html:root {
  --background: rgb(245, 247, 250);
  --card-background: white;
  --header-text: rgb(35, 45, 60);
  --muted-text: rgb(95, 105, 120);
  --accent: rgb(49, 97, 150);
  --grid: rgb(224, 229, 235);
  --info-bg: rgb(238, 244, 252);
  --info-border: rgb(190, 210, 235);
  --row-alt: rgb(248, 250, 253);
  --table-header: rgb(232, 237, 244);
  --field-background: white;
  --button-background: rgb(239, 239, 239);
  --tile-background: rgb(250, 252, 255);
  color-scheme: light;
}

html[data-effective-theme="dark"],
html.theme-dark {
  --background: rgb(20, 24, 31);
  --card-background: rgb(31, 37, 47);
  --header-text: rgb(235, 239, 245);
  --muted-text: rgb(180, 190, 204);
  --accent: rgb(142, 188, 238);
  --grid: rgb(70, 80, 96);
  --info-bg: rgb(43, 57, 76);
  --info-border: rgb(86, 111, 143);
  --row-alt: rgb(38, 45, 57);
  --table-header: rgb(50, 60, 76);
  --field-background: rgb(24, 29, 37);
  --button-background: rgb(43, 51, 65);
  --tile-background: rgb(36, 43, 55);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; min-height: 100%; }

body {
  background: var(--background);
  color: var(--header-text);
  font-family: "Noto Sans Armenian", "Noto Sans", "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  transition: background-color 150ms ease, color 150ms ease;
}

.app {
  max-width: 1000px;
  margin: 0 auto;
  padding: 18px;
}

.header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.title-block { flex: 1 1 420px; min-width: 260px; }
.title-block h1 { margin: 0; font-size: 24px; font-weight: 700; }
#subtitle { margin: 2px 0 0; color: var(--muted-text); font-size: 13px; }

.header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex: 0 0 auto;
}

.theme-controls {
  display: grid;
  grid-template-columns: auto 115px;
  gap: 8px;
  align-items: center;
}

.theme-controls label,
.mode-control label {
  font-weight: 700;
  font-size: 13px;
}

select,
textarea,
button {
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
}

select {
  height: 32px;
  border: 1px solid rgb(170, 178, 188);
  background: var(--field-background);
  color: var(--header-text);
  font: inherit;
  font-size: 13px;
  padding: 0 28px 0 8px;
  border-radius: 2px;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted-text) 50%), linear-gradient(135deg, var(--muted-text) 50%, transparent 50%);
  background-position: calc(100% - 14px) 13px, calc(100% - 9px) 13px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.card {
  background: var(--card-background);
  border: 1px solid var(--grid);
  padding: 14px;
  margin-bottom: 14px;
}

.card h2 { font-size: 16px; margin: 0 0 12px; }

.transliterator-controls {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  gap: 16px;
  align-items: end;
}

.mode-control { display: grid; gap: 6px; }
#modeSelect { width: 100%; min-width: 240px; }

.button-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  min-width: 130px;
}

.control-button {
  height: 32px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  background: var(--button-background);
  color: var(--header-text);
  border: 1px solid var(--grid);
  border-radius: 2px;
  padding: 0 12px;
}

.control-button.primary {
  background: var(--info-bg);
  color: var(--accent);
  border-color: var(--info-border);
}

.instructions p,
.notes p {
  margin: 0;
  color: var(--muted-text);
  font-size: 12px;
  line-height: 1.45;
}

.text-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.textarea-card {
  display: flex;
  flex-direction: column;
  min-height: 520px;
  margin-bottom: 0;
}

.textarea-card label {
  font-weight: 700;
  font-size: 13px;
  color: var(--header-text);
}

.textarea-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 40px;
  margin-bottom: 8px;
}

.textarea-header label {
  margin-bottom: 0;
}

.textarea-header-spacer {
  width: 64px;
  min-width: 64px;
  height: 30px;
  display: inline-block;
}

.control-button.compact {
  height: 30px;
  min-height: 30px;
  padding: 0 12px;
  font-size: 12px;
}

.copy-button.copied,
.mobile-action-bar .copied {
  background: var(--info-bg);
  color: var(--accent);
  border-color: var(--info-border);
}

.mobile-action-bar {
  display: none;
}

textarea {
  flex: 1 1 auto;
  width: 100%;
  min-height: 460px;
  resize: vertical;
  border: 1px solid var(--grid);
  background: var(--field-background);
  color: var(--header-text);
  font-family: "Noto Sans Armenian", "Noto Sans", "Segoe UI", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  padding: 12px;
  border-radius: 2px;
}

textarea::placeholder { color: var(--muted-text); opacity: 0.8; }

.version-marker {
  color: var(--muted-text);
  font-size: 11px;
  text-align: right;
  margin-top: -4px;
  padding-bottom: 8px;
}

