/* Andy — Second Brain. Conversational surface. */

:root {
  --bg-0: #050810;
  --bg-1: #0a1020;
  --fg: #d7e3f4;
  --fg-dim: #6f86a8;
  --andy-cyan: #5cc8ff;
  --andy-violet: #a48cff;
  --andy-glow: rgba(92, 200, 255, 0.6);
  --user-tint: #9fffbe;
  --error: #ff7a7a;
  --border: rgba(159, 191, 255, 0.08);
  --surface: rgba(15, 26, 48, 0.55);
  --surface-strong: rgba(15, 26, 48, 0.85);
  --font-display: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: radial-gradient(
      ellipse at top,
      rgba(92, 200, 255, 0.08),
      transparent 60%
    ),
    radial-gradient(ellipse at bottom, rgba(164, 140, 255, 0.06), transparent 60%),
    var(--bg-0);
  color: var(--fg);
  font-family: var(--font-display);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  /* Subtle scanlines for the Jarvis vibe — keep them barely visible. */
  content: '';
  position: fixed;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.01) 0px,
    rgba(255, 255, 255, 0.01) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 1;
}

.back-link {
  position: fixed;
  top: 24px;
  left: 24px;
  color: var(--fg-dim);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  backdrop-filter: blur(8px);
  z-index: 10;
  transition: color 0.2s, border-color 0.2s;
}
.back-link:hover {
  color: var(--andy-cyan);
  border-color: rgba(92, 200, 255, 0.4);
}

.header-toggles {
  position: fixed;
  top: 24px;
  right: 24px;
  display: flex;
  gap: 10px;
  z-index: 10;
}
.header-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--fg-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.header-toggle:hover {
  border-color: rgba(92, 200, 255, 0.4);
}
.header-toggle-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--andy-cyan);
  box-shadow: 0 0 8px var(--andy-glow);
  transition: background 0.2s, box-shadow 0.2s;
}
.header-toggle[aria-pressed='true'] {
  color: var(--andy-cyan);
}
.header-toggle[aria-pressed='false'] .header-toggle-dot {
  background: var(--fg-dim);
  box-shadow: none;
}
/* Hands-free, when armed, gets a soft breathing glow to make it obvious
   the mic is hot. */
#handsfree-toggle[aria-pressed='true'] {
  color: var(--user-tint);
  border-color: rgba(159, 255, 190, 0.45);
  box-shadow: 0 0 18px rgba(159, 255, 190, 0.18);
}
#handsfree-toggle[aria-pressed='true'] .header-toggle-dot {
  background: var(--user-tint);
  box-shadow: 0 0 10px rgba(159, 255, 190, 0.7);
  animation: pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(1.15); }
}

/* Realtime toggle — visually distinct because it's premium ($3/day cap),
   beta (may misbehave), and has substantially different UX (sub-second
   bidirectional voice with server-side VAD). When armed, breathes amber
   instead of cyan to signal "different mode". */
#realtime-toggle[aria-pressed='true'] {
  color: #ffcc66;
  border-color: rgba(255, 204, 102, 0.45);
  box-shadow: 0 0 18px rgba(255, 204, 102, 0.22);
  background: linear-gradient(180deg, rgba(255, 204, 102, 0.06), transparent);
}
#realtime-toggle[aria-pressed='true'] .header-toggle-dot {
  background: #ffcc66;
  box-shadow: 0 0 10px rgba(255, 204, 102, 0.8);
  animation: pulseDot 1.6s ease-in-out infinite;
}
#realtime-toggle.cost-warn {
  color: #ff7a00;
  border-color: rgba(255, 122, 0, 0.5);
  animation: realtimeCostWarn 1.2s ease-in-out infinite;
}
@keyframes realtimeCostWarn {
  0%, 100% { box-shadow: 0 0 14px rgba(255, 122, 0, 0.3); }
  50%      { box-shadow: 0 0 22px rgba(255, 122, 0, 0.6); }
}

.stage {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  height: 100vh;
  max-width: 880px;
  margin: 0 auto;
  padding: 24px;
  gap: 24px;
  align-items: center;
}

