:root {
  --bg-0: #07070c;
  --bg-1: #0d0d18;
  --text: #ecebff;
  --muted: #8b8ba7;
  --card: rgba(255, 255, 255, 0.04);
  --card-brd: rgba(255, 255, 255, 0.08);
  --accent: #7c5cff;
  --accent-2: #16d3d3;
  --user: #2a2a44;
  --assistant: rgba(124, 92, 255, 0.16);
  --danger: #ff5c7c;
  --ok: #37e0a6;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg-0);
  overflow: hidden;
}

/* Animated ambient background */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(60vmax 60vmax at 20% 15%, rgba(124, 92, 255, 0.22), transparent 60%),
    radial-gradient(55vmax 55vmax at 85% 25%, rgba(22, 211, 211, 0.16), transparent 60%),
    radial-gradient(70vmax 70vmax at 60% 100%, rgba(255, 92, 124, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
  filter: saturate(1.1);
  animation: drift 22s ease-in-out infinite alternate;
}

@keyframes drift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-2%, -1%, 0) scale(1.06);
  }
}

.app {
  position: relative;
  z-index: 1;
  height: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 22px 20px 26px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.logo {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0b12;
  font-size: 15px;
}

.brand-name {
  font-size: 15px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--card-brd);
  font-size: 12.5px;
  color: var(--muted);
  backdrop-filter: blur(8px);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
}
.dot[data-state="connecting"] {
  background: #ffd166;
  animation: blink 1s infinite;
}
.dot[data-state="listening"] {
  background: var(--ok);
}
.dot[data-state="speaking"] {
  background: var(--accent);
}
.dot[data-state="error"] {
  background: var(--danger);
}

@keyframes blink {
  50% {
    opacity: 0.3;
  }
}

/* Stage with the orb */
.stage {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 26px;
  min-height: 0;
}

.orb {
  position: relative;
  width: 210px;
  height: 210px;
  display: grid;
  place-items: center;
  --level: 0;
}

.orb-core {
  position: absolute;
  inset: 34%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #d9d2ff, var(--accent) 55%, #3a1e8a 100%);
  box-shadow: inset 0 0 24px rgba(255, 255, 255, 0.35);
  transform: scale(calc(1 + var(--level) * 0.35));
  transition: transform 0.06s linear;
}

.orb-glow {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.55), transparent 62%);
  filter: blur(16px);
  opacity: calc(0.4 + var(--level) * 0.6);
  transform: scale(calc(1 + var(--level) * 0.55));
  transition: opacity 0.08s linear, transform 0.08s linear;
}

.orb-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.12);
}
.ring1 {
  inset: 8%;
  transform: scale(calc(1 + var(--level) * 0.25));
  border-color: rgba(124, 92, 255, 0.4);
  transition: transform 0.08s linear;
}
.ring2 {
  inset: 0;
  transform: scale(calc(1 + var(--level) * 0.12));
  border-color: rgba(22, 211, 211, 0.22);
  transition: transform 0.1s linear;
}

body[data-state="idle"] .orb-core {
  filter: grayscale(0.35) brightness(0.8);
}

/* Breathing when idle-but-connected */
body[data-state="listening"] .orb-glow {
  animation: breathe 3.2s ease-in-out infinite;
}
@keyframes breathe {
  50% {
    opacity: 0.7;
  }
}

/* Call button */
.call-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid var(--card-brd);
  background: linear-gradient(135deg, var(--accent), #5a3ff0);
  color: white;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(124, 92, 255, 0.35);
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.call-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 38px rgba(124, 92, 255, 0.45);
}
.call-btn:active {
  transform: translateY(0);
}
.call-btn:disabled {
  opacity: 0.6;
  cursor: default;
}
.call-btn.active {
  background: linear-gradient(135deg, #ff5c7c, #d63a5c);
  box-shadow: 0 10px 30px rgba(255, 92, 124, 0.35);
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* Transcript */
.transcript-wrap {
  background: var(--card);
  border: 1px solid var(--card-brd);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-height: 34vh;
}

.transcript-head {
  padding: 11px 16px;
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--card-brd);
}

.transcript {
  padding: 14px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.empty {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 18px 0;
}

.bubble {
  max-width: 78%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 14.5px;
  line-height: 1.45;
  animation: rise 0.18s ease;
}
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

.bubble .who {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 3px;
}

.bubble.user {
  align-self: flex-end;
  background: var(--user);
  border-bottom-right-radius: 4px;
}
.bubble.assistant {
  align-self: flex-start;
  background: var(--assistant);
  border: 1px solid rgba(124, 92, 255, 0.25);
  border-bottom-left-radius: 4px;
}
.bubble.system {
  align-self: center;
  background: rgba(255, 92, 124, 0.12);
  border: 1px solid rgba(255, 92, 124, 0.3);
  color: #ffc2ce;
  font-size: 13px;
}

/* Scrollbar */
.transcript::-webkit-scrollbar {
  width: 8px;
}
.transcript::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

@media (max-width: 560px) {
  .orb {
    width: 170px;
    height: 170px;
  }
  .transcript-wrap {
    max-height: 40vh;
  }
}