/* Every color in the app resolves through one of these tokens, so switching
   themes is purely a matter of swapping the html[data-theme="dark"] block
   below — no component needs its own dark-mode rules. */
:root {
  --bg: #f4f7f6;
  --panel: #ffffff;
  --ink: #16241f;
  --muted: #5c6f6a;
  --brand: #0d9488;
  --brand-dark: #0f766e;
  --brand-light: #ccfbf1;
  /* Text/icons sitting on top of a --brand fill. */
  --on-brand: #ffffff;
  --border: #dde6e3;
  --dropzone-border: #c9d6d2;
  --field-bg: #ffffff;
  --overlay: rgba(22, 36, 31, 0.35);
  --overlay-strong: rgba(22, 36, 31, 0.8);
  --disabled-bg: #d7e2e0;
  --disabled-text: #8ea19d;
  --menu-disabled-text: #b7bcc9;
  --menu-disabled-icon: #cdd1dc;
  --danger: #dc2626;
  --danger-text: #991b1b;
  --danger-bg: #fef2f2;
  --success: #059669;
  --success-text: #065f46;
  --success-bg: #ecfdf5;
  --toggle-track: #dbe1f5;
  --toggle-thumb: #38bdf8;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(15, 30, 27, 0.06), 0 1px 3px rgba(15, 30, 27, 0.08);
  --shadow-md: 0 6px 16px rgba(15, 30, 27, 0.1), 0 2px 6px rgba(15, 30, 27, 0.06);
  --shadow-drawer: 6px 0 24px rgba(22, 36, 31, 0.18);
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

/* Dark theme. The accent inverts — --brand-dark is the *lighter* teal here,
   since it's used for text and icons that need to lift off dark surfaces. */
html[data-theme="dark"] {
  --bg: #0b1120;
  --panel: #131c2e;
  --ink: #e7eaf3;
  --muted: #8b93a7;
  --brand: #2dd4bf;
  --brand-dark: #5eead4;
  --brand-light: #134e4a;
  --on-brand: #06231f;
  --border: #263049;
  --dropzone-border: #33405e;
  --field-bg: #0f1728;
  --overlay: rgba(3, 7, 18, 0.6);
  --overlay-strong: rgba(3, 7, 18, 0.85);
  --disabled-bg: #1c2740;
  --disabled-text: #5a6480;
  --menu-disabled-text: #5a6480;
  --menu-disabled-icon: #4a5470;
  --danger: #f87171;
  --danger-text: #fca5a5;
  --danger-bg: #2a1416;
  --success: #34d399;
  --success-text: #6ee7b7;
  --success-bg: #0d2a22;
  --toggle-track: #1a2540;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.45), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-drawer: 6px 0 24px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

/* The hidden attribute must always win, even over class rules that set a
   display value (e.g. .lightbox { display: flex }). Without this, a `hidden`
   overlay stays visible and covers the page. */
[hidden] {
  display: none !important;
}

/* Guards against any accidental horizontal overflow. Without this, even a
   sliver of overflow lets iOS Safari's elastic bounce drag the whole page —
   fixed-position elements like the header buttons and theme toggle included —
   sideways during a scroll gesture, which reads as controls drifting toward
   the edge. Must be on html specifically: browsers special-case the root
   element so this doesn't change what position:fixed is measured against
   (unlike setting it on an arbitrary descendant, which would). */
html {
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
  overflow-x: hidden;
  transition: background 0.25s ease, color 0.25s ease;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
}

.site-header {
  position: relative;
  padding: 1.75rem 1.5rem 0.5rem;
  text-align: center;
}

.header-btns {
  position: fixed;
  left: 1.5rem;
  top: 1.5rem;
  z-index: 15;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.header-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--brand-dark);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.header-icon-btn:hover {
  background: var(--brand-light);
  border-color: var(--brand);
}

.header-icon-btn svg {
  width: 20px;
  height: 20px;
}

.header-icon-btn.newchat {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
}

.header-icon-btn.newchat:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

/* Theme toggle — mirrors .header-btns on the opposite side of the header. */
.theme-toggle {
  position: fixed;
  right: 1.5rem;
  top: 1.5rem;
  z-index: 15;
  width: 64px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--toggle-track);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 3px;
  transition: background 0.25s ease, border-color 0.25s ease;
}

