/**
 * Modern Chat UI Styles for ADK Streaming Demo
 */

:root {
  --primary-color: #4285f4;
  --user-bubble-bg: #4285f4;
  --agent-bubble-bg: #f1f3f4;
  --user-text-color: #ffffff;
  --agent-text-color: #202124;
  --bg-color: #ffffff;
  --border-color: #e0e0e0;
  --input-bg: #f8f9fa;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
  /* Responsive spacing - safe for notched phones */
  --safe-top: env(safe-area-inset-top, 0);
  --safe-bottom: env(safe-area-inset-bottom, 0);
  --safe-left: env(safe-area-inset-left, 0);
  --safe-right: env(safe-area-inset-right, 0);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-color);
  color: #202124;
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

/* Header */
header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1.5rem 2rem;
  padding-top: calc(1.5rem + var(--safe-top));
  box-shadow: var(--shadow-lg);
  position: relative;
  flex-shrink: 0;
}

.header-title {
  text-align: center;
}

header h1 {
  font-size: clamp(1.25rem, 5vw, 2rem);
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

header .subtitle {
  font-size: clamp(0.75rem, 3vw, 1.25rem);
  opacity: 0.95;
  margin-top: 0.35rem;
}

.connection-status {
  position: absolute;
  top: calc(1.5rem + var(--safe-top));
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: clamp(0.75rem, 2.5vw, 0.875rem);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #34a853;
}

.status-indicator.disconnected {
  background-color: #dc2626;
}

/* Agent Presence - large, centered, highlighted */
.agent-presence {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 2.5rem 2rem;
  min-height: 220px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #e8f0fe 0%, #d2e3fc 50%, #e8f0fe 100%);
  border-bottom: 3px solid var(--primary-color);
  box-shadow: 0 4px 20px rgba(66, 133, 244, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.agent-avatar {
  position: relative;
  width: 96px;
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ffffff 0%, #e8f0fe 100%);
  border-radius: 50%;
  border: 5px solid #1a73e8;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.agent-icon {
  font-size: 3rem;
  z-index: 1;
}

/* Avatar border flash - blue (ready), green (listening), orange (speaking) */
.agent-presence.idle .agent-avatar {
  border-color: #1a73e8;
  animation: borderFlashBlue 2s ease-in-out infinite;
}

.agent-presence.listening .agent-avatar {
  border-color: #0d652d;
  animation: borderFlashGreen 1.5s ease-in-out infinite;
}

.agent-presence.speaking .agent-avatar {
  border-color: #e65100;
  animation: borderFlashOrange 1s ease-in-out infinite;
}

@keyframes borderFlashBlue {
  0%, 100% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.4), 0 4px 16px rgba(0, 0, 0, 0.15); }
  50% { box-shadow: 0 0 0 8px rgba(26, 115, 232, 0), 0 4px 20px rgba(26, 115, 232, 0.3); }
}

@keyframes borderFlashGreen {
  0%, 100% { box-shadow: 0 0 0 0 rgba(13, 101, 45, 0.4), 0 4px 16px rgba(0, 0, 0, 0.15); }
  50% { box-shadow: 0 0 0 8px rgba(13, 101, 45, 0), 0 4px 20px rgba(52, 168, 83, 0.4); }
}

@keyframes borderFlashOrange {
  0%, 100% { box-shadow: 0 0 0 0 rgba(230, 81, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.15); }
  50% { box-shadow: 0 0 0 8px rgba(230, 81, 0, 0), 0 4px 24px rgba(230, 81, 0, 0.5); }
}

.agent-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.agent-welcome {
  width: 75vw;
  max-width: 36rem;
  margin: 0 auto;
  padding: 0 0.5rem;
  font-size: clamp(0.8125rem, 2.5vw, 1.0625rem);
  line-height: 1.5;
  color: #202124;
  text-align: center;
  flex-shrink: 0;
  box-sizing: border-box;
  align-self: center;
}

.agent-status-text {
  font-size: clamp(1rem, 4vw, 1.5rem);
  font-weight: 600;
  color: #202124;
  letter-spacing: 0.02em;
}

.agent-presence.idle .agent-status-text { color: #1a73e8; }
.agent-presence.listening .agent-status-text { color: #0d652d; }
.agent-presence.speaking .agent-status-text { color: #e65100; }