@media (max-width: 820px) {
  body { padding-bottom: 116px; }
  .header { align-items: flex-start; flex-direction: column; }
  .header-actions { align-items: flex-start; width: 100%; }
  .transliterator-controls { grid-template-columns: 1fr; align-items: stretch; }
  .button-group { grid-template-columns: repeat(2, minmax(0, 1fr)); min-width: 0; }
  .text-grid { grid-template-columns: 1fr; }
  .textarea-card { min-height: 380px; }
  textarea { min-height: 320px; }

  .control-button.compact {
    min-height: 40px;
    height: 40px;
    font-size: 14px;
  }

  .mobile-action-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: 1.25fr 1fr 1fr 0.85fr 0.85fr;
    gap: 8px;
    padding: 10px max(10px, env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-right));
    background: var(--card-background);
    border-top: 1px solid var(--grid);
    box-shadow: 0 -8px 22px rgba(0, 0, 0, 0.14);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  .mobile-action-bar .control-button {
    height: 46px;
    min-height: 46px;
    padding: 0 8px;
  }
}

@media (max-width: 520px) {
  body { padding-bottom: 132px; }
  .app { padding: 12px; }
  .title-block h1 { font-size: 21px; }
  .theme-controls { grid-template-columns: auto 1fr; width: 100%; }
  #themeSelect { width: 100%; }
  .button-group { grid-template-columns: 1fr; }

  .textarea-header {
    min-height: 38px;
  }

  .textarea-header-spacer {
    width: 68px;
    min-width: 68px;
    height: 40px;
  }

  .mobile-action-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mobile-action-bar #mobileDownloadTxtButton,
  .mobile-action-bar #mobileDownloadDocButton {
    grid-column: span 1;
  }
}


/* Phone portrait: make source work less top-heavy and keep the action buttons reachable. */
@media (max-width: 520px) and (orientation: portrait) {
  .instructions {
    display: none;
  }

  .textarea-card {
    min-height: auto;
  }

  .textarea-card textarea {
    min-height: 38vh;
  }

  .target-card textarea {
    min-height: 32vh;
  }

  .text-grid {
    gap: 12px;
  }
}

/* Phone landscape: keep the two text boxes side by side when there is enough width,
   while retaining the bottom Run/Copy/Clear bar for easy thumb access. */
@media (max-height: 520px) and (orientation: landscape) and (min-width: 700px) {
  .instructions {
    display: none;
  }

  .text-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .textarea-card {
    min-height: 250px;
  }

  textarea {
    min-height: 210px;
  }

  .app {
    padding-bottom: 12px;
  }
}


/* Portrait phones: keep the primary action obvious, with downloads available without scrolling. */
@media (max-width: 520px) and (orientation: portrait) {
  .mobile-action-bar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .mobile-action-bar #mobileRunButton {
    grid-column: span 2;
  }

  .mobile-action-bar #mobileCopyButton,
  .mobile-action-bar #mobileClearButton,
  .mobile-action-bar #mobileDownloadTxtButton,
  .mobile-action-bar #mobileDownloadDocButton {
    grid-column: span 1;
  }
}

/* Landscape phones: keep the bar to one compact row so it does not steal vertical space. */
@media (max-height: 520px) and (orientation: landscape) and (min-width: 700px) {
  body { padding-bottom: 70px; }
  .mobile-action-bar {
    grid-template-columns: 1.25fr 1fr 1fr 0.85fr 0.85fr;
  }
}

/* 2026-04-25 paste + mobile space fix
   Keep desktop unchanged, but prevent the phone layouts from reserving huge empty textarea space. */
.paste-button,
.copy-button {
  min-width: 76px;
}

@media (max-width: 820px) {
  body {
    padding-bottom: 92px;
  }

  .text-grid {
    align-items: start;
  }

  .textarea-card {
    min-height: 0;
  }

  .textarea-card textarea,
  textarea {
    flex: 0 0 auto;
    min-height: 0;
  }

  .mobile-action-bar {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 6px;
  }

  .mobile-action-bar .control-button {
    height: 44px;
    min-height: 44px;
    padding: 0 6px;
    font-size: 12px;
  }
}

/* Portrait phones: stack the boxes, but make each one practical instead of enormous. */
@media (max-width: 620px) and (orientation: portrait) {
  body {
    padding-bottom: 126px;
  }

  .app {
    padding: 12px;
  }

  .instructions {
    display: none;
  }

  .text-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .textarea-card {
    padding: 12px;
    min-height: 0;
  }

  .textarea-header {
    min-height: 38px;
    margin-bottom: 6px;
  }

  #inputText {
    height: 32vh;
    min-height: 170px;
    max-height: 260px;
  }

  #outputText {
    height: 28vh;
    min-height: 150px;
    max-height: 240px;
  }

  .mobile-action-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mobile-action-bar #mobileRunButton {
    grid-column: span 1;
  }
}