/* Both icons sit in the track; the thumb slides over whichever is inactive. */
.toggle-icons {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  pointer-events: none;
}

.toggle-icons svg {
  width: 13px;
  height: 13px;
}

.toggle-sun {
  stroke: #f5b90d;
  fill: none;
}

.toggle-moon {
  fill: #8ea3c9;
}

.toggle-thumb {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: var(--toggle-thumb);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(0);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html[data-theme="dark"] .toggle-thumb {
  transform: translateX(30px);
}

.toggle-thumb svg {
  width: 15px;
  height: 15px;
}

/* The thumb carries the icon for the mode you're currently in. */
.thumb-moon {
  display: none;
}

html[data-theme="dark"] .thumb-sun {
  display: none;
}

html[data-theme="dark"] .thumb-moon {
  display: block;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--brand);
  color: var(--on-brand);
  box-shadow: var(--shadow-sm);
}

.brand-mark svg {
  width: 20px;
  height: 20px;
}

.brand h1 {
  margin: 0;
  font-weight: 700;
  color: var(--brand-dark);
}

.tagline {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.stepper {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0.5rem;
  max-width: 1100px;
  margin: 1.25rem auto 0.5rem;
  padding: 0 1.5rem;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
}

.step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  border: 2px solid var(--border);
  color: var(--muted);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.step-circle svg {
  width: 18px;
  height: 18px;
}

.step-label {
  font-size: 0.8rem;
  font-weight: 600;
}

.step.is-active .step-circle {
  border-color: var(--brand);
  background: var(--brand);
  color: var(--on-brand);
  box-shadow: var(--shadow-md);
}

.step.is-active .step-label {
  color: var(--brand-dark);
}

.step.is-complete .step-circle {
  border-color: var(--brand);
  background: var(--brand-light);
  color: var(--brand-dark);
}

.step.is-complete .step-label {
  color: var(--ink);
}

.step-line {
  width: 48px;
  height: 2px;
  background: var(--border);
  margin-top: 19px;
}

.layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.25rem;
  max-width: 1100px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
}

.output-panel {
  grid-column: 1 / -1;
}

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem;
  /* Grid items default to min-width:auto, so the 1fr track sizes itself to fit
     whichever child's content refuses to shrink (a <select>'s widest option,
     unwrapped button text) — even past the grid container's own width. This
     was the real cause of horizontal overflow on phones: the whole page
     scrolled sideways because one of these sections wouldn't shrink below its
     content's natural width. min-width:0 lets the track shrink to fit the
     container instead, so overflow gets handled inside each section (text
     wraps, a <select> clips) rather than blowing out the whole layout. */
  min-width: 0;
}

h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.input-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.tab-btn {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  color: var(--muted);
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.tab-btn.active {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
  box-shadow: var(--shadow-sm);
}

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

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 120px;
  border: 2px dashed var(--dropzone-border);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  transition: border-color 0.15s, background 0.15s;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--brand);
  background: var(--brand-light);
}

.dropzone-icon {
  display: inline-flex;
  color: var(--brand);
}

.dropzone-icon svg {
  width: 28px;
  height: 28px;
}

.pages-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.pages-row:empty {
  margin-top: 0;
}

.page-chip {
  position: relative;
  width: 84px;
}

.page-thumb {
  display: block;
  width: 84px;
  height: 108px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: zoom-in;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.page-thumb:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

.page-remove {
  position: absolute;
  top: -7px;
  right: -7px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--danger);
  padding: 0;
}

.page-remove svg {
  width: 11px;
  height: 11px;
}

.page-label {
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.reorder-btns {
  position: absolute;
  bottom: 22px;
  right: -3px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.reorder-btns button {
  width: 18px;
  height: 16px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  color: var(--muted);
  box-shadow: var(--shadow-sm);
}

.reorder-btns button:hover:not(:disabled) {
  border-color: var(--brand);
  color: var(--brand-dark);
}

.reorder-btns button svg {
  width: 10px;
  height: 10px;
}

.reorder-btns button:disabled {
  cursor: not-allowed;
  background: var(--bg);
  opacity: 0.45;
}

.lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: var(--overlay-strong);
  z-index: 30;
  cursor: zoom-out;
}

.lightbox img {
  max-width: 95vw;
  max-height: 92vh;
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

textarea,
select {
  font-family: inherit;
}

textarea {
  width: 100%;
  font-size: 0.95rem;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--field-bg);
  color: var(--ink);
  resize: vertical;
}

.field {
  margin-bottom: 1rem;
}

.field label,
.field-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.3rem;
  font-weight: 600;
  font-size: 0.9rem;
}

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

.field select {
  width: 100%;
  padding: 0.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--field-bg);
  color: var(--ink);
  font-size: 0.95rem;
}

.btn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Toggle buttons carry all their icons at once and swap by class. Only the
   idle icon shows by default — without hiding .icon-active here, a button
   renders both its idle and active icons side by side. */
.icon-loading,
.icon-active,
.is-playing .icon-idle {
  display: none;
}

.is-loading .icon-idle {
  display: none;
}

.is-loading .icon-loading {
  display: inline-flex;
}

.is-playing .icon-active {
  display: inline-flex;
}

.spin {
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius);
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  font-family: inherit;
  transition: background 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease,
    color 0.15s ease, transform 0.1s ease;
}

.primary-btn {
  background: var(--brand);
  color: var(--on-brand);
  width: 100%;
  box-shadow: var(--shadow-md);
}

.primary-btn:disabled {
  background: var(--disabled-bg);
  color: var(--disabled-text);
  box-shadow: none;
  cursor: not-allowed;
}

.primary-btn:not(:disabled):hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}

.secondary-btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--ink);
}

.secondary-btn:disabled {
  color: var(--muted);
  background: var(--bg);
  cursor: not-allowed;
}

.secondary-btn:not(:disabled):hover {
  border-color: var(--brand);
  color: var(--brand-dark);
  box-shadow: var(--shadow-sm);
}

.secondary-btn.is-playing {
  background: var(--brand-light);
  border-color: var(--brand);
  color: var(--brand-dark);
}

.read-aloud-btn.is-playing {
  background: var(--brand-dark);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-header h2 {
  margin: 0;
}

.gear-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--brand-dark);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.gear-btn:hover {
  background: var(--brand-light);
}

.gear-btn.is-open {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
}

.gear-btn .btn-icon {
  width: 19px;
  height: 19px;
}

.gear-wrap {
  position: relative;
}

.playback-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
}

.read-aloud-btn {
  width: auto;
  border-radius: 999px;
  padding: 0.75rem 1.4rem;
}

.pause-resume-btn,
.download-btn {
  border-radius: 999px;
  padding: 0.75rem 1.4rem;
}

.popover {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  width: 280px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 1.1rem 1.25rem 1.25rem;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 10;
}

.popover.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.popover-title {
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.popover .field {
  margin-bottom: 0.85rem;
}

.preview-btn {
  width: 100%;
  background: var(--panel);
  border: 1.5px solid var(--brand);
  color: var(--brand-dark);
}

.preview-btn:not(:disabled):hover {
  background: var(--brand-light);
  border-color: var(--brand);
  color: var(--brand-dark);
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0.5rem 0 0;
}

.output-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.output-col h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.output-text {
  min-height: 100px;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  white-space: pre-wrap;
  font-size: 0.95rem;
}

.output-text.placeholder {
  color: var(--muted);
  font-style: italic;
}

.output-text.fade-in {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quiz-panel {
  grid-column: 1 / -1;
}

.quiz-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.quiz-toggle-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--brand-dark);
}

.quiz-toggle-label .btn-icon {
  color: var(--brand);
}

.chevron {
  width: 16px;
  height: 16px;
  color: var(--muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.chevron.open {
  transform: rotate(180deg);
}

.quiz-sub {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0.3rem 0 0 1.75rem;
}

.quiz-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.quiz-body.open {
  max-height: 900px;
  margin-top: 1.1rem;
}

.quiz-question {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 1rem;
}

.quiz-question:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.quiz-q {
  font-weight: 600;
  font-size: 0.9rem;
  margin: 0 0 0.6rem;
}

