 20px;
  accent-color: #8fd3a5;
}

.settings-select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 11px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.045) 100%),
    rgba(10, 12, 13, 0.9);
  color: var(--text-current);
  padding: 10px 12px;
}

.settings-range-row input[type="range"] {
  --range-track: rgba(255, 255, 255, 0.16);
  --range-active: #60a5fa;
  --range-thumb: #bfdbfe;
  --range-fill: 50%;
  width: 100%;
  min-height: 46px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.settings-range-row input[type="range"]:focus-visible {
  outline: 2px solid var(--range-active);
  outline-offset: 2px;
}

.settings-range-row input[type="range"]::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--range-active) 0%, var(--range-active) var(--range-fill), transparent var(--range-fill)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(0, 0, 0, 0.18)),
    var(--range-track);
}

.settings-range-row input[type="range"]::-webkit-slider-thumb {
  width: 24px;
  height: 24px;
  margin-top: -8px;
  -webkit-appearance: none;
  border: 2px solid var(--range-active);
  border-radius: 50%;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(191, 219, 254, 0.92));
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.42);
}

.settings-range-row input[type="range"]::-moz-range-track {
  height: 8px;
  border: 0;
  border-radius: 999px;
  background: var(--range-track);
}

.settings-range-row input[type="range"]::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--range-active);
}

.settings-range-row input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border: 2px solid var(--range-active);
  border-radius: 50%;
  background: var(--range-thumb);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.42);
}

.settings-help {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.settings-help.error {
  color: var(--danger);
}

.about-app {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.about-app p {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin: 0;
  line-height: 1.45;
}

.about-app .about-app-title {
  display: block;
  color: var(--text-current);
  font-weight: 650;
}

.about-app p span:first-child {
  color: var(--muted);
}

.about-app p span:last-child {
  color: var(--text-current);
  text-align: right;
}

.choice-row,
.swatch-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.speech-language-row {
  align-items: center;
}

.choice-button.is-selected,
.swatch-button.is-selected {
  border-color: rgba(125, 211, 252, 0.72);
  background:
    linear-gradient(180deg, rgba(191, 219, 254, 0.32) 0%, rgba(20, 80, 105, 0.24) 100%),
    rgba(18, 32, 42, 0.92);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.26),
    0 0 0 2px rgba(125, 211, 252, 0.16),
    0 5px 14px rgba(56, 189, 248, 0.14);
}

.swatch-button {
  position: relative;
  width: 44px;
  min-height: 44px;
  border-radius: 50%;
  padding: 0;
}

.swatch-button.is-selected::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #0b0c0d;
  font-weight: 800;
  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.4);
}

.data-action-row {
  align-items: stretch;
}

.data-action-row .tool-button,
.data-action-row .danger-button {
  min-width: min(100%, 190px);
}

.data-backup-button {
  border-color: rgba(94, 234, 212, 0.45);
}

.data-restore-button {
  border-color: rgba(147, 197, 253, 0.48);
}

.search-results {
  display: grid;
  gap: 8px;
}

.search-controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.search-scope-group {
  flex: 1 1 auto;
}

.search-controls-row .primary-button {
  margin-left: auto;
}

.search-result {
  width: 100%;
  display: grid;
  gap: 4px;
  color: var(--text-current);
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
}

.search-result:hover {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.055) 42%, rgba(0, 0, 0, 0.14) 100%),
    rgba(24, 27, 28, 0.9);
}

.search-result-meta {
  color: var(--muted);
  font-size: 14px;
}

.book-list {
  display: grid;
  gap: 8px;
}

.book-item {
  width: 100%;
  display: block;
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
}

.book-item-content {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.book-item-title {
  color: var(--text-current);
  font-weight: 650;
  overflow-wrap: anywhere;
}

.book-item-language,
.book-item-progress {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.book-item-progress {
  white-space: nowrap;
}

/*****************************************************************
MANAGER
******************************************************************/

.manager-shell {
  width: 100%;
  height: 100dvh;
  padding: 18px;
  background: var(--background);
  color: var(--text-current);
  overflow: auto;
}

.manager-header {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.04) 44%, rgba(0, 0, 0, 0.16) 100%),
    rgba(18, 20, 21, 0.86);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 8px 24px rgba(0, 0, 0, 0.2);
}

.manager-header h1 {
  margin: 0;
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 650;
}

.manager-header p {
  margin: 5px 0 0;
  color: var(--muted);
}

.manager-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  padding: 18px 0;
}

.manager-status {
  margin: 0;
  color: var(--accent);
}

.manager-section h2 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 650;
}

.manager-book-list {
  display: grid;
  gap: 10px;
}

.manager-book-card {
  padding: 14px;
  display: grid;
  gap: 12px;
}

.manager-book-main {
  display: grid;
  gap: 6px;
}

.manager-book-title {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.book-item-language,
.book-item-progress {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.book-item-progress {
  white-space: nowrap;
}

