:root {
  --primary: #059669;
  --primary-light: #34d399;
  --primary-dark: #047857;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header styles */
.header {
  background-color: white;
  border-bottom: 1px solid var(--gray-200);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mic-icon {
  color: var(--primary);
}

.title h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.title p {
  font-size: 0.75rem;
  color: var(--gray-500);
}

.clear-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem;
  color: var(--gray-500);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.clear-btn:hover {
  color: var(--gray-700);
}

/* Chat container styles */
.chat-container {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.welcome-screen {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--gray-500);
  padding: 2rem;
}

.welcome-icon {
  color: var(--primary);
  margin-bottom: 1rem;
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.welcome-screen h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.welcome-screen p {
  font-size: 0.875rem;
  max-width: 24rem;
}

/* Messages styles */
.messages {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  max-width: 80%;
  padding: 1rem;
  border-radius: 0.75rem;
  animation: fadeIn 0.3s ease-out;
}

.message.user {
  background-color: var(--primary);
  color: white;
  margin-left: auto;
  border-bottom-right-radius: 0;
}

.message.assistant {
  background-color: white;
  border: 1px solid var(--gray-200);
  margin-right: auto;
  border-bottom-left-radius: 0;
}

/* Input area styles */
.input-area {
  background-color: white;
  border-top: 1px solid var(--gray-200);
  padding: 1rem;
  position: sticky;
  bottom: 0;
}

.input-form {
  max-width: 1200px;
  margin: 0 auto;
}

.input-wrapper {
  display: flex;
  gap: 0.5rem;
  background-color: white;
  border: 1px solid var(--gray-300);
  border-radius: 0.5rem;
  padding: 0.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.1);
}

textarea {
  flex: 1;
  border: none;
  background: none;
  resize: none;
  padding: 0;
  font-family: inherit;
  font-size: 1rem;
  min-height: 24px;
  max-height: 120px;
  color: var(--gray-900);
}

textarea:focus {
  outline: none;
}

.send-btn {
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: not-allowed;
  padding: 0.25rem;
  border-radius: 0.375rem;
  transition: all 0.2s;
}

.send-btn:not(:disabled) {
  color: var(--primary);
  cursor: pointer;
}

.send-btn:not(:disabled):hover {
  background-color: var(--gray-100);
}

.input-hint {
  text-align: center;
  color: var(--gray-500);
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

/* Action buttons styles */
.action-buttons {
  position: fixed;
  bottom: 7rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.action-btn {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 9999px;
  border: none;
  color: white;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mic-btn {
  background-color: var(--primary);
}

.mic-btn:hover {
  background-color: var(--primary-dark);
}

.mic-btn.listening::before {
  content: "";
  position: absolute;
  inset: -0.5rem;
  border-radius: 9999px;
  border: 2px solid var(--primary-light);
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.voice-stop-btn {
  background-color: #f59e0b;
  display: none;
}

.voice-stop-btn:hover {
  background-color: #d97706;
}

.voice-stop-btn.visible {
  display: flex;
}

/* Loader styles */
.loader {
  display: none;
  position: relative;
  width: 80px;
  height: 20px;
  margin: 1rem auto;
}

.loader.visible {
  display: block;
}

.loader div {
  position: absolute;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}

.loader div:nth-child(1) {
  left: 8px;
  animation: loader1 0.6s infinite;
}

.loader div:nth-child(2) {
  left: 8px;
  animation: loader2 0.6s infinite;
}

.loader div:nth-child(3) {
  left: 32px;
  animation: loader2 0.6s infinite;
}

.loader div:nth-child(4) {
  left: 56px;
  animation: loader3 0.6s infinite;
}

/* Animations */
@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes pulse {
  50% {
    opacity: 0.5;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loader1 {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes loader3 {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}

@keyframes loader2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(24px, 0);
  }
}

/* Responsive styles */
@media (max-width: 640px) {
  .message {
    max-width: 90%;
  }

  .input-area {
    padding: 0.75rem;
  }

  .action-buttons {
    bottom: 6rem;
    right: 1rem;
  }

  .action-btn {
    width: 3rem;
    height: 3rem;
  }
}