/* Landscape phones: preserve side-by-side work area, but use fixed compact heights. */
@media (max-height: 560px) and (orientation: landscape) and (min-width: 621px) {
  body {
    padding-bottom: 66px;
  }

  .app {
    padding-top: 10px;
    padding-bottom: 8px;
  }

  .header,
  .controls-card,
  .notes {
    margin-bottom: 10px;
  }

  .instructions {
    display: none;
  }

  .text-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 10px;
  }

  .textarea-card {
    padding: 12px;
    min-height: 0;
  }

  .textarea-header {
    min-height: 34px;
    margin-bottom: 6px;
  }

  #inputText,
  #outputText {
    height: 42vh;
    min-height: 145px;
    max-height: 230px;
  }

  .mobile-action-bar {
    grid-template-columns: 1.1fr 1fr 1fr 1fr .8fr .8fr;
  }
}

/* 2026-04-25 clipboard label/cache fix
   Long labels should fit naturally without changing the desktop layout. */
.paste-button,
.copy-button {
  min-width: 158px;
  white-space: nowrap;
}

.textarea-header {
  align-items: center;
}

@media (max-width: 820px) {
  .paste-button,
  .copy-button {
    min-width: 0;
    width: auto;
    max-width: 100%;
    white-space: normal;
    line-height: 1.15;
    padding-left: 10px;
    padding-right: 10px;
  }

  .textarea-header {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
  }

  .mobile-action-bar .control-button {
    white-space: normal;
    line-height: 1.05;
    font-size: 11px;
  }
}

@media (max-width: 620px) and (orientation: portrait) {
  body {
    padding-bottom: 152px;
  }

  .mobile-action-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-height: 560px) and (orientation: landscape) and (min-width: 621px) {
  .mobile-action-bar .control-button {
    font-size: 10px;
    padding-left: 4px;
    padding-right: 4px;
  }
}


/* 2026-04-25 mobile header space fix
   In mobile column layouts, do not let the desktop flex-basis become vertical height. */
@media (max-width: 820px) {
  .header {
    justify-content: flex-start;
    gap: 14px;
  }

  .title-block {
    flex: 0 1 auto;
    width: 100%;
    min-width: 0;
  }

  .header-actions {
    flex: 0 1 auto;
  }
}

@media (max-height: 560px) and (orientation: landscape) and (min-width: 621px) {
  .header {
    gap: 8px;
  }

  .title-block {
    flex: 0 1 auto;
  }
}

/* 2026-04-25: match calendar Theme control style */
:root {
  --header-control-width: 118px;
  --header-arrow-width: 28px;
  --header-control-height: 34px;
  --theme-font-size: 14px;
}

.theme-controls {
  grid-template-columns: auto var(--header-control-width);
}

.select-control-wrap {
  width: var(--header-control-width);
  height: var(--header-control-height);
  position: relative;
}

.select-control-wrap::after {
  content: "";
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-35%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--muted-text);
  pointer-events: none;
}

.theme-controls select,
#themeSelect {
  width: 100%;
  height: 100%;
  max-width: none;
  border: 1px solid rgb(170, 178, 188);
  background: var(--field-background);
  color: var(--header-text);
  font-family: inherit;
  font-size: var(--theme-font-size);
  font-weight: 600;
  line-height: var(--header-control-height);
  text-align: center;
  text-align-last: center;
  padding: 0 var(--header-arrow-width) 0 0;
  border-radius: 2px;
  -webkit-appearance: none;
  appearance: none;
  background-image: none;
}

@media (max-width: 850px) {
  .theme-controls {
    grid-template-columns: 76px minmax(0, 1fr);
  }
  .select-control-wrap {
    width: 100%;
    height: 40px;
  }
  .theme-controls select,
  #themeSelect {
    font-size: 16px;
    line-height: 40px;
  }
}

@media (max-width: 380px) {
  .theme-controls {
    grid-template-columns: 68px minmax(0, 1fr);
  }
}


/* 2026-04-25: horizontal mobile Theme control fix
   Keep desktop and portrait mobile unchanged, but make landscape-phone Theme compact like desktop. */
@media (orientation: landscape) and (max-height: 600px) and (max-width: 950px) {
  .header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
  }

  .title-block {
    flex: 1 1 auto;
    width: auto;
    min-width: 260px;
  }

  .header-actions {
    width: auto;
    flex: 0 0 auto;
    align-items: flex-end;
  }

  .theme-controls {
    width: auto;
    grid-template-columns: auto var(--header-control-width);
    gap: 8px;
    align-items: center;
  }

  .select-control-wrap {
    width: var(--header-control-width);
    height: var(--header-control-height);
  }

  .theme-controls select,
  #themeSelect {
    font-size: var(--theme-font-size);
    line-height: var(--header-control-height);
  }
}

/* 2026-04-25: make Mode select input text match the weight of the other controls */
#modeSelect {
  font-weight: 700;
}

#modeSelect option {
  font-weight: 700;
}