/* O1 Design Tokens — aligned with @o1/www precious metal + ROYGBIV palette */
:root {
  /* Space backgrounds */
  --space-black: #0a0a0f;
  --space-deep: #0d0f18;
  --space-mid: #1a1d29;
  --space-surface: #22252f;

  /* Precious metals — primary text/accent system */
  --silver-primary: #e8e8e8;
  --silver-light: #f5f5f7;
  --silver-dark: #c0c0c0;
  --silver-muted: #888899;
  --platinum: #e5e4e2;
  --gold: #cfb53b;
  --gold-light: rgba(207, 181, 59, 0.6);
  --gold-accent: rgba(207, 181, 59, 0.3);
  --gold-subtle: rgba(207, 181, 59, 0.15);
  --gold-glow: rgba(207, 181, 59, 0.22);
  --copper: #d4925a;
  --copper-glow: rgba(212, 146, 90, 0.34);
  --copper-accent: rgba(212, 146, 90, 0.22);
  --copper-subtle: rgba(212, 146, 90, 0.12);
  --palladium: #e2e6eb;
  --palladium-glow: rgba(226, 230, 235, 0.3);
  --palladium-border: rgba(226, 230, 235, 0.18);

  /* ROYGBIV spectrum — for UI accents and generative components */
  --spectrum-red: #fb7185;
  --spectrum-orange: #fb923c;
  --spectrum-yellow: #fbbf24;
  --spectrum-green: #34d399;
  --spectrum-blue: #60a5fa;
  --spectrum-indigo: #a78bfa;
  --spectrum-violet: #c084fc;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.02);
  --glass-bg-hover: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-display: 'Teko', sans-serif;
  --font-body: 'Ubuntu', system-ui, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, monospace;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

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

html {
  background-color: var(--space-deep);
  color: var(--silver-primary);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  height: 100%;
}

body {
  min-height: 100vh;
  height: 100%;
  overflow: hidden;
  position: relative;
  background-color: var(--space-deep);
}

/* Multi-spectrum atmospheric background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(
      ellipse 70% 35% at 50% -10%,
      rgba(212, 146, 90, 0.05) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 50% 40% at -8% 35%,
      rgba(96, 165, 250, 0.04) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse 50% 40% at 108% 55%,
      rgba(167, 139, 250, 0.04) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse 60% 30% at 50% 110%,
      rgba(52, 211, 153, 0.03) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 40% 30% at 80% 20%,
      rgba(207, 181, 59, 0.025) 0%,
      transparent 50%
    );
  pointer-events: none;
  z-index: 0;
  animation: nebula-drift 30s ease-in-out infinite;
}

@keyframes nebula-drift {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.85;
  }
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(
    ellipse 100% 80% at 50% 40%,
    black 30%,
    transparent 100%
  );
}

::selection {
  background: rgba(212, 146, 90, 0.3);
  color: var(--silver-light);
}

/* App Layout */
.app-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.app-header {
  flex-shrink: 0;
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
  position: relative;
}

.app-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--spectrum-red) 10%,
    var(--spectrum-orange) 25%,
    var(--spectrum-yellow) 35%,
    var(--spectrum-green) 50%,
    var(--spectrum-blue) 65%,
    var(--spectrum-indigo) 80%,
    var(--spectrum-violet) 90%,
    transparent 100%
  );
  opacity: 0.3;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.new-chat-btn {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--silver-muted);
  padding: 4px 12px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass-bg);
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    color 0.2s ease;
}

.new-chat-btn:hover {
  border-color: var(--copper-accent);
  color: var(--silver-light);
}

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

.brand-mark {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  background: linear-gradient(
    135deg,
    var(--palladium),
    var(--gold),
    var(--copper)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.brand-label {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--silver-muted);
  font-weight: 400;
  letter-spacing: 0.5px;
}

.header-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--silver-muted);
  padding: 4px 12px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass-bg);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--spectrum-green);
  box-shadow: 0 0 6px rgba(52, 211, 153, 0.4);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

/* Chat Area */
.chat-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.chat-area::-webkit-scrollbar {
  width: 6px;
}

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

.chat-area::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

/* Welcome Message */
.welcome-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
  padding: 40px 20px;
  gap: 16px;
}

.welcome-message.hidden {
  display: none;
}

.welcome-icon {
  color: var(--gold);
  opacity: 0.7;
  margin-bottom: 8px;
}

.welcome-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  background: linear-gradient(
    135deg,
    var(--platinum),
    var(--silver-light),
    var(--gold),
    var(--copper)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.welcome-desc {
  color: var(--silver-muted);
  font-size: 0.95rem;
  max-width: 500px;
  line-height: 1.6;
}