.quiz-choice {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  cursor: pointer;
  background: var(--bg);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.quiz-choice:hover {
  border-color: var(--brand);
}

.quiz-choice.correct {
  border-color: var(--success);
  background: var(--success-bg);
  color: var(--success-text);
}

.quiz-choice.incorrect {
  border-color: var(--danger);
  background: var(--danger-bg);
  color: var(--danger-text);
}

.quiz-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--muted);
  flex-shrink: 0;
}

.quiz-choice.correct .quiz-dot {
  background: var(--success);
  border-color: var(--success);
}

.quiz-choice.incorrect .quiz-dot {
  background: var(--danger);
  border-color: var(--danger);
}

.quiz-choice.disabled {
  cursor: default;
}

.quiz-score-row {
  margin-top: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
}

.quiz-score {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--brand-dark);
}

.quiz-retry-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: underline;
}

.quiz-retry-link:hover {
  color: var(--brand-dark);
}

.quiz-loading,
.quiz-error {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.5rem 0;
}

.quiz-error {
  color: var(--danger-text);
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 20;
}

.drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.history-drawer {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 330px;
  max-width: 85vw;
  background: var(--panel);
  box-shadow: var(--shadow-drawer);
  transform: translateX(-100%);
  transition: transform 0.25s ease;
  z-index: 21;
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
}

.history-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}

.drawer-header h3 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--brand-dark);
}

.drawer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: none;
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.drawer-close:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.drawer-close svg {
  width: 15px;
  height: 15px;
}

.project-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
  /* Anchors the absolutely-positioned delete-confirm popover. */
  position: relative;
}

/* Delete-project confirmation. Positioned from JS (left/top), which measures
   the chip it belongs to. */
.project-confirm {
  position: absolute;
  z-index: 23;
  width: 172px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 0.6rem 0.7rem;
}

.project-confirm-msg {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  /* Project names are user-supplied and can be long with no spaces. */
  overflow-wrap: anywhere;
}

.project-confirm-note {
  margin: 0.2rem 0 0;
  font-size: 0.68rem;
  color: var(--muted);
}

.project-confirm-row {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.project-confirm-btn {
  flex: 1;
  padding: 0.3rem 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.project-confirm-btn:hover {
  border-color: var(--brand);
  color: var(--brand-dark);
}

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

.project-confirm-btn.danger:hover {
  background: var(--danger-bg);
  border-color: var(--danger);
  color: var(--danger);
}

.project-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.project-chip:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.project-chip.active {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
}

.project-chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  line-height: 1;
  opacity: 0.65;
}

.project-chip-remove:hover {
  opacity: 1;
}

.project-chip-add {
  color: var(--brand-dark);
  border-style: dashed;
  background: none;
}

.project-name-input {
  width: 130px;
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--brand);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  background: var(--panel);
}

.project-name-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--brand-light);
}

.drawer-list {
  flex: 1;
  overflow-y: auto;
  margin: 0 -0.25rem;
}

.history-item {
  position: relative;
  display: flex;
  gap: 0.75rem;
  width: 100%;
  padding: 0.7rem 0.75rem;
  margin-bottom: 0.25rem;
  border: none;
  border-radius: 14px;
  background: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background 0.15s ease;
}

.history-item:hover {
  background: var(--bg);
}

.history-item:hover .history-kebab,
.history-item.menu-open .history-kebab {
  opacity: 1;
}

.history-item.menu-open .history-kebab {
  background: var(--brand-light);
}

.history-text {
  min-width: 0;
  flex: 1;
}

.history-snippet {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  /* At rest: silently clip (no dots). On hover: show the ellipsis without
     changing the clip width, so nothing reflows between states. */
  text-overflow: clip;
}

.history-item:hover .history-snippet {
  text-overflow: ellipsis;
}

.history-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

.history-chip {
  font-size: 0.66rem;
  font-weight: 600;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  white-space: nowrap;
}

.history-chip.lang {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.history-chip.project {
  background: var(--brand);
  color: var(--on-brand);
}

.history-title-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  /* Reserve room for the absolutely-positioned kebab so the title (and its
     hover ellipsis) always clips before the ⋯ button, never under it. */
  padding-right: 1.75rem;
}

