/* ============================
   AI Companion — Core Styles
   ============================ */

:root {
  --bg-deep: #06060c;
  --bg-surface: #0d0d16;
  --bg-elevated: #14142a;
  --accent: #7c5cfc;
  --accent-glow: #9b7dff;
  --accent-soft: rgba(124, 92, 252, 0.15);
  --text-primary: #e8e6f0;
  --text-secondary: #8a87a0;
  --text-dim: #5a5872;
  --danger: #ff4d6a;
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow: hidden;
}

/* ---- Screen Management ---- */
.screen {
  display: none;
  position: fixed;
  inset: 0;
  flex-direction: column;
}
.screen.active { display: flex; }

.hidden { display: none !important; }

/* ============================
   AUTH SCREEN
   ============================ */
.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
}

.auth-logo {
  text-align: center;
  margin-bottom: 2.5rem;
}

.auth-logo h1 {
  font-size: 2.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent-glow), #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

.mini-orb {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  background: radial-gradient(circle at 40% 40%, var(--accent-glow), var(--accent), #4a2d9e);
  box-shadow: 0 0 40px rgba(124, 92, 252, 0.4), 0 0 80px rgba(124, 92, 252, 0.15);
  animation: orb-breathe 3s ease-in-out infinite;
}

@keyframes orb-breathe {
  0%, 100% { transform: scale(1); box-shadow: 0 0 40px rgba(124, 92, 252, 0.4); }
  50% { transform: scale(1.08); box-shadow: 0 0 60px rgba(124, 92, 252, 0.6); }
}

.auth-form {
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.auth-form input {
  background: var(--bg-elevated);
  border: 1px solid rgba(124, 92, 252, 0.15);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.auth-form input:focus {
  border-color: var(--accent);
}

.auth-form input::placeholder {
  color: var(--text-dim);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #9b5cfc);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 0.85rem;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(124, 92, 252, 0.4);
}

.btn-primary:active { transform: translateY(0); }

.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(255, 77, 106, 0.3);
  border-radius: var(--radius);
  padding: 0.7rem;
  font-family: var(--font);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-danger:hover { background: rgba(255, 77, 106, 0.1); }

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.btn-icon:hover {
  color: var(--text-primary);
  background: var(--accent-soft);
}

.auth-switch {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.auth-switch a {
  color: var(--accent-glow);
  text-decoration: none;
}

.auth-switch a:hover { text-decoration: underline; }

.error-msg {
  color: var(--danger);
  font-size: 0.85rem;
  text-align: center;
  margin-top: 0.75rem;
}

/* ============================
   ONBOARDING SCREEN
   ============================ */
.onboard-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
}

.onboard-container h2 {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.onboard-sub {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.onboard-field {
  width: 100%;
  max-width: 400px;
  text-align: left;
  margin-bottom: 1.5rem;
}

.onboard-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.onboard-field input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid rgba(124, 92, 252, 0.15);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1rem;
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}

.onboard-field input:focus { border-color: var(--accent); }

.personality-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  width: 100%;
  max-width: 400px;
}

.personality-grid.small { max-width: 100%; }

.personality-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 1rem 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  font-family: var(--font);
  color: var(--text-primary);
}

.personality-card:hover { background: rgba(124, 92, 252, 0.08); }

.personality-card.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.personality-emoji { font-size: 1.4rem; }
.personality-label { font-size: 0.9rem; font-weight: 500; }
.personality-desc { font-size: 0.75rem; color: var(--text-secondary); }

/* ============================
   MAIN CONVERSATION SCREEN
   ============================ */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.companion-name {
  font-size: 1.1rem;
  font-weight: 500;
  background: linear-gradient(135deg, var(--accent-glow), #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.conversation-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  gap: 1.5rem;
}

/* ---- Orb ---- */
.orb-container {
  position: relative;
  width: 280px;
  height: 280px;
}

#orb-canvas {
  width: 100%;
  height: 100%;
}

/* ---- Status & Transcript ---- */
.status-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: opacity 0.3s;
}

.transcript-area {
  min-height: 3rem;
  max-width: 500px;
  text-align: center;
  padding: 0 1rem;
}

