/* Hallmark · macrostructure: Workbench · nav: N9 edge-aligned minimal · footer: Ft2 + C4 control dock
 * theme: custom · vibe: "Cyprus conference, precise, calm, live" · paper: oklch(19% 0.030 245) · accent: oklch(70% 0.150 225)
 * display: Space Grotesk · body: IBM Plex Sans · axes: dark / geometric-sans / cool
 * studied: no · context: inferred from official IMH event identity · contrast: pass (40–41)
 * nav: N9 · footer: Ft2/C4 · slop: pass (42–45) · honest: pass (46) · chrome: pass (47)
 * tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) · v0.8.0
 */
/* Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V5 */

:root {
  --color-paper: oklch(19% 0.03 245);
  --color-paper-2: oklch(23% 0.035 245);
  --color-paper-3: oklch(27% 0.038 245);
  --color-ink: oklch(97% 0.008 238);
  --color-ink-2: oklch(79% 0.02 238);
  --color-rule: oklch(36% 0.035 245);
  --color-rule-2: oklch(29% 0.032 245);
  --color-muted: oklch(76% 0.022 240);
  --color-neutral: oklch(55% 0.025 242);
  --color-accent: oklch(70% 0.15 225);
  --color-accent-ink: oklch(18% 0.03 245);
  --color-focus: oklch(76% 0.19 225);
  --color-success: oklch(72% 0.15 153);
  --color-warning: oklch(80% 0.14 82);
  --color-danger: oklch(65% 0.19 25);
  --color-danger-ink: oklch(98% 0.006 25);
  --color-overlay: oklch(10% 0.02 245 / 0.72);
  --color-shadow: oklch(9% 0.025 245 / 0.48);
  --color-transparent: transparent;

  --font-display: 'Space Grotesk', 'Avenir Next', sans-serif;
  --font-body: 'IBM Plex Sans', 'Avenir Next', sans-serif;
  --font-mono: 'IBM Plex Sans', 'Avenir Next', sans-serif;

  --text-xs: 0.6875rem;
  --text-sm: 0.8125rem;
  --text-base: 1rem;
  --text-md: 1.25rem;
  --text-lg: 1.5625rem;
  --text-xl: 1.953rem;
  --text-stage: clamp(1.75rem, 7.8vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --radius-control: 0.375rem;
  --radius-panel: 0.75rem;
  --rule: 1px solid var(--color-rule);
  --shadow-panel: 0 1.5rem 4rem var(--color-shadow);
  --duration-fast: 160ms;
  --duration-panel: 320ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --bg-color: var(--color-paper);
  --text-color: var(--color-ink);
  --status-bg: var(--color-paper);
  --original-bg: var(--color-paper-2);
  --translation-bg: var(--color-paper);
  --translation2-bg: var(--color-paper-3);
  --original-color: var(--color-ink-2);
  --translation-color: var(--color-ink);
  --translation2-color: var(--color-accent);
  --settings-bg: var(--color-paper-2);
  --settings-text: var(--color-ink);
  --input-bg: var(--color-paper-3);
  --input-border: var(--color-rule);
  --input-text: var(--color-ink);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  overflow-x: clip;
}

html {
  background: var(--color-paper);
}

body.theme-light {
  --color-paper: oklch(98% 0.009 238);
  --color-paper-2: oklch(95% 0.012 238);
  --color-paper-3: oklch(91% 0.016 240);
  --color-ink: oklch(22% 0.035 245);
  --color-ink-2: oklch(35% 0.032 245);
  --color-rule: oklch(78% 0.022 240);
  --color-rule-2: oklch(88% 0.016 240);
  --color-muted: oklch(42% 0.025 242);
  --color-neutral: oklch(39% 0.03 243);
  --color-overlay: oklch(18% 0.025 245 / 0.42);
  --color-shadow: oklch(20% 0.03 245 / 0.18);
}

body {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  min-height: 100dvh;
  height: 100dvh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  transition:
    background var(--duration-panel) var(--ease-out),
    color var(--duration-panel) var(--ease-out);
}

button,
select,
input {
  font: inherit;
}

.hidden {
  display: none !important;
}

button,
select {
  min-height: 2.75rem;
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

button:active {
  transform: translateY(1px);
}

select:active,
input:active {
  border-color: var(--color-accent);
}

button:disabled,
select:disabled,
input:disabled {
  background: var(--color-paper-3);
  color: var(--color-muted);
  cursor: not-allowed;
  opacity: 0.55;
}

