:root {
  --bg: #04141a;
  --cyan: #38e1ff;
  --teal: #1de9c6;
  --amber: #ffc15e;
  --glow: rgba(56, 225, 255, 0.6);
  --ink: #cdf3ff;
  --dim: rgba(160, 220, 240, 0.55);
}

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

html, body {
  height: 100%;
  background: radial-gradient(ellipse at 50% 38%, #072330 0%, #04141a 55%, #020a0e 100%);
  color: var(--ink);
  font-family: "SF Mono", "JetBrains Mono", ui-monospace, "Segoe UI", monospace;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
}

#scene { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }

#vignette {
  position: fixed; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(2, 8, 12, 0.75) 100%);
  mix-blend-mode: multiply;
}

.hidden { opacity: 0 !important; pointer-events: none !important; }

/* ---------- HUD ---------- */
#hud {
  position: fixed; inset: 0; display: flex; flex-direction: column;
  justify-content: space-between; padding: 26px clamp(16px, 4vw, 54px);
  pointer-events: none; transition: opacity 0.8s ease; z-index: 5;
}
#hud > * { pointer-events: auto; }

.hud-top { display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: baseline; gap: 10px; letter-spacing: 0.32em; }
.brand-mark { color: var(--cyan); font-size: 18px; filter: drop-shadow(0 0 8px var(--glow)); }
.brand-name { font-size: 20px; font-weight: 700; letter-spacing: 0.5em; }
.brand-sub {
  font-size: 11px; color: var(--amber); letter-spacing: 0.2em;
  border: 1px solid rgba(255, 193, 94, 0.4); padding: 2px 8px; border-radius: 20px;
}

.status {
  display: flex; align-items: center; gap: 8px; font-size: 12px;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--dim);
}
.status i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--teal);
  box-shadow: 0 0 10px var(--teal); animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.35;} }

.center-readout {
  flex: 1; display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 8vh;
}
.subtitle {
  max-width: 760px; text-align: center; font-size: clamp(16px, 2.4vw, 26px);
  line-height: 1.45; color: var(--ink); text-shadow: 0 0 22px rgba(56, 225, 255, 0.35);
  min-height: 1.4em; transition: opacity 0.3s;
}

.hud-bottom { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.transcript {
  font-size: 13px; color: var(--dim); letter-spacing: 0.04em; min-height: 18px;
  text-align: center; max-width: 80vw;
}

.controls { display: flex; flex-direction: column; align-items: center; gap: 12px; }

.mic {
  width: 74px; height: 74px; border-radius: 50%; cursor: pointer;
  border: 1.5px solid rgba(56, 225, 255, 0.55); color: var(--cyan);
  background: radial-gradient(circle at 50% 35%, rgba(56,225,255,0.18), rgba(4,20,26,0.6));
  display: grid; place-items: center; transition: all 0.25s ease;
  box-shadow: 0 0 0 0 rgba(56, 225, 255, 0.5), inset 0 0 18px rgba(56,225,255,0.15);
}
.mic svg { fill: currentColor; filter: drop-shadow(0 0 6px var(--glow)); }
.mic:hover { transform: scale(1.06); border-color: var(--cyan); }
.mic.active {
  color: #fff; border-color: var(--cyan);
  box-shadow: 0 0 0 12px rgba(56, 225, 255, 0.07), 0 0 40px rgba(56,225,255,0.5), inset 0 0 24px rgba(56,225,255,0.4);
  animation: micpulse 1.1s infinite;
}
@keyframes micpulse { 0%,100%{box-shadow:0 0 0 10px rgba(56,225,255,0.08),0 0 40px rgba(56,225,255,0.5);} 50%{box-shadow:0 0 0 22px rgba(56,225,255,0.0),0 0 60px rgba(56,225,255,0.7);} }

.hint { font-size: 11px; color: var(--dim); letter-spacing: 0.12em; }

.text-input { display: flex; gap: 8px; width: min(520px, 86vw); }
.text-input input {
  flex: 1; background: rgba(6, 26, 34, 0.7); border: 1px solid rgba(56,225,255,0.25);
  color: var(--ink); padding: 11px 14px; border-radius: 12px; font: inherit; font-size: 14px;
  outline: none;
}
.text-input input:focus { border-color: var(--cyan); box-shadow: 0 0 16px rgba(56,225,255,0.25); }
.text-input button {
  background: rgba(56,225,255,0.14); border: 1px solid rgba(56,225,255,0.4);
  color: var(--cyan); border-radius: 12px; padding: 0 16px; cursor: pointer; font-size: 16px;
}
.text-input button:hover { background: rgba(56,225,255,0.26); }

/* ---------- Login ---------- */
.login {
  position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
  background: radial-gradient(ellipse at center, rgba(4,20,26,0.6), rgba(2,8,12,0.92));
  backdrop-filter: blur(6px); transition: opacity 0.6s ease;
}
.login-card { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.login-core {
  font-size: 52px; color: var(--cyan); filter: drop-shadow(0 0 24px var(--glow));
  animation: spin 14s linear infinite, breathe 3s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes breathe { 0%,100%{opacity:0.8;} 50%{opacity:1;} }
.login-card h1 { font-size: 30px; letter-spacing: 0.6em; margin-top: 6px; text-indent: 0.6em; }
.login-card p { color: var(--dim); letter-spacing: 0.3em; font-size: 11px; text-transform: uppercase; }
#loginForm { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; width: 260px; }
#loginForm input {
  background: rgba(6,26,34,0.8); border: 1px solid rgba(56,225,255,0.3); color: var(--ink);
  padding: 12px 14px; border-radius: 12px; font: inherit; text-align: center; letter-spacing: 0.1em; outline: none;
}
#loginForm input:focus { border-color: var(--cyan); box-shadow: 0 0 18px rgba(56,225,255,0.3); }
#loginForm button {
  background: linear-gradient(180deg, rgba(56,225,255,0.25), rgba(29,233,198,0.15));
  border: 1px solid var(--cyan); color: #eafdff; padding: 12px; border-radius: 12px;
  cursor: pointer; letter-spacing: 0.3em; font-weight: 600;
}
#loginForm button:hover { box-shadow: 0 0 24px rgba(56,225,255,0.4); }
.login-err { color: #ff7a7a; font-size: 12px; min-height: 16px; letter-spacing: 0.05em; }

@media (max-width: 640px) {
  .brand-name { font-size: 16px; letter-spacing: 0.3em; }
  .mic { width: 64px; height: 64px; }
}