.live-transcript {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.5;
  opacity: 0.9;
  transition: opacity 0.3s;
}

/* ---- Voice Bar ---- */
.voice-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  padding: 0.6rem 1rem;
  flex-wrap: wrap;
}

.bar-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 0.3rem;
}

.voice-selector {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.voice-chip {
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 0.3rem 0.7rem;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
}

.voice-chip:hover {
  color: var(--text-primary);
  border-color: rgba(124, 92, 252, 0.3);
}

.voice-chip.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-glow);
}

.personality-selector {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.personality-selector select {
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 0.3rem 0.7rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.78rem;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238a87a0'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
}

.personality-selector select:focus {
  border-color: var(--accent);
}

.personality-selector select option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.speed-selector {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.speed-selector input[type="range"] {
  width: 70px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-elevated);
  border-radius: 2px;
  outline: none;
}

.speed-selector input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

#speed-display {
  font-size: 0.75rem;
  color: var(--text-secondary);
  min-width: 2rem;
}

/* ---- Controls ---- */
.controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0 2rem;
  gap: 0.6rem;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mute-button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.mute-button:hover {
  border-color: rgba(124, 92, 252, 0.3);
  color: var(--text-primary);
}

.mute-button.muted {
  background: rgba(255, 77, 106, 0.15);
  border-color: rgba(255, 77, 106, 0.4);
  color: var(--danger);
}

.mic-button {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), #9b5cfc);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, box-shadow 0.3s;
  box-shadow: 0 0 0 0 rgba(124, 92, 252, 0);
}

.mic-button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(124, 92, 252, 0.5);
}

.mic-button:active { transform: scale(0.97); }

.mic-button.active {
  background: linear-gradient(135deg, #ff4d6a, #ff6b8a);
  box-shadow: 0 0 30px rgba(255, 77, 106, 0.4);
  animation: mic-pulse 1.5s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(255, 77, 106, 0.3); }
  50% { box-shadow: 0 0 40px rgba(255, 77, 106, 0.6); }
}

.mic-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---- Custom Prompt Area ---- */
.custom-prompt-area {
  padding: 0 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.custom-prompt-area textarea {
  width: 100%;
  max-width: 500px;
  min-height: 70px;
  max-height: 150px;
  background: var(--bg-elevated);
  border: 1px solid rgba(124, 92, 252, 0.15);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.85rem;
  line-height: 1.4;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.custom-prompt-area textarea:focus {
  border-color: var(--accent);
}

.custom-prompt-area textarea::placeholder {
  color: var(--text-dim);
}

.btn-save-prompt {
  background: var(--bg-elevated);
  border: 1px solid rgba(124, 92, 252, 0.2);
  color: var(--text-secondary);
  padding: 5px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.78rem;
  transition: all 0.2s;
}

.btn-save-prompt:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* ---- Text Chat Input ---- */
.text-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.5rem 0.75rem;
  max-width: 500px;
  margin: 0 auto;
  width: 100%;
}

.text-message-input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  padding: 0.6rem 1rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s;
}

.text-message-input:focus {
  border-color: var(--accent);
}

.text-message-input::placeholder {
  color: var(--text-dim);
}

.btn-send-text {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), #9b5cfc);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn-send-text:hover {
  transform: scale(1.08);
  box-shadow: 0 0 20px rgba(124, 92, 252, 0.4);
}

.btn-send-text:active {
  transform: scale(0.95);
}

/* ============================
   SETTINGS PANEL
   ============================ */
.settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 90vw;
  background: var(--bg-surface);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.settings-panel.visible {
  transform: translateX(0);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.settings-header h3 { font-size: 1rem; font-weight: 500; }

.settings-body {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
}

.settings-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.settings-field input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid rgba(124, 92, 252, 0.15);
  border-radius: var(--radius);
  padding: 0.7rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9rem;
  outline: none;
}

.settings-field input:focus { border-color: var(--accent); }

.settings-divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin: 0.5rem 0;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 480px) {
  .orb-container { width: 200px; height: 200px; }
  .personality-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .personality-card { padding: 0.7rem 0.3rem; }
}