.manager-book-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/*****************************************************************
RESPONSIVE
******************************************************************/

@media (orientation: portrait) and (max-width: 760px) {
  :root {
    --portrait-toolbar-padding-x: 5px;
    --portrait-toolbar-gap: 3px;
    --portrait-toolbar-button-size: clamp(44px, calc((100vw - (2 * var(--portrait-toolbar-padding-x)) - (5 * var(--portrait-toolbar-gap))) / 6), 54px);
    --portrait-toolbar-icon-size: clamp(25px, calc(var(--portrait-toolbar-button-size) * 0.54), 29px);
    --top-panel-space: calc(var(--portrait-toolbar-button-size) + 44px + env(safe-area-inset-top));
  }

  body.panel-hidden {
    --top-panel-space: 0px;
  }

  .top-panel {
    padding-top: env(safe-area-inset-top);
  }

  .reader {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  }

  .reader.is-single-panel {
    grid-template-rows: minmax(0, 1fr);
  }

  .reader-panel {
    padding: 14px 12px;
  }

  .reader-panel:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding-top: max(18px, env(safe-area-inset-top));
  }

  .reader-panel:last-of-type {
    padding-bottom: max(18px, env(safe-area-inset-bottom));
  }

  .toolbar {
    min-height: calc(var(--portrait-toolbar-button-size) + 2px);
    flex-wrap: nowrap;
    gap: var(--portrait-toolbar-gap);
    padding: 5px var(--portrait-toolbar-padding-x);
    overflow-x: hidden;
  }

  .toolbar-group {
    gap: var(--portrait-toolbar-gap);
  }

  .toolbar-group-app {
    margin-left: 0;
  }

  .toolbar .toolbar-icon-button {
    min-width: var(--portrait-toolbar-button-size);
    min-height: var(--portrait-toolbar-button-size);
    padding: 4px;
    font-size: var(--portrait-toolbar-icon-size);
    border-radius: 11px;
  }

  .progress-line {
    min-height: 34px;
    padding: 5px 10px;
    column-gap: 18px;
    row-gap: 2px;
    line-height: 1.25;
  }

  .dialog-backdrop {
    padding: calc(10px + env(safe-area-inset-top)) 10px calc(10px + env(safe-area-inset-bottom));
  }

  .dialog {
    max-height: calc(100dvh - 20px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  }

  .dialog-body {
    padding: 12px;
  }

  .settings-tabs {
    gap: 5px;
  }

  .settings-tab {
    min-height: 42px;
    padding: 6px 4px;
    font-size: 15px;
  }

  .settings-card {
    padding: 12px;
  }

  .settings-range-row .setting-control-row {
    grid-template-columns: 1fr;
  }

  .data-action-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .data-action-row .tool-button,
  .data-action-row .danger-button {
    width: 100%;
  }

  .search-scope-group {
    flex-basis: 100%;
  }

  .search-controls-row .primary-button {
    margin-left: auto;
  }
}

@media (orientation: portrait) and (max-width: 380px) {
  :root {
    --portrait-toolbar-button-size: clamp(43px, calc((100vw - (2 * var(--portrait-toolbar-padding-x)) - (5 * var(--portrait-toolbar-gap))) / 6), 50px);
    --portrait-toolbar-icon-size: clamp(24px, calc(var(--portrait-toolbar-button-size) * 0.54), 27px);
  }

  .progress-line {
    min-height: 32px;
    padding: 4px 8px;
    column-gap: 12px;
  }

  .settings-tab {
    font-size: 14px;
  }
}

@media (orientation: portrait) and (max-width: 340px) {
  :root {
    --portrait-toolbar-button-size: clamp(43px, calc((100vw - (2 * var(--portrait-toolbar-padding-x)) - (5 * var(--portrait-toolbar-gap))) / 6), 45px);
    --portrait-toolbar-icon-size: clamp(24px, calc(var(--portrait-toolbar-button-size) * 0.55), 25px);
  }
}

@media (orientation: landscape) and (max-height: 520px) and (max-width: 950px) {
  .toolbar {
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }

  .reader-panel {
    padding-top: max(10px, env(safe-area-inset-top));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    padding-left: 12px;
    padding-right: 12px;
  }

  .reader-panel:first-child {
    padding-left: max(12px, env(safe-area-inset-left));
  }

  .reader-panel:last-of-type {
    padding-right: max(12px, env(safe-area-inset-right));
  }
}

@media (max-width: 520px) {
  :root {
    --reader-font-size: 21px;
  }

  .progress-line {
    font-size: 14px;
    flex-direction: column;
    gap: 2px;
  }
}

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