@import url("https://fonts.googleapis.com/css2?family=Cormorant+SC:wght@300;400;500;600;700&family=Montserrat:wght@300;400;500;600;700&display=swap");

:root {
  --background-color: #f8f9fa;
  --surface-color: #ffffff;
  --surface-light: #f5f6f7;
  --surface-warm: #f9f8f6;
  --on-surface-light: #e8eaed;
  --primary-color: #4e8a78;
  --primary-hover: #3a7563;
  --secondary-color: #658e9c;
  --accent-color: #e0e0ce;
  --accent-light: #e8e6d8;
  --text-color: #262626;
  --text-secondary: #5f6368;
  --text-light: #80868b;
  --border-color: #dadce0;
  --border-light: #f1f3f4;
  --border-warm: #e3e1d6;
  --error-color: #d93025;
  --success-color: #4e8a78;
  --font-family-main: "Montserrat", sans-serif;
  --font-family-display: "Cormorant SC", serif;
  --header-height: 64px;
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-warm: 0 2px 8px rgba(78, 138, 120, 0.08);
}

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

html {
  color-scheme: light;
}

body {
  font-family: var(--font-family-main);
  background: linear-gradient(135deg, var(--background-color) 0%, #f0f2f5 100%);
  color: var(--text-color);
  overflow: hidden;
}

/* Screen Containers & Transitions */
.screen {
  width: 100vw;
  height: 100vh;
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 0.4s ease-in-out, visibility 0.4s;
}

.screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Auth Form Styles */
.auth-form {
  background: var(--surface-color);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-medium);
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
  font-size: 0.95rem;
}

.form-input {
  width: 100%;
  padding: 1rem;
  background: var(--surface-light);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-color);
  font-size: 1rem;
  font-family: var(--font-family-main);
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--surface-color);
  box-shadow: 0 0 0 4px rgba(78, 138, 120, 0.1);
}

.form-select {
  width: 100%;
  padding: 1rem;
  background: var(--surface-light);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-color);
  font-size: 1rem;
  font-family: var(--font-family-main);
  transition: all 0.3s ease;
}

.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(78, 138, 120, 0.1);
}

.form-button {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  color: var(--surface-color);
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family-main);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-light);
}

.form-button:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, #557a87 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.form-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.auth-toggle {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.auth-toggle button {
  background: none;
  border: none;
  color: var(--primary-color);
  cursor: pointer;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.auth-toggle button:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.error-message {
  color: var(--error-color);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  font-weight: 500;
}

.success-message {
  color: var(--success-color);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  font-weight: 500;
}

/* Landing Screen */
#landing-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(
    135deg,
    var(--background-color) 0%,
    var(--accent-color) 100%
  );
}

.landing-header h1 {
  font-family: var(--font-family-display);
  font-size: 4.5rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.landing-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 400;
}

.core-benefits {
  list-style: none;
  margin: 2.5rem 0;
  max-width: 500px;
}

.core-benefits li {
  display: flex;
  align-items: center;
  text-align: left;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--text-color);
  font-weight: 500;
}

.core-benefits .icon {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
  flex-shrink: 0;
}

#voice-visualizer {
  position: relative;
  width: 150px;
  height: 150px;
  margin-bottom: 2.5rem;
}

#voice-visualizer .circle {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(
    45deg,
    var(--primary-color),
    var(--secondary-color)
  );
  opacity: 0.3;
  animation: pulse 4s infinite ease-in-out;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(0.6);
    opacity: 0;
  }
  50% {
    transform: scale(1);
    opacity: 0.3;
  }
}

.landing-controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.landing-btn {
  background: var(--surface-color);
  color: var(--text-color);
  border: 2px solid var(--primary-color);
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family-main);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  box-shadow: var(--shadow-light);
}

.landing-btn:hover {
  background: var(--primary-color);
  color: var(--surface-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.landing-btn.secondary {
  background: var(--surface-light);
  color: var(--text-color);
  border-color: var(--border-color);
}

.landing-btn.secondary:hover {
  background: var(--accent-color);
  border-color: var(--secondary-color);
}

/* Auth Screen */
#auth-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(
    135deg,
    var(--background-color) 0%,
    var(--accent-color) 100%
  );
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-header h1 {
  font-family: var(--font-family-display);
  font-size: 3rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 500;
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Recording Status Indicator */
#recording-status {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--error-color) 0%, #ff6b47 100%);
  color: var(--surface-color);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-medium);
}

#recording-status.hidden {
  opacity: 0;
  visibility: hidden;
}

/* --- Chat Screen --- */
#chat-screen {
  display: flex;
  background: var(--accent-color);
}