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Main Layout: Split view for chat and console */
.main-layout {
  flex: 1;
  display: flex;
  max-width: 1800px;
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
  gap: 0;
}

/* Main Container: Chat area (2/3 of the layout) */
.container {
  flex: 2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--border-color);
}

/* Messages Area */
#messages {
  flex: 1;
  overflow-y: auto;
  padding: clamp(1rem, 4vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
  min-height: 0;
}

/* Scroll styling */
#messages::-webkit-scrollbar {
  width: 8px;
}

#messages::-webkit-scrollbar-track {
  background: transparent;
}

#messages::-webkit-scrollbar-thumb {
  background: #dadce0;
  border-radius: 4px;
}

#messages::-webkit-scrollbar-thumb:hover {
  background: #bdc1c6;
}

/* Message Bubbles */
.message {
  display: flex;
  margin-bottom: 0.5rem;
  animation: slideIn 0.3s ease-out;
}

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

.message.user {
  justify-content: flex-end;
}

.message.agent {
  justify-content: flex-start;
}

.bubble {
  max-width: 70%;
  padding: 0.75rem 1rem;
  border-radius: 1.25rem;
  word-wrap: break-word;
  box-shadow: var(--shadow);
  position: relative;
}

.message.user .bubble {
  background-color: var(--user-bubble-bg);
  color: var(--user-text-color);
  border-bottom-right-radius: 0.25rem;
}

.message.agent .bubble {
  background-color: var(--agent-bubble-bg);
  color: var(--agent-text-color);
  border-bottom-left-radius: 0.25rem;
}

.bubble-text {
  margin: 0;
  line-height: 1.5;
}

/* Interrupted message styling - gentle, non-jarring */
.message.interrupted .bubble {
  opacity: 0.75;
  background-color: #f1f3f4;
  border-left: 3px solid #f4b400;
  transition: opacity 0.3s ease, background-color 0.3s ease;
}

.message.interrupted .bubble::after {
  content: '— interrupted';
  display: block;
  font-size: 0.75rem;
  color: #80868b;
  font-style: italic;
  margin-top: 0.25rem;
}

/* Transcription message styling */
.message.transcription.user .bubble {
  opacity: 0.9;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.message.transcription.user .bubble::before {
  content: '🎤';
  opacity: 0.8;
  margin-right: 0.25rem;
}

/* Typing indicator */
.typing-indicator {
  display: inline-block;
  margin-left: 0.25rem;
  color: var(--warm-gray);
}

.typing-indicator::after {
  content: '...';
  animation: ellipsis 1.5s infinite;
}

@keyframes ellipsis {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}

/* Image bubble styling */
.bubble.image-bubble {
  padding: 0.25rem;
  max-width: 80%;
}

.bubble-image {
  max-width: 100%;
  max-height: 300px;
  width: auto;
  height: auto;
  border-radius: 0.75rem;
  display: block;
  object-fit: contain;
}

/* Input Form */
.input-container {
  border-top: 1px solid var(--border-color);
  background-color: white;
  padding: 1.5rem 2rem;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
}

#messageForm {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.input-wrapper {
  flex: 1;
  display: flex;
  gap: 0.75rem;
  width: 100%;
}

.input-wrapper #startAudioButton,
.input-wrapper #uploadImageButton,
.input-wrapper #endCallButton {
  flex: 1;
  width: 100%;
}

/* Text input and Send button - hidden (voice-only UI) */
#message,
#sendButton {
  display: none !important;
}

#message {
  flex: 1;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  font-size: 1rem;
  font-family: inherit;
  background-color: var(--input-bg);
  transition: all 0.2s ease;
  outline: none;
}

#message:focus {
  border-color: var(--primary-color);
  background-color: white;
  box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

/* Buttons - min 44px height for touch targets (Apple HIG) */
button {
  padding: clamp(0.75rem, 2.5vw, 0.875rem) clamp(1rem, 3vw, 1.5rem);
  border: none;
  border-radius: 1.5rem;
  font-size: clamp(0.875rem, 2.5vw, 0.9375rem);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  white-space: nowrap;
  min-height: 44px;
}

#sendButton {
  background-color: var(--primary-color);
  color: white;
}

#sendButton:hover:not(:disabled) {
  background-color: #3367d6;
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