#statusBar {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  min-height: 5.75rem;
  padding: var(--space-3) var(--space-4);
  background: var(--color-paper);
  color: var(--color-ink);
  border-block-end: var(--rule);
  text-align: start;
}

#statusBar::after {
  content: '';
  position: absolute;
  inset-block-end: -1px;
  inset-inline-start: 0;
  width: clamp(4.5rem, 22vw, 10rem);
  height: 2px;
  background: var(--color-accent);
}

.event-brand {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-3);
}

.imh-wordmark {
  flex: 0 0 auto;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: clamp(2rem, 10vw, 3.2rem);
  font-weight: 700;
  line-height: 0.78;
  letter-spacing: -0.09em;
}

.event-brand__copy {
  display: none;
  min-width: 0;
  padding-inline-start: var(--space-3);
  border-inline-start: var(--rule);
}

@media (min-width: 22.5rem) {
  .event-brand__copy {
    display: block;
  }
}

.event-brand__eyebrow,
.stage-label,
.status-label,
.control-dock__label,
.settings-kicker {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.25;
  text-transform: uppercase;
}

.event-brand__title {
  display: block;
  margin-block-start: var(--space-1);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.event-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
}

.status-item--connection {
  display: none;
}

.status-item {
  align-items: flex-start;
}

.status-value {
  font-weight: 600;
}

#settingsBtn,
.close-btn {
  display: inline-grid;
  width: 2.75rem;
  min-width: 2.75rem;
  place-items: center;
  padding: 0;
  background: var(--color-transparent);
  color: var(--color-ink);
  border: var(--rule);
  border-radius: var(--radius-control);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  white-space: nowrap;
}

#settingsBtn::before {
  content: '••';
  letter-spacing: 0.14em;
  transform: rotate(90deg);
}

#settingsBtn .button-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

#mainContent {
  display: flex;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  padding-block-end: calc(5.25rem + env(safe-area-inset-bottom));
  background: var(--color-paper);
}

.text-display {
  position: relative;
  display: flex;
  flex: 1;
  min-width: 0;
  justify-content: flex-start;
  align-items: flex-start;
  padding: var(--space-5) var(--space-4);
  background: var(--color-paper);
  color: var(--color-ink);
  border-block-end: var(--rule);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.stage-copy {
  width: 100%;
  min-width: 0;
  max-width: 72rem;
  margin-inline: auto;
}

.stage-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-block-end: var(--space-3);
}

.stage-label::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-accent);
  border-radius: 50%;
}

.text-content {
  width: 100%;
  max-width: none;
  text-align: start;
  color: inherit;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, var(--font-size, 2.5em), 5.25rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
  overflow-wrap: anywhere;
  text-wrap: pretty;
}

#translationDisplay {
  order: 1;
  flex: 1.55;
  background: var(--color-paper);
  color: var(--color-ink);
}

#originalDisplay {
  order: 2;
  flex: 0.8;
  background: var(--color-paper-2);
  color: var(--color-ink-2);
}

#translation2Display {
  order: 3;
  background: var(--color-paper-3);
  color: var(--color-accent);
}

.connection-readout {
  position: fixed;
  inset-block-start: calc(env(safe-area-inset-top) + 4.45rem);
  inset-inline-end: calc(env(safe-area-inset-right) + 4.25rem);
  z-index: 20;
  max-width: 38vw;
  overflow: hidden;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.04em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.control-dock {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) max(var(--space-3), env(safe-area-inset-right))
    max(var(--space-2), env(safe-area-inset-bottom)) max(var(--space-3), env(safe-area-inset-left));
  background: var(--color-paper-2);
  color: var(--color-ink);
  border-block-start: var(--rule);
}

