/* ============================================
   JARVIS v2 — Design Tokens & Theme
   ============================================ */

:root {
  /* Core palette */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2333;
  --bg-elevated: #21262d;

  /* Accent */
  --accent: #58a6ff;
  --accent-glow: rgba(88, 166, 255, 0.15);
  --accent-glow-strong: rgba(88, 166, 255, 0.3);
  --cyan-glow: rgba(56, 211, 255, 0.12);

  /* Mode colors */
  --mode-personal: #58a6ff;
  --mode-consultant: #f0883e;
  --mode-marketing: #a371f7;
  --mode-mba: #3fb950;

  /* Text */
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --text-accent: var(--accent);

  /* Borders */
  --border-default: #30363d;
  --border-subtle: #21262d;

  /* Bubbles */
  --bubble-user: #1a3a5c;
  --bubble-user-border: #264a73;
  --bubble-jarvis: #1c2333;
  --bubble-jarvis-border: #30363d;

  /* Status */
  --status-connected: #3fb950;
  --status-disconnected: #f85149;

  /* Sizing */
  --top-bar-height: 56px;
  --input-area-height: auto;
  --quick-actions-height: 44px;
  --max-chat-width: 800px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Shadows */
  --shadow-glow: 0 0 20px var(--accent-glow), 0 0 60px rgba(88, 166, 255, 0.05);
  --shadow-elevated: 0 4px 12px rgba(0, 0, 0, 0.3);

  /* Typography — system stack */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --text-xs: 0.6875rem;     /* 11px */
  --text-sm: 0.8125rem;     /* 13px */
  --text-base: 0.9375rem;   /* 15px */
  --text-lg: 1.0625rem;     /* 17px */

  --leading-tight: 1.35;
  --leading-normal: 1.55;
}


/* ============================================
   Reset & Base
   ============================================ */

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

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* ============================================
   App Shell
   ============================================ */

.app-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 100dvh;
  overflow: hidden;
}


/* ============================================
   Top Bar
   ============================================ */

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--top-bar-height);
  padding: 0 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
  z-index: 10;
}

.top-bar__left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.top-bar__right {
  display: flex;
  align-items: center;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  animation: logo-pulse 3s ease-in-out infinite;
  filter: drop-shadow(0 0 6px var(--accent-glow-strong));
}

.logo__text {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  text-shadow: 0 0 20px var(--accent-glow-strong);
  animation: text-glow 3s ease-in-out infinite;
}

.logo__version {
  font-weight: 400;
  font-size: var(--text-sm);
  color: var(--accent);
  opacity: 0.8;
}

@keyframes logo-pulse {
  0%, 100% { opacity: 1; filter: drop-shadow(0 0 6px var(--accent-glow-strong)); }
  50% { opacity: 0.85; filter: drop-shadow(0 0 12px var(--accent-glow-strong)) drop-shadow(0 0 24px var(--cyan-glow)); }
}

@keyframes text-glow {
  0%, 100% { text-shadow: 0 0 20px var(--accent-glow); }
  50% { text-shadow: 0 0 30px var(--accent-glow-strong), 0 0 60px var(--cyan-glow); }
}

/* Connection Status */
.connection-status {
  display: flex;
  align-items: center;
  cursor: default;
}

.connection-status__dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--status-connected);
  box-shadow: 0 0 6px var(--status-connected);
  transition: background var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.connection-status--disconnected .connection-status__dot {
  background: var(--status-disconnected);
  box-shadow: 0 0 6px var(--status-disconnected);
}

/* Mode Selector */
.mode-selector {
  position: relative;
}

.mode-selector__select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 6px 32px 6px 12px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238b949e' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.mode-selector__select:hover {
  border-color: var(--accent);
}

.mode-selector__select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.mode-indicator {
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 100%;
  border-radius: 1px;
  background: var(--mode-personal);
  transition: background var(--duration-normal) var(--ease-out);
}


/* ============================================
   Chat Area
   ============================================ */

.chat-area {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

.chat-messages {
  max-width: var(--max-chat-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 8px;
}

/* Messages */
.message {
  display: flex;
  gap: 10px;
  max-width: 85%;
  animation: message-in var(--duration-slow) var(--ease-out) both;
}

@keyframes message-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.message--jarvis {
  align-self: flex-start;
}

.message__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.message--user .message__avatar {
  background: var(--bubble-user);
}

.message__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.message--user .message__content {
  align-items: flex-end;
}

.message__bubble {
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  line-height: var(--leading-normal);
  font-size: var(--text-base);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.message--user .message__bubble {
  background: var(--bubble-user);
  border: 1px solid var(--bubble-user-border);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);
  color: var(--text-primary);
}

.message--jarvis .message__bubble {
  background: var(--bubble-jarvis);
  border: 1px solid var(--bubble-jarvis-border);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
  color: var(--text-primary);
}

.message__time {
  font-size: var(--text-xs);
  color: var(--text-muted);
  padding: 0 4px;
}

/* Markdown content styling inside bubbles */
.message__bubble h1,
.message__bubble h2,
.message__bubble h3 {
  margin-top: 0.8em;
  margin-bottom: 0.3em;
  font-weight: 600;
  line-height: var(--leading-tight);
}

