/* ==========================================================================
   OMNIVOX — design tokens
   Palette: void black core, bioluminescent teal (canonical), violet-magenta
   (expanded/AI), amber (low-confidence), warm off-white ink.
   Type: Space Grotesk (display), Inter (body/UI), JetBrains Mono (glyphs,
   pronunciation, data).
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --void:        #08070c;
  --void-2:      #0d0c15;
  --panel:       #12111c;
  --panel-2:     #181725;
  --line:        #26243a;
  --ink:         #e9e7f0;
  --ink-dim:     #a9a6bd;
  --ink-faint:   #6b687f;

  --canon:       #4ce0d2;   /* canonical teal */
  --canon-dim:   #2b6f68;
  --expand:      #b18cff;   /* expanded violet */
  --expand-dim:  #5e4c8f;
  --low:         #ffb454;   /* low-confidence amber */
  --low-dim:     #8a6329;
  --danger:      #ff6b6b;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --ease: cubic-bezier(.16,.84,.44,1);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  background: radial-gradient(ellipse 120% 80% at 50% -10%, #14121f 0%, var(--void) 55%);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

button{ font-family: inherit; }
:focus-visible{ outline: 2px solid var(--canon); outline-offset: 2px; }
::selection{ background: var(--expand-dim); color: #fff; }

/* faint starfield backdrop */
.starfield{
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(233,231,240,.5), transparent),
    radial-gradient(1px 1px at 78% 14%, rgba(233,231,240,.35), transparent),
    radial-gradient(1.5px 1.5px at 34% 68%, rgba(233,231,240,.4), transparent),
    radial-gradient(1px 1px at 88% 76%, rgba(233,231,240,.3), transparent),
    radial-gradient(1px 1px at 55% 88%, rgba(233,231,240,.3), transparent),
    radial-gradient(1.5px 1.5px at 6% 82%, rgba(233,231,240,.3), transparent);
  background-repeat: repeat;
  background-size: 400px 400px;
  opacity: .6;
}

/* ==========================================================================
   App shell
   ========================================================================== */

#app{
  max-width: 520px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: 88px; /* tab bar clearance */
  position: relative;
}

.topbar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 6px;
}

.brand{
  display: flex; align-items: baseline; gap: 8px;
}
.brand-mark{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--ink) 30%, var(--canon) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-sub{
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.icon-btn{
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-dim);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.icon-btn:hover{ border-color: var(--canon); color: var(--canon); }
.icon-btn svg{ width: 18px; height: 18px; }

.view{
  flex: 1;
  display: none;
  flex-direction: column;
  padding: 0 20px;
  animation: view-in .35s var(--ease);
}
.view.active{ display: flex; }

@keyframes view-in{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Language core — signature element
   ========================================================================== */

.core-stage{
  position: relative;
  width: 100%;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px 0 10px;
}

.core-ring{
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--line);
}
.core-ring.r1{ width: 160px; height: 160px; animation: spin 22s linear infinite; border-color: rgba(76,224,210,.25); border-style: dashed; }
.core-ring.r2{ width: 200px; height: 200px; animation: spin 34s linear infinite reverse; border-color: rgba(177,140,255,.2); }
.core-ring.r3{ width: 220px; height: 220px; animation: spin 48s linear infinite; border-color: rgba(255,180,84,.12); border-style: dotted; }

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

.core-orb{
  position: relative;
  width: 92px; height: 92px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #cdfdf6, var(--canon) 45%, #1c5f58 100%);
  box-shadow: 0 0 30px 6px rgba(76,224,210,.35), 0 0 60px 20px rgba(76,224,210,.12);
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.core-orb::after{
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent, rgba(255,255,255,.35), transparent 30%);
  animation: sheen 5s linear infinite;
  mix-blend-mode: overlay;
}
@keyframes sheen{ to{ transform: rotate(360deg); } }