.quick-control,
#micBtn {
  display: flex;
  min-width: 0;
  min-height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-transparent);
  color: var(--color-ink);
  border: var(--rule);
  border-radius: var(--radius-control);
  cursor: pointer;
  white-space: nowrap;
}

.quick-control[aria-pressed='true'] {
  background: var(--color-paper-3);
  color: var(--color-ink);
  border-color: var(--color-accent);
}

.quick-control[aria-pressed='true'] .quick-control__title,
.quick-control[aria-pressed='true'] .quick-control__glyph {
  color: var(--color-accent);
}

.quick-control__copy {
  min-width: 0;
  text-align: start;
}

.quick-control__title {
  display: block;
  overflow: hidden;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quick-control__state {
  display: block;
  margin-block-start: var(--space-1);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.quick-control[aria-pressed='true'] .quick-control__state {
  color: var(--color-ink-2);
}

.quick-control__glyph {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-md);
}

#micBtn,
#audioVisualizer {
  display: none;
}

#controlsHint {
  position: fixed;
  inset-inline-start: 50%;
  inset-block-end: calc(5.75rem + env(safe-area-inset-bottom));
  z-index: 50;
  transform: translateX(-50%);
  max-width: calc(100% - 2rem);
  padding: var(--space-2) var(--space-3);
  background: var(--color-ink);
  color: var(--color-paper);
  border: var(--rule);
  border-radius: var(--radius-control);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.03em;
  opacity: 1;
  pointer-events: none;
  white-space: nowrap;
}

#settingsPanel,
#historyPanel {
  position: fixed;
  z-index: 1000;
  width: min(92%, 30rem);
  background: var(--color-paper-2);
  color: var(--color-ink);
  border-inline-start: var(--rule);
  box-shadow: var(--shadow-panel);
}

#settingsPanel {
  inset-block: 0;
  inset-inline-end: 0;
  height: 100dvh;
  padding: max(var(--space-5), env(safe-area-inset-top)) var(--space-5)
    max(var(--space-8), env(safe-area-inset-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  transition: transform var(--duration-panel) var(--ease-out);
}

#settingsPanel.open {
  transform: translateX(0);
}

.settings-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
  padding-block-end: var(--space-4);
  background: var(--color-paper-2);
  color: var(--color-ink);
  border-block-end: var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.settings-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.settings-kicker {
  display: block;
  margin-block-end: var(--space-1);
}

.setting-item,
.tts-section {
  margin: 0;
  padding-block: var(--space-4);
  border-block-end: var(--rule);
}

.setting-item label,
.tts-toggle-row label,
.tts-controls label,
.tts-section h3 {
  display: block;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.font-size-display {
  margin-block-start: var(--space-1);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-align: end;
}

.settings-help {
  margin-block-start: var(--space-2);
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.45;
}

.setting-item select,
.tts-controls select,
.setting-item input[type='range'] {
  width: 100%;
  min-height: 2.875rem;
  margin-block-start: var(--space-2);
  padding-inline: var(--space-3);
  background: var(--color-paper-3);
  color: var(--color-ink);
  border: var(--rule);
  border-radius: var(--radius-control);
}

.tts-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-block: var(--space-3);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 2.75rem;
  height: 1.5rem;
}

.toggle-switch input {
  width: 0;
  height: 0;
  opacity: 0;
}

.toggle-switch .slider {
  position: absolute;
  inset: 0;
  cursor: pointer;
  background: var(--color-neutral);
  border: var(--rule);
  border-radius: 1.5rem;
}

.toggle-switch .slider::before {
  position: absolute;
  content: '';
  width: 1rem;
  height: 1rem;
  inset-block-end: 0.1875rem;
  inset-inline-start: 0.1875rem;
  background: var(--color-ink);
}