/* Ambient nebula canvas (legacy orb canvas, faded as backdrop) */
.orb-canvas-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.18;
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}

.orb-state-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* =============================================================== */
/* Android HUD — central avatar with rotating ring HUD              */
/* =============================================================== */

.android-hud {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(72vmin, 540px);
  height: min(72vmin, 540px);
  margin: 0 auto;
  --avatar-glow: 0.5; /* 0..1, driven by audio reactivity (JS) */
  --hud-pulse: 0;     /* 0..1, transient pulse on events */
  z-index: 1;
}

.hud-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hud-ring-outer { animation: hudSpinSlow 60s linear infinite; }
.hud-ring-mid   { animation: hudSpinFast 28s linear infinite reverse; }
.hud-ring-inner { animation: hudSpinSlow 90s linear infinite; }

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

.hud-scanline {
  transform-origin: 200px 200px;
  animation: hudScan 3.6s ease-in-out infinite;
}
@keyframes hudScan {
  0%, 100% { transform: rotate(-12deg); opacity: 0.25; }
  50%      { transform: rotate(12deg);  opacity: 0.7; }
}

.hud-brackets path { animation: hudBracketPulse 2.4s ease-in-out infinite; }
@keyframes hudBracketPulse {
  0%, 100% { stroke-opacity: 0.55; }
  50%      { stroke-opacity: 1; }
}

/* Side accent panels (red strip, like reference) */
.hud-accent {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 100px;
  border-radius: 4px;
  background: linear-gradient(180deg, transparent, #ff4c4c 35%, #ff4c4c 65%, transparent);
  opacity: 0.55;
  filter: blur(0.5px);
  box-shadow: 0 0 14px #ff4c4c66, 0 0 28px #ff4c4c33;
  transform: translateY(-50%);
}
.hud-accent-left  { left: -8px; }
.hud-accent-right { right: -8px; }

/* Avatar SVG (sits above HUD rings) */
.android {
  position: relative;
  width: 56%;
  height: auto;
  z-index: 2;
  filter:
    drop-shadow(0 0 calc(14px + 18px * var(--avatar-glow)) rgba(120, 200, 255, calc(0.4 + 0.4 * var(--avatar-glow))))
    drop-shadow(0 0 calc(28px + 36px * var(--avatar-glow)) rgba(91, 198, 255, calc(0.2 + 0.3 * var(--avatar-glow))));
  transition: filter 0.18s ease;
}

/* Visor brightness reacts to audio */
.android-visor {
  opacity: calc(0.78 + 0.22 * var(--avatar-glow));
  transition: opacity 0.18s ease;
}
.android-eye {
  transform-origin: center;
  animation: eyeBlink 6.5s ease-in-out infinite;
  opacity: calc(0.85 + 0.15 * var(--avatar-glow));
}
.android-eye-right { animation-delay: 0.05s; }
@keyframes eyeBlink {
  0%, 92%, 100% { transform: scaleY(1); }
  94%, 98%      { transform: scaleY(0.12); }
}

.android-third-eye {
  animation: thirdEyePulse 2.2s ease-in-out infinite;
}
@keyframes thirdEyePulse {
  0%, 100% { opacity: 0.5; r: 2.5; }
  50%      { opacity: 1;   r: 3.6; }
}

/* Mouth bars react to audio: each bar scales-Y by amount */
.android-mouth rect {
  transform-origin: center bottom;
  transform: scaleY(calc(0.35 + 1.6 * var(--avatar-glow)));
  transition: transform 0.08s ease;
}

/* State-driven color tint */
body.state-listening .android-visor { fill: url(#visorGrad); filter: url(#strongGlow) brightness(1.15); }
body.state-thinking  .android        { filter:
  drop-shadow(0 0 22px rgba(196, 125, 224, 0.55))
  drop-shadow(0 0 44px rgba(196, 125, 224, 0.3)); }
body.state-thinking  .android-third-eye { fill: #e1c2ff; }
body.state-speaking  .android        { filter:
  drop-shadow(0 0 calc(18px + 24px * var(--avatar-glow)) rgba(230, 193, 74, calc(0.5 + 0.4 * var(--avatar-glow))))
  drop-shadow(0 0 calc(40px + 50px * var(--avatar-glow)) rgba(196, 125, 224, calc(0.25 + 0.35 * var(--avatar-glow)))); }
body.state-error     .android        { filter: drop-shadow(0 0 22px rgba(255, 76, 76, 0.55)); }