.message__bubble h1 { font-size: 1.15em; }
.message__bubble h2 { font-size: 1.05em; }
.message__bubble h3 { font-size: 1em; color: var(--text-secondary); }

.message__bubble p {
  margin-bottom: 0.5em;
}

.message__bubble p:last-child {
  margin-bottom: 0;
}

.message__bubble ul,
.message__bubble ol {
  margin: 0.3em 0 0.5em 1.2em;
}

.message__bubble li {
  margin-bottom: 0.2em;
}

.message__bubble code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(110, 118, 129, 0.15);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.message__bubble pre {
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  overflow-x: auto;
  margin: 0.5em 0;
  font-size: var(--text-sm);
}

.message__bubble pre code {
  background: none;
  padding: 0;
  border-radius: 0;
}

.message__bubble blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  margin: 0.5em 0;
  color: var(--text-secondary);
}

.message__bubble strong {
  font-weight: 600;
  color: var(--text-primary);
}

.message__bubble a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.message__bubble table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5em 0;
  font-size: var(--text-sm);
}

.message__bubble th,
.message__bubble td {
  padding: 6px 10px;
  border: 1px solid var(--border-default);
  text-align: left;
}

.message__bubble th {
  background: var(--bg-tertiary);
  font-weight: 600;
}


/* Typing Indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: var(--max-chat-width);
  margin: 0 auto;
  padding: 0 16px 8px;
}

.typing-indicator[hidden] {
  display: none;
}

.typing-indicator__dots {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--bubble-jarvis);
  border: 1px solid var(--bubble-jarvis-border);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
}

.typing-indicator__dots span {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: typing-bounce 1.4s ease-in-out infinite;
}

.typing-indicator__dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.typing-indicator__dots span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typing-bounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-5px);
    opacity: 1;
    background: var(--accent);
  }
}


/* ============================================
   Quick Actions
   ============================================ */

.quick-actions {
  display: flex;
  gap: 6px;
  padding: 8px 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
  scrollbar-width: none;
}

.quick-actions::-webkit-scrollbar {
  display: none;
}

.quick-action {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  transition:
    background var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-spring);
}

.quick-action:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.quick-action:active {
  transform: translateY(0) scale(0.97);
}

.quick-action__icon {
  font-size: var(--text-sm);
  line-height: 1;
}

.quick-action__label {
  font-weight: 500;
}


/* ============================================
   Input Area
   ============================================ */

.input-area {
  padding: 0 16px 12px;
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.input-form {
  max-width: var(--max-chat-width);
  margin: 0 auto;
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 4px 4px 4px 14px;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.input-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow), var(--shadow-glow);
}

.input-field {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  padding: 8px 0;
  font-size: var(--text-base);
  color: var(--text-primary);
  line-height: var(--leading-normal);
  max-height: 120px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-default) transparent;
}

.input-field::placeholder {
  color: var(--text-muted);
}

.input-field::-webkit-scrollbar {
  width: 4px;
}

.input-field::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 2px;
}

.send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--bg-primary);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background var(--duration-fast) ease,
    opacity var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-spring);
}

.send-btn:hover:not(:disabled) {
  background: #79bbff;
  transform: scale(1.05);
}

.send-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Attribution */
.attribution {
  text-align: center;
  padding: 6px 0 0;
}

.attribution a {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

.attribution a:hover {
  color: var(--text-secondary);
  text-decoration: underline;
}


/* ============================================
   Toast Notifications
   ============================================ */

#toast-container {
  position: fixed;
  top: 68px;
  right: 16px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 10px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  box-shadow: var(--shadow-elevated);
  pointer-events: auto;
  animation: toast-in var(--duration-normal) var(--ease-out) both;
  max-width: 320px;
}

.toast--error {
  border-color: var(--status-disconnected);
  background: rgba(248, 81, 73, 0.1);
}

.toast--success {
  border-color: var(--status-connected);
  background: rgba(63, 185, 80, 0.1);
}

.toast--leaving {
  animation: toast-out var(--duration-normal) ease-in forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(20px);
  }
}


/* ============================================
   Responsive — Mobile-First Adjustments
   ============================================ */

@media (max-width: 480px) {
  .top-bar {
    padding: 0 12px;
  }

  .logo__text {
    font-size: var(--text-base);
  }

  .chat-area {
    padding: 12px;
  }

  .message {
    max-width: 92%;
  }

  .quick-actions {
    padding: 6px 12px;
  }

  .input-area {
    padding: 0 12px 8px;
  }

  .quick-action__label {
    display: none;
  }

  .quick-action {
    padding: 5px 8px;
  }
}

@media (min-width: 768px) {
  .message {
    max-width: 70%;
  }

  .chat-area {
    padding: 20px 24px;
  }

  .quick-actions {
    justify-content: center;
    padding: 10px 24px;
  }
}

@media (min-width: 1024px) {
  .top-bar {
    padding: 0 24px;
  }

  .message {
    max-width: 65%;
  }
}

/* Scrollbar for chat area */
.chat-area::-webkit-scrollbar {
  width: 6px;
}

.chat-area::-webkit-scrollbar-track {
  background: transparent;
}

.chat-area::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 3px;
}

.chat-area::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.chat-area {
  scrollbar-width: thin;
  scrollbar-color: var(--border-default) transparent;
}