.history-rename-input {
  width: 100%;
  margin: 0;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--brand);
  border-radius: 6px;
  padding: 1px 6px;
  background: var(--panel);
}

.history-rename-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--brand-light);
}

.history-kebab {
  position: absolute;
  top: 0.55rem;
  right: 0.5rem;
  opacity: 0;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.12s ease, background 0.12s ease;
}

.history-kebab:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.history-kebab svg {
  width: 16px;
  height: 16px;
}

.history-menu {
  position: absolute;
  top: 2.4rem;
  right: 0.6rem;
  width: 190px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 6px;
  z-index: 22;
  display: none;
}

.history-menu.open {
  display: block;
}

.history-menu-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: none;
  background: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.history-menu-option:hover {
  background: var(--bg);
}

.history-menu-icon {
  display: inline-flex;
  flex-shrink: 0;
  color: var(--muted);
}

.history-menu-icon svg {
  width: 15px;
  height: 15px;
}

.history-menu-option.danger {
  color: var(--danger);
}

.history-menu-option.danger .history-menu-icon {
  color: var(--danger);
}

.history-menu-option.disabled {
  color: var(--menu-disabled-text);
  cursor: default;
}

.history-menu-option.disabled .history-menu-icon {
  color: var(--menu-disabled-icon);
}

.history-menu-option.disabled:hover {
  background: none;
}

.history-soon {
  margin-left: auto;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--muted);
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 999px;
}

.history-project-list {
  display: none;
  flex-direction: column;
  margin: 2px 0 6px;
  padding-left: 8px;
  border-left: 2px solid var(--border);
}

.history-project-list.open {
  display: flex;
}

.history-project-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: none;
  background: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.history-project-row .history-menu-icon {
  min-width: 15px;
}

.history-project-row:hover {
  background: var(--bg);
}

.history-project-row.active {
  color: var(--brand-dark);
  font-weight: 600;
}

.history-project-new {
  color: var(--brand-dark);
}

.history-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 5px 4px;
}

.history-empty {
  color: var(--muted);
  font-size: 0.85rem;
  padding: 0.75rem;
}

.drawer-note {
  color: var(--muted);
  font-size: 0.72rem;
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
}

.status-message {
  text-align: center;
  min-height: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  text-align: center;
  padding: 1rem 1.5rem 2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

@media (max-width: 800px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .output-columns {
    grid-template-columns: 1fr;
  }
  .stepper {
    gap: 0.25rem;
  }
  .step-line {
    width: 24px;
  }
}

/* Phones: enlarge touch targets — the page × remove button, the page reorder
   arrows, and the history kebab (which is always shown here since touch has no
   hover). */
@media (max-width: 640px) {
  /* The fixed header controls (buttons top-left, theme toggle top-right) sit in
     the same horizontal band as the centered title on desktop, where there's
     room on both sides. On a phone there isn't, so the tagline ran under the
     buttons. Lay the two left buttons out in a row (shorter), then drop the
     centered title/tagline below the whole control band — that frees the full
     width for the centered text, so nothing overlaps at any phone size. */
  .header-btns {
    flex-direction: row;
  }
  .site-header {
    padding-top: 4.5rem;
  }
  /* A bit more clearance from the edge than the 1.5rem used elsewhere. */
  .theme-toggle {
    right: 1.75rem;
  }

  .page-remove {
    width: 30px;
    height: 30px;
    top: -9px;
    right: -9px;
  }
  .page-remove svg {
    width: 15px;
    height: 15px;
  }

  .reorder-btns {
    gap: 4px;
    bottom: 26px;
    right: -5px;
  }
  .reorder-btns button {
    width: 28px;
    height: 24px;
  }
  .reorder-btns button svg {
    width: 15px;
    height: 15px;
  }

  .history-kebab {
    opacity: 1;
    width: 36px;
    height: 36px;
    top: 0.4rem;
    right: 0.4rem;
  }
  .history-kebab svg {
    width: 22px;
    height: 22px;
  }
  /* Reserve more room so the larger kebab never overlaps the title. */
  .history-title-row {
    padding-right: 2.4rem;
  }
}