/* Hidden conversation (kept in DOM for addMessage compat) */
.conversation-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ---- Conversation ---- */
.conversation {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, transparent 100%);
  backdrop-filter: blur(12px);
}
.conversation-inner {
  height: 100%;
  overflow-y: auto;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
}
.conversation-inner::-webkit-scrollbar {
  width: 6px;
}
.conversation-inner::-webkit-scrollbar-thumb {
  background: rgba(159, 191, 255, 0.15);
  border-radius: 3px;
}

.message {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  align-items: baseline;
  animation: fadeUp 0.4s ease-out;
}
.message .role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  padding-top: 4px;
}
.message.andy .role {
  color: var(--andy-cyan);
}
.message.user .role {
  color: var(--user-tint);
}
.message.error .role {
  color: var(--error);
}
.message .content {
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg);
  white-space: pre-wrap;
}
.message.intro .content {
  color: var(--fg-dim);
  font-style: italic;
}

.message.thinking .content::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 14px;
  margin-left: 4px;
  background: var(--andy-cyan);
  animation: blink 1s infinite;
  vertical-align: text-bottom;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

/* ---- Input row ---- */
.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.input-row:focus-within {
  border-color: rgba(92, 200, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(92, 200, 255, 0.08),
    0 10px 40px rgba(0, 0, 0, 0.4);
}

#message-input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 15px;
  padding: 10px 4px;
}
#message-input::placeholder {
  color: var(--fg-dim);
}

.mic-btn,
.send-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 50%;
  color: var(--fg-dim);
  cursor: pointer;
  transition: color 0.2s, background 0.2s, transform 0.15s;
}
.mic-btn:hover,
.send-btn:hover {
  color: var(--andy-cyan);
  background: rgba(92, 200, 255, 0.08);
}
.send-btn {
  color: var(--andy-cyan);
}
.send-btn:hover {
  transform: translateX(2px);
}
.mic-btn svg,
.send-btn svg {
  width: 18px;
  height: 18px;
}
.mic-btn.recording {
  background: rgba(255, 122, 122, 0.15);
  color: var(--error);
  animation: pulse 1.4s infinite;
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 122, 122, 0.5);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(255, 122, 122, 0);
  }
}

/* ---- Mobile ---- */
@media (max-width: 640px) {
  .stage {
    /* Clear the fixed top bar so the avatar/HUD doesn't sit under it. */
    padding: 64px 16px 16px;
    grid-template-rows: 30vh 1fr auto;
    gap: 16px;
  }
  .back-link {
    top: 12px;
    left: 12px;
    font-size: 10px;
    padding: 6px 10px;
    max-width: 34vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  /* Keep the toggles anchored to the right so they never overlap ← Portal.
     Cap the skill <select> so it stops spanning the whole width. */
  .header-toggles {
    top: 10px;
    right: 12px;
    left: auto;
    gap: 6px;
    max-width: 62vw;
  }
  .header-toggle {
    font-size: 10px;
    padding: 6px 10px;
    letter-spacing: 0.04em;
  }
  #skill-select {
    max-width: 42vw;
    min-width: 0;
    text-overflow: ellipsis;
  }
  .message {
    grid-template-columns: 50px 1fr;
    gap: 10px;
  }
}

/* Extra-narrow phones: trim further so the row always fits on one line. */
@media (max-width: 400px) {
  .back-link {
    font-size: 0;
    padding: 6px 9px;
  }
  .back-link::before {
    content: '←';
    font-size: 13px;
  }
  .header-toggle {
    padding: 6px 8px;
  }
  #skill-select {
    max-width: 38vw;
  }
}