/* UI Theme for MUSKU – Premium Dark Midnight with Teal Accent */
:root {
  --bg-main: #0A0F24;
  --bg-surface: #11162E;
  --color-primary: #1ABC9C;
  --color-primary-light: #3ED9A9;
  --color-success: #2ECC71;
  --color-error: #E74C3C;
  --color-info: #3498DB;
  --text-primary: #E0E6F7;
  --text-secondary: #A3B0D4;
}

/* Pink Theme – overrides accent colors when <html data-theme="pink"> */
[data-theme="pink"] {
  --bg-main: #1A0A14;
  --bg-surface: #2A0F20;
  --color-primary: #FF4FA3;
  --color-primary-light: #FF8AC4;
  --color-success: #FF6FB5;
  --color-error: #FF3B6B;
  --color-info: #FFB3D9;
  --text-primary: #FBE6F2;
  --text-secondary: #D9A7C4;
}

/* Global styles */
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-primary-light);
}

/* Header */
header {
  height: 64px;
  background: var(--bg-main);
  border-bottom: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  flex-shrink: 0;
}

/* Sidebar */
nav.sidebar {
  width: 240px;
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}
nav.sidebar a {
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
}
nav.sidebar a.active {
  background: var(--color-primary);
  color: var(--bg-main);
}

/* Main conversation area */
main.conversation {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background: var(--bg-main);
  padding: 1rem;
}

.bubble {
  max-width: 75%;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  animation: fadeInSlide 0.35s forwards;
}
.bubble.user {
  background: linear-gradient(135deg, var(--color-primary), var(--color-success));
  color: #fff;
  align-self: flex-end;
}
.bubble.assistant {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-left: 4px solid var(--color-primary);
  align-self: flex-start;
}

/* Input / Voice Bar */
footer.voice-bar {
  height: 64px;
  background: var(--bg-surface);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 0.5rem;
}
footer.voice-bar input {
  flex: 1;
  background: #212740;
  color: var(--text-primary);
  border: none;
  padding: 0.5rem;
  border-radius: 0.5rem;
}
footer.voice-bar input::placeholder { color: var(--text-secondary); }
footer.voice-bar button {
  background: var(--color-primary);
  color: var(--bg-main);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
}
footer.voice-bar button:hover { background: var(--color-primary-light); }

[data-theme="pink"] .state-listening .mic-icon {
  animation: pulse-pink 1.5s infinite;
}
@keyframes pulse-pink {
  0% { box-shadow: 0 0 0 0 rgba(255,79,163,0.4); }
  70% { box-shadow: 0 0 0 10px rgba(255,79,163,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,79,163,0); }
}

/* Voice state indicators (CSS only) */
.state-idle .mic-icon { opacity: 0.5; }
.state-listening .mic-icon { animation: pulse 1.5s infinite; }
.state-thinking .thinking-spinner { display: block; }
.state-speaking .waveform { animation: waveform 1s infinite; }
.state-error .error-badge { display: block; }

/* Animations */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(26,188,156,0.4); }
  70% { box-shadow: 0 0 0 10px rgba(26,188,156,0); }
  100% { box-shadow: 0 0 0 0 rgba(26,188,156,0); }
}
@keyframes fadeInSlide { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes waveform { 0% { transform: scaleY(1); } 50% { transform: scaleY(0.4); } 100% { transform: scaleY(1); } }

/* Toasts */
.toast { position: fixed; top: 1rem; right: 1rem; padding: 0.75rem 1rem; border-radius: 0.5rem; color: #fff; }
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-error); }