.core-stage.listening .core-orb{
  animation: pulse-listen 1.1s ease-in-out infinite;
  box-shadow: 0 0 46px 10px rgba(76,224,210,.55), 0 0 90px 30px rgba(76,224,210,.22);
}
@keyframes pulse-listen{
  0%, 100%{ transform: scale(1); }
  50%{ transform: scale(1.08); }
}
.core-stage.thinking .core-orb{
  background: radial-gradient(circle at 35% 30%, #ece0ff, var(--expand) 45%, #3c2c63 100%);
  box-shadow: 0 0 34px 8px rgba(177,140,255,.45);
  animation: pulse-think 1.4s ease-in-out infinite;
}
@keyframes pulse-think{
  0%, 100%{ transform: scale(1) rotate(0deg); }
  50%{ transform: scale(.94) rotate(8deg); }
}

.core-glyphs{
  position: absolute; inset: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(233,231,240,.4);
  pointer-events: none;
}
.core-glyphs span{ position: absolute; }

/* waveform */
.waveform{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 30px;
  margin: 0 0 4px;
}
.waveform span{
  width: 3px;
  border-radius: 2px;
  background: var(--canon-dim);
  height: 6px;
  transition: height .12s ease, background .2s ease;
}
.core-stage.listening ~ .waveform span,
.waveform.active span{
  background: var(--canon);
  animation: wave 0.9s ease-in-out infinite;
}
.waveform span:nth-child(1){ animation-delay: -0.6s; }
.waveform span:nth-child(2){ animation-delay: -0.3s; }
.waveform span:nth-child(3){ animation-delay: 0s; }
.waveform span:nth-child(4){ animation-delay: -0.45s; }
.waveform span:nth-child(5){ animation-delay: -0.15s; }
.waveform span:nth-child(6){ animation-delay: -0.5s; }
.waveform span:nth-child(7){ animation-delay: -0.2s; }
@keyframes wave{
  0%, 100%{ height: 6px; }
  50%{ height: 26px; }
}

/* ==========================================================================
   Language selector bar
   ========================================================================== */

.lang-bar{
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 10px;
}
.lang-slot{
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background .2s var(--ease);
}
.lang-slot:hover{ background: var(--panel-2); }
.lang-slot .eyebrow{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .12em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.lang-slot .lang-name{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
}
.lang-slot .lang-glyph{
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-dim);
}
.swap-btn{
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--void-2);
  color: var(--canon);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform .25s var(--ease), border-color .2s var(--ease);
}
.swap-btn:hover{ border-color: var(--canon); transform: rotate(180deg); }
.swap-btn svg{ width: 16px; height: 16px; }

/* ==========================================================================
   Mode + roleplay selectors
   ========================================================================== */

.segmented{
  display: flex;
  gap: 6px;
  margin: 14px 0 4px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
}
.segmented button{
  flex: 1;
  border: none;
  background: transparent;
  color: var(--ink-dim);
  font-size: 12.5px;
  font-weight: 500;
  padding: 9px 6px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
  letter-spacing: .01em;
}
.segmented button.active{
  background: linear-gradient(120deg, var(--canon-dim), var(--expand-dim));
  color: var(--ink);
}

.chip-row{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 4px;
}
.chip{
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-dim);
  font-size: 12px;
  padding: 8px 13px;
  border-radius: 999px;
  cursor: pointer;
  transition: all .2s var(--ease);
  font-family: var(--font-body);
}
.chip.active{
  border-color: var(--expand);
  color: var(--ink);
  background: rgba(177,140,255,.12);
  box-shadow: 0 0 12px rgba(177,140,255,.25);
}

/* ==========================================================================
   Mic + input row
   ========================================================================== */

.input-zone{
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.mic-btn{
  width: 84px; height: 84px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  position: relative;
  background: radial-gradient(circle at 35% 30%, #1d3f3c, #0e1c1b);
  border: 1px solid var(--canon-dim);
  color: var(--canon);
  display: flex; align-items: center; justify-content: center;
  transition: transform .15s var(--ease), box-shadow .25s var(--ease);
  box-shadow: 0 0 0 0 rgba(76,224,210,0);
}
.mic-btn svg{ width: 30px; height: 30px; }
.mic-btn:hover{ transform: translateY(-2px); }
.mic-btn:active{ transform: translateY(0) scale(.96); }
.mic-btn.recording{
  background: radial-gradient(circle at 35% 30%, #3a1414, #1c0b0b);
  border-color: var(--danger);
  color: var(--danger);
  animation: mic-pulse 1s ease-in-out infinite;
}
@keyframes mic-pulse{
  0%, 100%{ box-shadow: 0 0 0 0 rgba(255,107,107,.4); }
  50%{ box-shadow: 0 0 0 14px rgba(255,107,107,0); }
}
.mic-hint{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-align: center;
}