#sendButton:disabled {
  background-color: #dadce0;
  color: #80868b;
  cursor: not-allowed;
  opacity: 0.6;
}

#startAudioButton {
  background-color: #34a853;
  color: white;
}

#startAudioButton:hover:not(:disabled) {
  background-color: #2d8e47;
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

#startAudioButton:disabled {
  background-color: #dadce0;
  color: #80868b;
  cursor: not-allowed;
  opacity: 0.6;
}

#endCallButton {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  color: white;
}

#endCallButton:hover:not(:disabled) {
  background: linear-gradient(135deg, #b91c1c 0%, #991b1b 100%);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

#endCallButton:disabled {
  background-color: #dadce0;
  color: #80868b;
  cursor: not-allowed;
  opacity: 0.6;
}

#uploadImageButton {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

#uploadImageButton:hover:not(:disabled) {
  background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

#uploadImageButton:disabled {
  background-color: #dadce0;
  color: #80868b;
  cursor: not-allowed;
  opacity: 0.6;
}

/* System Messages (e.g. "Connected to Gemini Live Agent", "Audio mode enabled") */
.system-message {
  text-align: center;
  color: #5f6368;
  font-size: clamp(0.75rem, 2.5vw, 0.875rem);
  padding: 0.5rem clamp(0.5rem, 3vw, 1rem);
  margin: 0.75rem 0;
  font-style: italic;
  line-height: 1.4;
  word-break: break-word;
}

/* Console Panel - hidden from UI */
.console-panel {
  display: none !important;
  flex: 1;
  flex-direction: column;
  background-color: #1e1e1e;
  color: #d4d4d4;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;
  overflow: hidden;
}

.console-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background-color: #2d2d2d;
  border-bottom: 1px solid #3e3e3e;
}

.console-header h2 {
  font-size: 0.875rem;
  font-weight: 600;
  margin: 0;
  color: #cccccc;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.console-checkbox {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: #999999;
  cursor: pointer;
  user-select: none;
}

.console-checkbox input[type="checkbox"] {
  width: 14px;
  height: 14px;
  cursor: pointer;
  accent-color: #4285f4;
}

.console-checkbox span {
  white-space: nowrap;
}

.console-clear-btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  background-color: #3e3e3e;
  color: #cccccc;
  border: 1px solid #4e4e4e;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.console-clear-btn:hover {
  background-color: #4e4e4e;
  border-color: #5e5e5e;
}

.console-content {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem;
  font-size: 0.75rem;
  line-height: 1.5;
}

/* Console entry */
.console-entry {
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  border-left: 3px solid transparent;
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: 0.25rem;
  transition: background-color 0.2s ease;
}

.console-entry.outgoing {
  border-left-color: #4285f4;
}

.console-entry.incoming {
  border-left-color: #34a853;
}

.console-entry.error {
  border-left-color: #ea4335;
  background-color: rgba(234, 67, 53, 0.15);
}

/* Expandable console entries */
.console-entry.expandable {
  cursor: pointer;
}

.console-entry.expandable:hover {
  background-color: rgba(255, 255, 255, 0.10);
}

.console-entry.expanded {
  background-color: rgba(255, 255, 255, 0.08);
}

.console-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.375rem;
}

.console-entry-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.console-entry-emoji {
  font-size: 0.9rem;
  line-height: 1;
  display: inline-block;
  user-select: none;
  min-width: 16px;
  text-align: center;
}

.console-expand-icon {
  font-size: 0.6rem;
  color: #858585;
  width: 12px;
  display: inline-block;
  transition: transform 0.2s ease;
  user-select: none;
}

.console-entry-type {
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.console-entry.outgoing .console-entry-type {
  color: #4285f4;
}

.console-entry.incoming .console-entry-type {
  color: #34a853;
}

.console-entry.error .console-entry-type {
  color: #ea4335;
}

.console-entry-author {
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  text-transform: lowercase;
  letter-spacing: 0.3px;
  border: 1px solid;
}

/* Default style (for agents) */
.console-entry-author {
  background-color: rgba(156, 220, 254, 0.15);
  color: #9cdcfe;
  border-color: rgba(156, 220, 254, 0.3);
}

