:root {
  --bg: #000;
  --cyan: #00e5ff;
  --cyan-dim: rgba(0, 229, 255, 0.35);
  --cyan-faint: rgba(0, 229, 255, 0.08);
  --orange: #ffb300;
  --text: #bff7ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  height: 100dvh;   /* suit la barre d'adresse / le clavier mobile */
  background: var(--bg);
  color: var(--text);
  font-family: "Share Tech Mono", monospace;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

button, input, select { touch-action: manipulation; }

body {
  display: flex;
  flex-direction: column;
  background: radial-gradient(ellipse at center, #001418 0%, #000 65%);
}

.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(0, 229, 255, 0.03) 0 1px, transparent 1px 3px);
  z-index: 10;
}

/* ---------- Header HUD ---------- */
.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  padding-top: max(16px, env(safe-area-inset-top));
  padding-left: max(24px, env(safe-area-inset-left));
  padding-right: max(24px, env(safe-area-inset-right));
  border-bottom: 1px solid var(--cyan-dim);
}

.hud-top h1 {
  font-family: "Orbitron", sans-serif;
  font-weight: 800;
  letter-spacing: 0.4em;
  font-size: clamp(1rem, 3vw, 1.8rem);
  margin: 0;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan);
}

.hud-block { display: flex; flex-direction: column; min-width: 120px; }
.hud-block.right { text-align: right; }
.hud-block .label { font-size: 0.7rem; color: var(--cyan-dim); letter-spacing: 0.2em; }
.hud-block .value { font-size: 1rem; color: var(--cyan); }

/* ---------- Stage ---------- */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px 24px;
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  min-height: 0;
}

.stage {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: 0;
}

#spectrum {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.core-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-family: "Orbitron", sans-serif;
  font-size: clamp(0.6rem, 1.6vw, 0.85rem);
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
  pointer-events: none;
}

/* ---------- Message technique (erreurs uniquement) ---------- */
.notice {
  width: min(760px, 100%);
  min-height: 1.4em;
  text-align: center;
  font-size: 0.85rem;
  color: var(--orange);
  opacity: 0;
  transition: opacity 0.4s;
}
.notice.show { opacity: 1; }

/* ---------- Controls ---------- */
.controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
  width: min(760px, 100%);
}

.mic-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 34px;
  border-radius: 999px;
  border: 2px solid var(--cyan);
  background: rgba(0, 229, 255, 0.06);
  color: var(--cyan);
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  letter-spacing: 0.25em;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.3), inset 0 0 12px rgba(0, 229, 255, 0.15);
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.mic-btn svg { width: 22px; height: 22px; fill: currentColor; }
.mic-btn:hover { transform: scale(1.04); box-shadow: 0 0 28px rgba(0, 229, 255, 0.55); }
.mic-btn.listening {
  color: var(--orange);
  border-color: var(--orange);
  background: rgba(255, 179, 0, 0.08);
  animation: pulse 1.2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(255, 179, 0, 0.4); }
  50% { box-shadow: 0 0 34px rgba(255, 179, 0, 0.85); }
}

.text-form { display: flex; width: 100%; gap: 8px; }
.text-form input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid var(--cyan-dim);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}
.text-form input:focus { border-color: var(--cyan); box-shadow: 0 0 10px var(--cyan-dim); }

.text-form button {
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: "Orbitron", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  cursor: pointer;
}
.text-form button:hover { background: var(--cyan-faint); }

/* ---------- Smartphone ---------- */
@media (max-width: 600px) {
  .hud-top { padding-top: max(10px, env(safe-area-inset-top)); padding-bottom: 10px; }
  .hud-top h1 { letter-spacing: 0.25em; }
  .hud-block { min-width: 0; }
  .hud-block .label { display: none; }
  .hud-block .value { font-size: 0.8rem; }

  main { padding: 4px 12px; padding-bottom: max(12px, env(safe-area-inset-bottom)); }
  .stage { min-height: 220px; }

  .controls { gap: 10px; margin-top: 10px; }
  .mic-btn {
    width: 100%;
    justify-content: center;
    padding: 18px 24px;
    font-size: 1.1rem;
  }
  .mic-btn svg { width: 26px; height: 26px; }

  /* 16px minimum : évite le zoom automatique d'iOS sur le champ texte */
  .text-form input { font-size: 16px; padding: 12px; }
  .text-form button { padding: 0 12px; }

}

/* écran très bas (paysage, ou clavier ouvert) : on réduit le décor */
@media (max-height: 520px) {
  .hud-top { display: none; }
  .stage { min-height: 120px; }
}