.text-alt{
  width: 100%;
  display: flex;
  gap: 8px;
  align-items: flex-end;
}
.text-alt textarea{
  flex: 1;
  resize: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 14px;
  min-height: 46px;
  max-height: 120px;
  transition: border-color .2s var(--ease);
}
.text-alt textarea:focus{ border-color: var(--canon); }
.send-btn{
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  border: 1px solid var(--canon-dim);
  background: rgba(76,224,210,.1);
  color: var(--canon);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .2s var(--ease);
}
.send-btn:hover{ background: rgba(76,224,210,.2); }
.send-btn svg{ width: 18px; height: 18px; }
.send-btn:disabled{ opacity: .4; cursor: not-allowed; }

/* ==========================================================================
   Output card
   ========================================================================== */

.output{
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.out-card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  animation: card-in .4s var(--ease);
}
@keyframes card-in{
  from{ opacity: 0; transform: translateY(10px) scale(.98); }
  to{ opacity: 1; transform: translateY(0) scale(1); }
}

.out-source{
  font-size: 12.5px;
  color: var(--ink-faint);
  font-style: italic;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.out-translation{
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 8px;
}

.badge{
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid transparent;
  margin-bottom: 12px;
}
.badge.canonical{ background: rgba(76,224,210,.12); color: var(--canon); border-color: var(--canon-dim); }
.badge.expanded{ background: rgba(177,140,255,.14); color: var(--expand); border-color: var(--expand-dim); box-shadow: 0 0 10px rgba(177,140,255,.25); }
.badge.low_confidence{ background: rgba(255,180,84,.12); color: var(--low); border-color: var(--low-dim); }

.out-pron{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-dim);
  margin-bottom: 10px;
}
.out-pron b{ color: var(--ink-faint); font-weight: 500; text-transform: uppercase; font-size: 10px; letter-spacing: .06em; margin-right: 6px;}

.out-section{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.out-section .label{
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 5px;
}
.out-section p{ margin: 0; font-size: 13.5px; color: var(--ink-dim); line-height: 1.5; }

.expanded-term{
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: rgba(177,140,255,.06);
  border: 1px solid var(--expand-dim);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 8px;
  box-shadow: 0 0 14px rgba(177,140,255,.08);
}
.expanded-term .term{
  font-family: var(--font-mono);
  color: var(--expand);
  font-size: 13px;
}
.expanded-term .note{ font-size: 12px; color: var(--ink-dim); }

.out-actions{
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.pill-btn{
  flex: 1;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line);
  background: var(--void-2);
  color: var(--ink-dim);
  padding: 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 12.5px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.pill-btn:hover{ border-color: var(--canon); color: var(--canon); }
.pill-btn svg{ width: 15px; height: 15px; }

.empty-state{
  margin-top: 30px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
  padding: 30px 10px;
}
.empty-state .glyph-big{
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--ink-faint);
  opacity: .5;
  margin-bottom: 8px;
}

/* ==========================================================================
   History
   ========================================================================== */
.history-item{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color .2s var(--ease);
}
.history-item:hover{ border-color: var(--canon-dim); }
.history-item .hi-top{
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 10px; color: var(--ink-faint);
  margin-bottom: 5px; text-transform: uppercase; letter-spacing: .05em;
}
.history-item .hi-src{ font-size: 12.5px; color: var(--ink-dim); margin-bottom: 3px; }
.history-item .hi-out{ font-family: var(--font-display); font-size: 15px; font-weight: 600; }

/* ==========================================================================
   Settings view
   ========================================================================== */

.settings-group{
  margin-bottom: 22px;
}
.settings-group h3{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 10px;
}
.field{
  margin-bottom: 12px;
}
.field label{
  display: block;
  font-size: 12.5px;
  color: var(--ink-dim);
  margin-bottom: 6px;
}
.field input[type=text],
.field input[type=password],
.field select{
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  padding: 12px 14px;
  font-size: 14px;
  font-family: var(--font-mono);
  transition: border-color .2s var(--ease);
}
.field select{ font-family: var(--font-body); }
.field input:focus, .field select:focus{ border-color: var(--canon); }
.field-hint{
  font-size: 11.5px;
  color: var(--ink-faint);
  margin-top: 6px;
}
.field-hint.ok{ color: var(--canon); }