/* Enforce Montserrat font for all text within the chat screen only */
#chat-screen,
#chat-screen .header,
#chat-screen .user-info,
#chat-screen #chat-window,
#chat-screen .message-content,
#chat-screen .message-content strong,
#chat-screen .sidebar,
#chat-screen .chat-preview-btn,
#chat-screen #new-chat-btn,
#chat-screen .summary-btn,
#chat-screen .logout-btn,
#chat-screen .language-dropdown,
#chat-screen #chat-input,
#chat-screen .file-preview-chip,
#chat-screen .typing-indicator,
#chat-screen .chat-error,
#chat-screen .loading-message,
#chat-screen .input-row,
#chat-screen #chat-form,
#chat-screen .action-button,
#chat-screen .chat-title,
#chat-screen .delete-chat-btn,
#chat-screen .avatar,
#chat-screen .floating-summary-btn {
  font-family: var(--font-family-main);
}

.sidebar {
  width: 280px;
  background: linear-gradient(
    135deg,
    var(--accent-color) 0%,
    var(--accent-light) 100%
  );
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border-right: 1px solid var(--border-warm);
  flex-shrink: 0;
  box-shadow: 2px 0 8px rgba(78, 138, 120, 0.1);
}

/* Style for the chat history buttons */
.chat-preview-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1rem;
  margin-bottom: 0.5rem;
  text-align: left;
  background: rgba(255, 255, 255, 0.6);
  color: var(--text-color);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(78, 138, 120, 0.1);
}

.chat-preview-btn:hover {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(78, 138, 120, 0.3);
  transform: translateY(-1px);
}

.chat-preview-btn.active {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: var(--surface-color);
  border-color: transparent;
}

.chat-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-right: 8px;
}

.delete-chat-btn {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1;
  transition: all 0.2s ease;
  opacity: 0;
  transform: scale(0.8);
}

.chat-preview-btn:hover .delete-chat-btn {
  opacity: 1;
  transform: scale(1);
}

.delete-chat-btn:hover {
  background: rgba(217, 48, 37, 0.1);
  color: var(--error-color);
}

.chat-container {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--accent-color);
}

#new-chat-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.7);
  color: var(--text-color);
  border: 2px solid rgba(78, 138, 120, 0.3);
  padding: 1rem;
  border-radius: 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-family-main);
  transition: all 0.3s ease;
  margin-bottom: 1.5rem;
  width: 100%;
  box-shadow: 0 2px 8px rgba(78, 138, 120, 0.1);
}

#new-chat-btn:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(78, 138, 120, 0.2);
}

.header {
  height: var(--header-height);
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-warm);
  flex-shrink: 0;
  background: linear-gradient(
    135deg,
    var(--accent-color) 0%,
    var(--accent-light) 100%
  );
  box-shadow: 0 2px 8px rgba(78, 138, 120, 0.1);
}

/* Use display font for the chat title */
#chat-screen .header h1 {
  font-family: var(--font-family-display);
  font-weight: 600;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  color: var(--text-color);
}

.logout-btn {
  background: linear-gradient(135deg, var(--error-color), #ff4444);
  color: var(--surface-color);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-family-main);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-light);
}

.logout-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Summary buttons */
.summary-btn {
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--primary-color)
  );
  color: var(--surface-color);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-family-main);
  margin-right: 0.5rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-light);
}

.summary-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.summary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.floating-summary-btn {
  position: fixed;
  bottom: 120px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--primary-color)
  );
  color: var(--surface-color);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-medium);
  z-index: 1000;
  transition: all 0.3s ease;
}

.floating-summary-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(78, 138, 120, 0.3);
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.form-button.secondary {
  background: var(--surface-light);
  color: var(--text-color);
  border: 2px solid var(--border-color);
}

.form-button.secondary:hover {
  background: var(--accent-color);
  border-color: var(--secondary-color);
}

#otp-input {
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 0.2rem;
  font-family: var(--font-family-main);
}

#chat-window {
  flex-grow: 1;
  overflow-y: auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  background: var(--accent-color);
}

.message-wrapper {
  width: 100%;
  display: flex;
  gap: 1rem;
  align-self: flex-start;
}

.user-message-wrapper {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  color: var(--surface-color);
  font-weight: 600;
  box-shadow: var(--shadow-light);
}

