app/frontend/styles.css

:root {
  --bg: #f3efe6;
  --panel: rgba(255, 252, 247, 0.9);
  --ink: #1e1c19;
  --muted: #6f655c;
  --accent: #0e5a8a;
  --accent-soft: #d2ecff;
  --line: rgba(30, 28, 25, 0.12);
  --warm: #d76a34;
  --shadow: 0 20px 60px rgba(34, 25, 16, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(14, 90, 138, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(215, 106, 52, 0.18), transparent 26%),
    linear-gradient(180deg, #f8f4ec 0%, var(--bg) 100%);
}

.page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 24px 48px;
}

.hero {
  max-width: 760px;
  margin-bottom: 28px;
}

.compact {
  margin: 0;
}

.auth-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.auth-actions,
.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--accent);
}

h1, h2 {
  margin: 0;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.95;
}

.lede {
  margin: 18px 0 0;
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 60ch;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.composer {
  margin-bottom: 16px;
}

.label,
.controls span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.92rem;
  color: var(--muted);
}

textarea,
input {
  width: 100%;
  border: 1px solid rgba(30, 28, 25, 0.16);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  background: rgba(255, 255, 255, 0.72);
}

textarea {
  resize: vertical;
  min-height: 132px;
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

button {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 14px 20px;
  font: inherit;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--accent), #123954);
  cursor: pointer;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--accent), #123954);
}

.pill-link.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
}

.pill-link.is-disabled {
  pointer-events: none;
  opacity: 0.45;
}

button:disabled {
  opacity: 0.5;
  cursor: wait;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
}

.status-detail,
.muted,
.placeholder {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}

.jobs-panel {
  grid-column: 1 / -1;
}

.answer-panel,
.trace-panel,
.heatmap-panel,
.details-panel {
  min-height: 260px;
}

.answer-panel,
.trace-panel {
  grid-column: span 1;
}

.heatmap-panel,
.details-panel {
  grid-column: span 1;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 16px;
}

.sentence-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 420px;
  overflow: auto;
}

.sentence-item {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid transparent;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.45);
  cursor: pointer;
}

.sentence-item:hover,
.sentence-item.is-active {
  border-color: rgba(14, 90, 138, 0.25);
  background: rgba(210, 236, 255, 0.5);
}

.sentence-item strong {
  display: inline-block;
  min-width: 2.5rem;
  color: var(--accent);
}

.heatmap {
  display: grid;
  gap: 4px;
  overflow: auto;
  min-height: 300px;
}

.heatmap-grid {
  display: grid;
  gap: 4px;
}

.heatmap-cell {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.4);
  cursor: pointer;
  position: relative;
}

.heatmap-cell.is-selected {
  outline: 2px solid var(--ink);
}

.placeholder-box {
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 18px;
}

.metric-card,
.edge-card {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.45);
  border: 1px solid var(--line);
  margin-top: 10px;
}

.recent-sessions {
  display: grid;
  gap: 10px;
}

.session-card {
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.48);
  padding: 14px;
  cursor: pointer;
  text-align: left;
}

.session-card.is-active {
  border-color: rgba(14, 90, 138, 0.25);
  background: rgba(210, 236, 255, 0.42);
}

.session-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent);
}

.metric-card strong,
.edge-card strong {
  display: block;
  color: var(--accent);
}

@media (max-width: 960px) {
  .auth-strip,
  .grid,
  .controls {
    grid-template-columns: 1fr;
  }

  .auth-strip {
    align-items: flex-start;
  }
}