.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
  max-width: 600px;
}

.suggestion-chip {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--silver-dark);
  padding: 8px 16px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.suggestion-chip:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--silver-light);
  transform: translateY(-1px);
}

.suggestion-chip:nth-child(7n + 1):hover {
  border-color: rgba(251, 113, 133, 0.3);
}
.suggestion-chip:nth-child(7n + 2):hover {
  border-color: rgba(251, 146, 60, 0.3);
}
.suggestion-chip:nth-child(7n + 3):hover {
  border-color: rgba(251, 191, 36, 0.3);
}
.suggestion-chip:nth-child(7n + 4):hover {
  border-color: rgba(52, 211, 153, 0.3);
}
.suggestion-chip:nth-child(7n + 5):hover {
  border-color: rgba(96, 165, 250, 0.3);
}
.suggestion-chip:nth-child(7n + 6):hover {
  border-color: rgba(167, 139, 250, 0.3);
}
.suggestion-chip:nth-child(7n + 7):hover {
  border-color: rgba(192, 132, 252, 0.3);
}

/* Messages */
.messages {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.message {
  display: flex;
  gap: 12px;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-avatar {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
}

.message.user .message-avatar {
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.2),
    rgba(139, 92, 246, 0.2)
  );
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.message.assistant .message-avatar {
  background: linear-gradient(
    135deg,
    var(--copper-subtle),
    rgba(226, 230, 235, 0.06)
  );
  border: 1px solid var(--copper-accent);
  color: var(--copper);
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-role {
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.message.user .message-role {
  color: #60a5fa;
}

.message.assistant .message-role {
  color: var(--copper);
}

.message-body {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--silver-primary);
}

.message.user .message-body {
  color: var(--silver-light);
}

.message-body p {
  margin-bottom: 8px;
}

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

.message-body code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  padding: 2px 6px;
  border-radius: 4px;
}

.message-body pre {
  background: var(--space-black);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin: 12px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
}

.message-body strong {
  color: var(--silver-light);
  font-weight: 500;
}

.message-body ul,
.message-body ol {
  padding-left: 20px;
  margin: 8px 0;
}

.message-body li {
  margin-bottom: 4px;
}

/* Generative UI Components */
.gen-ui-card {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 12px 0;
  backdrop-filter: blur(8px);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.gen-ui-card:hover {
  border-color: var(--glass-border-hover);
}

.gen-ui-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.82rem;
}

.gen-ui-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--glass-border);
  color: var(--silver-muted);
  font-weight: 500;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
}

.gen-ui-table thead tr {
  border-bottom: 1px solid transparent;
  background-image:
    linear-gradient(var(--space-mid), var(--space-mid)),
    linear-gradient(
      90deg,
      var(--spectrum-blue),
      var(--spectrum-indigo),
      var(--spectrum-violet)
    );
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.gen-ui-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--silver-primary);
}

.gen-ui-table tr:last-child td {
  border-bottom: none;
}

.gen-ui-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.gen-ui-stat {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  margin: 4px;
  transition: border-color 0.2s ease;
}

.gen-ui-stat:nth-child(4n + 1) {
  border-color: var(--gold-accent);
}
.gen-ui-stat:nth-child(4n + 1) .gen-ui-stat-value {
  color: var(--gold);
}
.gen-ui-stat:nth-child(4n + 2) {
  border-color: rgba(196, 205, 214, 0.2);
}
.gen-ui-stat:nth-child(4n + 2) .gen-ui-stat-value {
  color: #c4cdd6;
}
.gen-ui-stat:nth-child(4n + 3) {
  border-color: var(--copper-accent);
}
.gen-ui-stat:nth-child(4n + 3) .gen-ui-stat-value {
  color: var(--copper);
}
.gen-ui-stat:nth-child(4n + 4) {
  border-color: var(--palladium-border);
}
.gen-ui-stat:nth-child(4n + 4) .gen-ui-stat-value {
  color: var(--palladium);
}

.gen-ui-stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--platinum);
  line-height: 1;
}

.gen-ui-stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--silver-muted);
  margin-top: 4px;
}

.gen-ui-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.gen-ui-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  background: rgba(226, 230, 235, 0.08);
  color: var(--palladium);
  border: 1px solid var(--palladium-border);
  margin: 2px 4px 2px 0;
}

.gen-ui-tag.red {
  background: rgba(251, 113, 133, 0.1);
  color: var(--spectrum-red);
  border-color: rgba(251, 113, 133, 0.25);
}

.gen-ui-tag.orange {
  background: rgba(251, 146, 60, 0.1);
  color: var(--spectrum-orange);
  border-color: rgba(251, 146, 60, 0.25);
}

