/* Growth Analytics Agent — portfolio aesthetic
   white bg, black text, muted #6b6b7b, accent #1a1a2e,
   Inter for body, Playfair Display for display.
*/

:root {
  --bg: #ffffff;
  --text: #1a1a2e;
  --muted: #6b6b7b;
  --accent: #1a1a2e;
  --border: #e5e5ea;
  --bubble-user: #1a1a2e;
  --bubble-user-text: #ffffff;
  --bubble-agent: #f5f5f7;
  --code-bg: #f5f5f7;
  --error: #b00020;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 16px;
}

#dashboard {
  margin-bottom: 48px;
}

/* KPI row */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
}

.kpi {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--bg);
}

.kpi-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 6px;
}

.kpi-value {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.3px;
}

.kpi-period {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.kpi-delta {
  margin-top: 4px;
  font-size: 13px;
  font-weight: 500;
}

.kpi-delta.up { color: #0a7d34; }
.kpi-delta.down { color: #b00020; }
.kpi-delta.neutral { color: var(--muted); }

/* Dashboard charts */
.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .chart-grid { grid-template-columns: 1fr; }
}

.chart-card.large .plot {
  min-height: 320px;
}

/* Events timeline */
.events-timeline {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  background: var(--bg);
}

.events-timeline h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
}

.event-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.event-item:last-child { border-bottom: none; }

.event-date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.event-desc strong {
  font-weight: 600;
}

.back-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 32px;
  font-size: 14px;
}

.back-links a {
  color: var(--muted);
  text-decoration: none;
  width: fit-content;
}

.back-links a:hover {
  color: var(--accent);
}

header h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 40px;
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}

.tagline {
  color: var(--muted);
  max-width: 640px;
  margin: 0 0 40px;
}

#chat {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  background: var(--bg);
}

#history {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 200px;
}

#history:empty::before {
  content: "Your conversation will appear here.";
  color: var(--muted);
  font-style: italic;
}

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

.message.user .bubble {
  background: var(--bubble-user);
  color: var(--bubble-user-text);
  align-self: flex-end;
  border-radius: 18px 18px 4px 18px;
}

.message.agent .bubble {
  background: var(--bubble-agent);
  color: var(--text);
  align-self: flex-start;
  border-radius: 18px 18px 18px 4px;
}

.bubble {
  max-width: 90%;
  padding: 12px 16px;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 15px;
}

.bubble strong {
  font-weight: 600;
}

.outputs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

/* Charts */
.chart-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: var(--bg);
}

.chart-card .plot {
  width: 100%;
  min-height: 360px;
}

/* Tables */
.table-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--bg);
  overflow-x: auto;
}

.table-card h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

table th, table td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

table th {
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

/* Summary panel */
.summary-card {
  border-left: 3px solid var(--accent);
  background: var(--bubble-agent);
  border-radius: 8px;
  padding: 16px 20px;
}

.summary-card h3 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}

.summary-card ul {
  margin: 0 0 12px;
  padding-left: 20px;
}

.summary-card ul:last-child { margin-bottom: 0; }

.summary-card li {
  margin-bottom: 6px;
  font-size: 14px;
}

/* Composer */
#composer {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

#question {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
}

#question:focus {
  outline: none;
  border-color: var(--accent);
}

#send {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: var(--bg);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
}

#send:hover { opacity: 0.9; }
#send:disabled {
  opacity: 0.5;
  cursor: wait;
}

/* Suggestions */
#suggestions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

.suggest-label {
  color: var(--muted);
  font-size: 13px;
  margin-right: 4px;
}

.suggest {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}

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

/* Per-question cost footer */
.cost-footer {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  font-family: monospace;
  letter-spacing: 0.3px;
}

/* Tool-call status pills (streaming) */
.tool-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.tool-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bubble-agent);
  font-size: 12px;
  font-family: monospace;
  color: var(--muted);
}

.tool-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}

.tool-pill.running .dot {
  background: #f59e0b;
  animation: pulse 1.2s ease-in-out infinite;
}

.tool-pill.done {
  background: rgba(10, 125, 52, 0.08);
  color: #0a7d34;
}

.tool-pill.done .dot { background: #0a7d34; }

.tool-pill.error {
  background: rgba(176, 0, 32, 0.08);
  color: var(--error);
}

.tool-pill.error .dot { background: var(--error); }

.tool-pill .tool-name {
  color: var(--text);
  font-weight: 500;
}

.bubble.streaming::after {
  content: "▍";
  color: var(--muted);
  animation: blink 1s steps(2, start) infinite;
  margin-left: 2px;
}

.bubble.streaming:empty {
  background: transparent;
  padding: 4px 0;
}

@keyframes blink {
  to { visibility: hidden; }
}

/* Loading / thinking */
.thinking {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-style: italic;
  font-size: 14px;
}

.thinking .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  animation: pulse 1.4s ease-in-out infinite;
}

.thinking .dot:nth-child(2) { animation-delay: 0.2s; }
.thinking .dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes pulse {
  0%, 80%, 100% { opacity: 0.3; }
  40% { opacity: 1; }
}

/* Error */
.error {
  color: var(--error);
  border-left: 3px solid var(--error);
  padding: 8px 12px;
  background: rgba(176, 0, 32, 0.05);
  border-radius: 4px;
  font-size: 14px;
}

/* Footer */
footer {
  margin-top: 32px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

footer a:hover { border-color: var(--accent); }