/* User author badge */
.console-entry-author[data-author="user"] {
  background-color: rgba(66, 133, 244, 0.2);
  color: #80b3ff;
  border-color: rgba(66, 133, 244, 0.4);
}

/* System author badge */
.console-entry-author[data-author="system"] {
  background-color: rgba(133, 133, 133, 0.2);
  color: #b0b0b0;
  border-color: rgba(133, 133, 133, 0.3);
}

.console-entry-timestamp {
  color: #858585;
  font-size: 0.65rem;
}

.console-entry-content {
  color: #d4d4d4;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.7rem;
  line-height: 1.4;
  padding-left: 2.5rem; /* Indent to align with header after emoji and icon */
}

.console-entry-content:empty {
  display: none;
}

/* Style for quoted text in summaries (transcriptions, text responses) */
.console-entry-content::first-line {
  color: #e0e0e0;
}

.console-entry-json {
  background-color: #252526;
  padding: 0.5rem;
  border-radius: 0.25rem;
  margin-top: 0.5rem;
  overflow-x: auto;
  max-height: 400px;
  overflow-y: auto;
  transition: all 0.3s ease;
}

.console-entry-json.collapsed {
  display: none;
}

.console-entry-json pre {
  margin: 0;
  color: #9cdcfe;
}

/* Highlight key fields in JSON */
.json-key {
  color: #9cdcfe;
}

.json-string {
  color: #ce9178;
}

.json-number {
  color: #b5cea8;
}

.json-boolean {
  color: #569cd6;
}

.json-null {
  color: #569cd6;
}

/* Console scrollbar */
.console-content::-webkit-scrollbar {
  width: 8px;
}

.console-content::-webkit-scrollbar-track {
  background: #1e1e1e;
}

.console-content::-webkit-scrollbar-thumb {
  background: #3e3e3e;
  border-radius: 4px;
}

.console-content::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}

/* JSON scrollbar */
.console-entry-json::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.console-entry-json::-webkit-scrollbar-track {
  background: #1e1e1e;
}

.console-entry-json::-webkit-scrollbar-thumb {
  background: #3e3e3e;
  border-radius: 3px;
}

.console-entry-json::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}

/* Responsive Design - Tablet */
@media (max-width: 768px) {
  header {
    padding: 1rem clamp(1rem, 4vw, 1.5rem);
    padding-top: calc(1rem + var(--safe-top));
  }

  .connection-status {
    right: clamp(0.5rem, 2vw, 1rem);
  }

  .main-layout {
    flex-direction: column;
  }

  .console-panel {
    max-height: 300px;
    border-top: 1px solid var(--border-color);
  }

  .container {
    border-right: none;
  }

  .input-wrapper {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}

/* Responsive Design - Phone */
@media (max-width: 480px) {
  header {
    padding: 0.75rem 1rem;
    padding-top: calc(0.75rem + var(--safe-top));
  }

  header h1 {
    font-size: 1.15rem;
    line-height: 1.25;
  }

  header .subtitle {
    font-size: 0.7rem;
    margin-top: 0.25rem;
  }

  .connection-status {
    position: static;
    margin-top: 0.5rem;
    justify-content: center;
  }

  .agent-presence {
    padding: 1rem;
    min-height: 200px;
    gap: 0.75rem;
  }

  .agent-avatar {
    width: 56px;
    height: 56px;
    border-width: 3px;
  }

  .agent-icon {
    font-size: 1.75rem;
  }

  .agent-status-text {
    font-size: 0.9375rem;
  }

  .agent-welcome {
    width: 75vw;
    max-width: 90%;
    margin: 0 auto;
    padding: 0 0.5rem;
    font-size: clamp(0.7rem, 3.5vw, 0.875rem);
    line-height: 1.5;
    text-align: center;
    box-sizing: border-box;
    align-self: center;
    display: block;
  }

  #messages {
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }

  .bubble {
    max-width: 90%;
    padding: 0.625rem 0.875rem;
  }

  .system-message {
    padding: 0.5rem 0.75rem;
    margin: 0.5rem 0;
    font-size: 0.75rem;
  }

  .input-container {
    padding: 0.75rem 1rem;
    padding-bottom: calc(0.75rem + var(--safe-bottom));
  }

  .input-wrapper {
    gap: 0.5rem;
  }

  button {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    min-height: 48px;
  }
}

/* Loading state */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}