.message-content {
  max-width: 800px;
  padding: 1rem 1.5rem;
  line-height: 1.7;
  font-size: 1rem;
  word-wrap: break-word;
  border-radius: 12px 24px 24px 24px;
  background: var(--surface-warm);
  border: 1px solid var(--border-warm);
  box-shadow: var(--shadow-warm);
  font-family: var(--font-family-main);
}

.user-message-wrapper .message-content {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: var(--surface-color);
  border-radius: 24px 12px 24px 24px;
  border: none;
}

.message-content strong {
  font-weight: 600;
  display: block;
  margin-bottom: 0.5rem;
}

.user-message-wrapper .message-content strong {
  color: var(--surface-color);
}

.chat-input-area {
  padding: 1.5rem 2rem;
  flex-shrink: 0;
  background: linear-gradient(
    to top,
    var(--accent-light) 0%,
    var(--accent-color) 100%
  );
  border-top: 1px solid var(--border-warm);
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  width: 100%;
}

.language-dropdown {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background: var(--surface-color);
  color: var(--text-color);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-family-main);
  cursor: pointer;
  outline: none;
  transition: all 0.3s ease;
  min-width: 160px;
  box-shadow: var(--shadow-light);
}

.language-dropdown:hover {
  background: var(--surface-light);
  border-color: var(--secondary-color);
}

.language-dropdown:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(78, 138, 120, 0.1);
}

/* Keep language selector visible and nicely placed on smaller screens */
@media (max-width: 1024px) {
  #chat-screen .header {
    flex-wrap: wrap;
    row-gap: 0.75rem;
  }
  #chat-screen .header h1 {
    flex: 1 1 100%;
    text-align: center;
  }
  #chat-screen .user-info {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}

/* Loading and error states */
.loading-message {
  opacity: 0.7;
  font-style: italic;
}

.chat-error {
  background: rgba(217, 48, 37, 0.1);
  border: 1px solid rgba(217, 48, 37, 0.2);
  color: var(--error-color);
  padding: 1rem;
  border-radius: 12px;
  margin: 8px 0;
  font-size: 14px;
  font-weight: 500;
}

#chat-form {
  flex-grow: 1;
  background: var(--surface-color);
  border-radius: 32px;
  display: flex;
  flex-direction: column;
  border: 2px solid var(--border-warm);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-warm);
}

#chat-form:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(78, 138, 120, 0.1);
}

.input-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem 0.5rem 0.5rem;
}

#chat-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: var(--text-color);
  font-size: 1rem;
  padding: 1rem;
  line-height: 1.5;
  font-family: var(--font-family-main);
}

#chat-input:focus {
  outline: none;
}

#chat-input::placeholder {
  color: var(--text-secondary);
}

.action-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: none;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.action-button svg {
  width: 24px;
  height: 24px;
}

.action-button:hover {
  background-color: var(--accent-color);
  color: var(--primary-color);
}

#chat-form-file-input {
  display: none;
}

#send-btn {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: var(--surface-color);
  transform: scale(0.9);
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-light);
}

#send-btn:not([disabled]) {
  transform: scale(1);
  opacity: 1;
}

#send-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-medium);
}

#mic-btn {
  background-color: var(--surface-light);
  border: 2px solid var(--border-color);
  width: 56px;
  height: 56px;
  margin-bottom: 2px;
}

#mic-btn.recording {
  background: linear-gradient(135deg, var(--error-color), #ff4444);
  border-color: var(--error-color);
  color: var(--surface-color);
  animation: pulse-recording 1.5s infinite;
}

@keyframes pulse-recording {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

#file-preview-container {
  display: none;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem;
  border-top: 1px solid var(--border-light);
  margin: 0 0.5rem;
}

.file-preview-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-color);
  color: var(--text-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  animation: fadeInUp 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.remove-file-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: bold;
  line-height: 1;
  padding: 0 0 0 0.5rem;
  transition: color 0.2s ease;
}

.remove-file-btn:hover {
  color: var(--error-color);
}

.typing-indicator {
  display: flex;
  gap: 4px;
  align-items: center;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-color);
  animation: typing 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) {
  animation-delay: -0.32s;
}

.typing-dot:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes typing {
  0%,
  80%,
  100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  .header,
  #chat-window,
  .chat-input-area {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .landing-header h1 {
    font-size: 3rem;
  }

  .auth-header h1 {
    font-size: 2.5rem;
  }
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Language dropdown tweaks */
#language-menu {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-medium);
}

.lang-opt {
  font-family: var(--font-family-main);
  font-size: 0.95rem;
  color: var(--text-color);
  transition: all 0.2s ease;
}

.lang-opt:hover {
  background: var(--accent-color) !important;
  color: var(--primary-color);
}