:root {
  --bg-primary: #0a0e14;
  --bg-card: #131a24;
  --bg-card-hover: #1c2635;
  --accent-cyan: #00e5ff;
  --accent-purple: #7928ca;
  --accent-green: #00e676;
  --accent-red: #ff1744;
  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --border-color: #30363d;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  user-select: none;
}

.app-container {
  width: 100%;
  max-width: 480px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 16px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand .icon {
  font-size: 1.6rem;
}

.brand h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, #00e5ff, #7928ca);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.user-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.device-badge {
  font-size: 0.75rem;
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.4);
  color: var(--accent-cyan);
  padding: 3px 8px;
  border-radius: 12px;
}

.device-badge strong {
  color: #ffffff;
}

.btn-logout {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: rgba(255, 23, 68, 0.15);
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.connection-badges {
  display: flex;
  gap: 6px;
}

.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  border: 1px solid var(--border-color);
  background-color: #161b22;
  transition: all 0.3s ease;
}

.badge.on {
  background-color: rgba(0, 230, 118, 0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.badge.off {
  background-color: rgba(255, 23, 68, 0.15);
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.card-header h2 {
  font-size: 1rem;
  font-weight: 600;
}

.card-header .subtext {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Switch styling */
.toggle-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #30363d;
  transition: 0.3s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-red);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

.toggle-status {
  font-size: 0.88rem;
  font-weight: 600;
}

.toggle-status.active {
  color: var(--accent-red);
}

.toggle-status.inactive {
  color: var(--accent-green);
}

/* Emotion grid */
.emotion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(78px, 1fr));
  gap: 8px;
}

.btn-emotion {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-main);
}

.btn-emotion .emoji {
  font-size: 1.8rem;
}

.btn-emotion .name {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.btn-emotion:active, .btn-emotion.active {
  background-color: #1f293d;
  border-color: var(--accent-cyan);
  transform: scale(0.96);
}

.btn-emotion.active .name {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Push to Talk section */
.ptt-card {
  align-items: center;
  text-align: center;
}

.ptt-action-zone {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px 0;
  width: 100%;
}

.ptt-button {
  position: relative;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #1f2937, #111827);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), inset 0 2px 4px rgba(255, 255, 255, 0.05);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  outline: none;
  touch-action: manipulation;
  transition: transform 0.15s ease;
}

.ptt-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
  color: var(--accent-cyan);
}

.mic-svg {
  width: 48px;
  height: 48px;
}

#ptt-text {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.ptt-button:active, .ptt-button.recording {
  transform: scale(0.94);
  background: linear-gradient(135deg, #7928ca, #00e5ff);
}

.ptt-button:active .ptt-inner, .ptt-button.recording .ptt-inner {
  color: #fff;
}

.pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  opacity: 0;
  pointer-events: none;
}

.ptt-button.recording .pulse-ring {
  animation: pulse 1.2s infinite ease-out;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

/* Stop / Interrupt button */
.stop-action-zone {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding-bottom: 8px;
}

.btn-stop {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.35);
  padding: 10px 22px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.18s ease;
  outline: none;
  touch-action: manipulation;
}

.btn-stop .stop-icon {
  width: 14px;
  height: 14px;
}

.btn-stop:hover {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(239, 68, 68, 0.6);
  color: #ffffff;
}

.btn-stop:active, .btn-stop.active-stop {
  background: #dc2626;
  border-color: #ef4444;
  color: #ffffff;
  transform: scale(0.96);
  box-shadow: 0 0 16px rgba(220, 38, 38, 0.5);
}

.transcript-feed {
  width: 100%;
  min-height: 48px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.transcript-feed .text-speaking {
  color: var(--accent-green);
  font-weight: 500;
}

.footer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 12px 0 4px 0;
}

/* Login Form Styling */
.login-card {
  margin-top: 10px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.95rem;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.2);
}

.btn-login {
  background: linear-gradient(135deg, #00e5ff 0%, #7928ca 100%);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 13px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: transform 0.15s, opacity 0.2s;
}

.btn-login:hover {
  opacity: 0.92;
}

.btn-login:active {
  transform: scale(0.98);
}

.login-error {
  background-color: rgba(255, 23, 68, 0.12);
  border: 1px solid var(--accent-red);
  color: #ff80ab;
  padding: 10px;
  border-radius: 6px;
  font-size: 0.82rem;
  text-align: center;
}

.login-hint {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.login-hint code {
  background: #161b22;
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--accent-cyan);
  font-family: monospace;
  font-size: 0.82rem;
}