.gen-ui-tag.yellow {
  background: rgba(251, 191, 36, 0.1);
  color: var(--spectrum-yellow);
  border-color: rgba(251, 191, 36, 0.25);
}

.gen-ui-tag.green {
  background: rgba(52, 211, 153, 0.1);
  color: var(--spectrum-green);
  border-color: rgba(52, 211, 153, 0.25);
}

.gen-ui-tag.blue {
  background: rgba(96, 165, 250, 0.1);
  color: var(--spectrum-blue);
  border-color: rgba(96, 165, 250, 0.25);
}

.gen-ui-tag.indigo {
  background: rgba(167, 139, 250, 0.1);
  color: var(--spectrum-indigo);
  border-color: rgba(167, 139, 250, 0.25);
}

.gen-ui-tag.violet {
  background: rgba(192, 132, 252, 0.1);
  color: var(--spectrum-violet);
  border-color: rgba(192, 132, 252, 0.25);
}

.gen-ui-tag.gold {
  background: var(--gold-subtle);
  color: var(--gold);
  border-color: var(--gold-accent);
}

.gen-ui-tag.copper {
  background: var(--copper-subtle);
  color: var(--copper);
  border-color: var(--copper-accent);
}

.gen-ui-list {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}

.gen-ui-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  background: var(--glass-bg);
  transition: all 0.2s ease;
}

.gen-ui-list-item:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.gen-ui-list-item-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--copper);
  flex-shrink: 0;
}

.gen-ui-list-item:nth-child(7n + 1) .gen-ui-list-item-icon {
  background: var(--spectrum-red);
}
.gen-ui-list-item:nth-child(7n + 2) .gen-ui-list-item-icon {
  background: var(--spectrum-orange);
}
.gen-ui-list-item:nth-child(7n + 3) .gen-ui-list-item-icon {
  background: var(--spectrum-yellow);
}
.gen-ui-list-item:nth-child(7n + 4) .gen-ui-list-item-icon {
  background: var(--spectrum-green);
}
.gen-ui-list-item:nth-child(7n + 5) .gen-ui-list-item-icon {
  background: var(--spectrum-blue);
}
.gen-ui-list-item:nth-child(7n + 6) .gen-ui-list-item-icon {
  background: var(--spectrum-indigo);
}
.gen-ui-list-item:nth-child(7n + 7) .gen-ui-list-item-icon {
  background: var(--spectrum-violet);
}

.gen-ui-list-item-text {
  font-size: 0.85rem;
}

.gen-ui-list-item-subtext {
  font-size: 0.75rem;
  color: var(--silver-muted);
}

/* Loading indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 0;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--silver-muted);
  animation: typing-bounce 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing-bounce {
  0%,
  60%,
  100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

.status-text {
  font-size: 0.75rem;
  color: var(--silver-muted);
  margin-bottom: 8px;
  font-style: italic;
}

/* Query info */
.query-info {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  color: var(--silver-muted);
}

.query-info code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--silver-dark);
}

/* Input Area */
.input-area {
  flex-shrink: 0;
  padding: 16px 0 20px;
  border-top: 1px solid var(--glass-border);
}

.input-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
  backdrop-filter: blur(8px);
}

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

.input-wrapper textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--silver-light);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.5;
  resize: none;
  max-height: 120px;
  min-height: 24px;
}

.input-wrapper textarea::placeholder {
  color: var(--silver-muted);
  opacity: 0.7;
}

.send-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--copper), var(--gold));
  color: var(--space-black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  opacity: 0.5;
}

.send-btn:not(:disabled) {
  opacity: 1;
}

.send-btn:not(:disabled):hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--copper-glow);
}

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

.input-hint {
  font-size: 0.7rem;
  color: var(--silver-muted);
  opacity: 0.6;
  text-align: center;
}

/* Error state */
.message-error {
  color: #fb7185;
  background: rgba(251, 113, 133, 0.08);
  border: 1px solid rgba(251, 113, 133, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
}

/* Streaming cursor */
.streaming-cursor::after {
  content: '▊';
  animation: blink 1s step-end infinite;
  color: var(--spectrum-blue);
  margin-left: 2px;
}

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

/* Responsive */
@media (max-width: 640px) {
  .app-container {
    padding: 0 12px;
  }

  .welcome-title {
    font-size: 2rem;
  }

  .suggestions {
    gap: 6px;
  }

  .suggestion-chip {
    font-size: 0.75rem;
    padding: 6px 12px;
  }

  .gen-ui-stats-row {
    flex-direction: column;
  }

  .gen-ui-table {
    font-size: 0.75rem;
  }
}