:root {
  --bg: #000;
  --surface: #111;
  --surface-2: #1a1a1a;
  --border: #222;
  --fg: #f5f5f5;
  --muted: #888;
  --muted-2: #555;
  --accent: #d4af37;
  --accent-soft: rgba(212, 175, 55, 0.15);
  --danger: #c0392b;
  --tabbar-h: 76px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--bg); color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

main {
  min-height: 100dvh;
  position: relative;
}

/* ===== Vistas (pestañas) ===== */
.view {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: max(28px, env(safe-area-inset-top)) 20px calc(var(--tabbar-h) + 24px);
  max-width: 520px;
  margin: 0 auto;
  min-height: 100dvh;
}
.view[data-active="true"] { display: flex; }

header { text-align: center; }
h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.muted { color: var(--muted); margin-top: 6px; font-size: 14px; }

/* ===== Orbe ===== */
.orb {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #2a2a2a, #000 70%);
  border: 1px solid #1a1a1a;
  transition: transform 120ms ease, box-shadow 200ms ease;
  margin-top: 12px;
}
.orb.speaking {
  box-shadow: 0 0 60px 0 rgba(212, 175, 55, 0.4);
  transform: scale(1.04);
}
.orb.listening {
  box-shadow: 0 0 40px 0 rgba(255, 255, 255, 0.1);
}

/* ===== Botones ===== */
button.primary {
  width: 100%;
  max-width: 280px;
  padding: 18px 24px;
  border-radius: 9999px;
  background: var(--fg);
  color: var(--bg);
  border: none;
  font-size: 17px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}
button.primary.hang { background: var(--danger); color: #fff; }
button.primary:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary:active:not(:disabled) { transform: scale(0.98); }

/* ===== Selector de idioma (traductor) ===== */
.lang-row {
  display: flex;
  align-items: stretch;
  gap: 10px;
  width: 100%;
  max-width: 400px;
}
.lang-box {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.lang-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.lang-value {
  font-size: 16px;
  color: var(--fg);
  padding: 4px 0;
}
.lang-arrow {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-size: 18px;
}
.lang-select {
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 16px;
  font-family: inherit;
  padding: 4px 0;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  outline: none;
}

/* ===== Transcripciones ===== */
.transcript {
  width: 100%;
  max-height: 30vh;
  overflow-y: auto;
  font-size: 14px;
  color: var(--muted);
  padding: 0 4px;
}
.transcript .line { margin: 10px 0; }
.transcript .you { color: #aaa; }
.transcript .klar { color: var(--fg); }

/* Traductor: dos columnas de subtítulos */
.translate-transcript .pair {
  border-bottom: 1px solid var(--border);
  padding: 12px 4px;
  margin: 0;
}
.translate-transcript .pair:last-child { border-bottom: none; }
.translate-transcript .src {
  color: var(--muted);
  font-size: 13px;
}
.translate-transcript .dst {
  color: var(--fg);
  font-size: 15px;
  margin-top: 4px;
  font-weight: 400;
}
.translate-transcript .live {
  opacity: 0.7;
}

/* ===== Tab bar inferior ===== */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 100;
}
.tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--muted-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  font-family: inherit;
  padding: 8px;
  transition: color 100ms;
}
.tab[aria-current="true"] { color: var(--accent); }
.tab-icon { font-size: 22px; line-height: 1; }
.tab-label { font-size: 11px; letter-spacing: 0.3px; }
.tab:active { background: rgba(255, 255, 255, 0.04); }