.field-row{ display:flex; gap: 8px; }
.field-row .field{ flex: 1; }

.key-row{ display: flex; gap: 8px; }
.key-row input{ flex: 1; }
.btn{
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 13.5px;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
  white-space: nowrap;
}
.btn:hover{ border-color: var(--canon); }
.btn.primary{
  background: linear-gradient(120deg, var(--canon-dim), var(--expand-dim));
  border-color: transparent;
  color: #fff;
  font-weight: 500;
}
.btn.danger{ color: var(--danger); border-color: var(--danger); background: rgba(255,107,107,.08); }
.btn.block{ width: 100%; }

.theme-swatches{ display: flex; gap: 10px; }
.swatch{
  width: 42px; height: 42px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color .2s var(--ease), transform .15s var(--ease);
}
.swatch:hover{ transform: scale(1.08); }
.swatch.active{ border-color: #fff; }
.swatch.void{ background: radial-gradient(circle at 35% 30%, #4ce0d2, #0e1c1b); }
.swatch.nebula{ background: radial-gradient(circle at 35% 30%, #b18cff, #241a3d); }
.swatch.solar{ background: radial-gradient(circle at 35% 30%, #ffb454, #3a260c); }

/* ==========================================================================
   Tab bar
   ========================================================================== */

.tabbar{
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  justify-content: center;
  padding: 14px 20px calc(14px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--void) 60%, transparent);
  pointer-events: none;
  z-index: 20;
}
.tabbar-inner{
  pointer-events: all;
  display: flex;
  gap: 4px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
}
.tab-btn{
  flex: 1;
  border: none;
  background: transparent;
  color: var(--ink-faint);
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 8px 4px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.tab-btn svg{ width: 19px; height: 19px; }
.tab-btn.active{ color: var(--canon); background: var(--panel-2); }

/* ==========================================================================
   Modal (setup gate)
   ========================================================================== */

.modal-backdrop{
  position: fixed; inset: 0;
  background: rgba(5,4,8,.75);
  backdrop-filter: blur(6px);
  display: flex; align-items: flex-end; justify-content: center;
  z-index: 50;
  animation: fade-in .25s var(--ease);
}
@keyframes fade-in{ from{ opacity: 0; } to{ opacity: 1; } }
.modal-backdrop.hidden{ display: none; }

.modal{
  width: 100%;
  max-width: 520px;
  background: var(--void-2);
  border: 1px solid var(--line);
  border-radius: 24px 24px 0 0;
  padding: 26px 22px calc(26px + env(safe-area-inset-bottom));
  animation: modal-up .35s var(--ease);
}
@keyframes modal-up{
  from{ transform: translateY(30px); opacity: 0; }
  to{ transform: translateY(0); opacity: 1; }
}
.modal h2{
  font-family: var(--font-display);
  margin: 0 0 6px;
  font-size: 20px;
}
.modal p.lead{
  color: var(--ink-dim);
  font-size: 13.5px;
  margin: 0 0 20px;
  line-height: 1.5;
}

/* ==========================================================================
   Toast
   ========================================================================== */
.toast{
  position: fixed;
  bottom: 96px; left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--panel-2);
  border: 1px solid var(--canon-dim);
  color: var(--ink);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 12.5px;
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.toast.show{ opacity: 1; transform: translateX(-50%) translateY(0); }

/* ==========================================================================
   Misc
   ========================================================================== */
.section-title{
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin: 4px 0 2px;
}
.section-lead{
  font-size: 12.5px;
  color: var(--ink-faint);
  margin: 0 0 14px;
}
.hidden{ display: none !important; }

/* scrollbar */
::-webkit-scrollbar{ width: 8px; }
::-webkit-scrollbar-thumb{ background: var(--line); border-radius: 4px; }

@media (min-width: 560px){
  #app{ padding-bottom: 96px; }
}