.toggle-switch input:checked + .slider {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.toggle-switch input:checked + .slider::before {
  transform: translateX(1.2rem);
}

.tts-test-btn,
#showHistoryBtn,
#clearHistoryBtn,
#clearLocalHistoryBtn,
.history-toggle {
  width: 100%;
  min-height: 2.875rem;
  padding: var(--space-2) var(--space-3);
  background: var(--color-transparent);
  color: var(--color-ink);
  border: var(--rule);
  border-radius: var(--radius-control);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

#showHistoryBtn,
.tts-test-btn {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}

#clearHistoryBtn {
  color: var(--color-danger);
}

#clearLocalHistoryBtn {
  margin-block-start: var(--space-4);
  color: var(--color-danger);
}

#historyPanel {
  inset-inline: 0;
  inset-block-end: 0;
  width: 100%;
  height: min(78dvh, 42rem);
  padding: var(--space-5);
  border-block-start: var(--rule);
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform var(--duration-panel) var(--ease-out);
}

#historyPanel.open {
  transform: translateY(0);
}

.history-content {
  height: min(45dvh, 24rem);
  padding: var(--space-3);
  background: var(--color-paper-3);
  color: var(--color-ink);
  border: var(--rule);
  border-radius: var(--radius-control);
  overflow-y: auto;
  line-height: 1.5;
  white-space: pre-wrap;
}

.history-tabs {
  display: flex;
  gap: var(--space-2);
  margin-block: var(--space-4);
}

.history-toggle.active {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}

.status-connected #status {
  color: var(--color-success);
}

.status-connecting #status {
  color: var(--color-warning);
}

.status-disconnected #status {
  color: var(--color-danger);
}

@media (min-width: 40rem) {
  .text-content {
    max-width: 22ch;
  }

  #originalDisplay .text-content {
    font-size: clamp(1.05rem, calc(var(--font-size, 2.5em) * 0.55), 2rem);
    font-weight: 400;
    letter-spacing: -0.015em;
    line-height: 1.25;
  }

  #statusBar {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 6.5rem;
    padding-inline: clamp(var(--space-5), 5vw, var(--space-8));
  }

  .event-brand__eyebrow,
  .status-item--connection {
    display: flex;
  }

  .status-item--connection {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .connection-readout {
    inset-block-start: calc(env(safe-area-inset-top) + 5rem);
    inset-inline-end: calc(env(safe-area-inset-right) + 3rem);
  }

  #mainContent {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(16rem, 0.65fr);
    grid-template-rows: minmax(0, 1fr);
  }

  .text-display {
    padding: clamp(var(--space-5), 4vw, var(--space-8));
    border-block-end: 0;
  }

  #translationDisplay {
    grid-column: 1;
    grid-row: 1;
    border-inline-end: var(--rule);
  }

  #originalDisplay {
    grid-column: 2;
    grid-row: 1;
  }

  #translation2Display:not(.hidden) {
    grid-column: 2;
    grid-row: 1;
  }

  .control-dock {
    inset-inline-start: auto;
    width: min(34rem, calc(100% - 2rem));
    margin-inline-end: max(var(--space-4), env(safe-area-inset-right));
    margin-block-end: max(var(--space-4), env(safe-area-inset-bottom));
    border: var(--rule);
    border-radius: var(--radius-panel);
    box-shadow: 0 0.75rem 2rem var(--color-shadow);
  }

  #controlsHint {
    inset-block-end: calc(7rem + env(safe-area-inset-bottom));
  }
}

@media (hover: hover) and (pointer: fine) {
  #settingsBtn:hover,
  .close-btn:hover,
  .quick-control:hover,
  .history-toggle:hover {
    border-color: var(--color-accent);
  }
}

@media (pointer: coarse) {
  button,
  select {
    min-height: 3rem;
  }
}

@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;
  }
}