:root {
  --color-triggered:  #1a7a56;
  --color-missed:     #b83232;
  --color-warning:    #a06010;
  --color-pending:    #999693;
  --color-long:       #1a5a9a;
  --color-short:      #b83232;
  --color-structural: #6a3fa0;
  --ipo-line:         #c4920a;

  --bg:        #f4f5f7;
  --bg-card:   #ffffff;
  --bg-hover:  #f0f1f4;
  --border:    #dde0e8;
  --border-soft: #eaecf0;
  --text:      #1c1f2e;
  --text-muted:#6b7080;
  --text-light:#9aa0b0;
  --accent:    #2563a8;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* --- Header --- */
header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  gap: 16px;
}

.header-left h1 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.header-left .subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Centered nav */
.header-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.header-nav a {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 5px 14px;
  border-radius: 6px;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
  font-weight: 500;
}

.header-nav a:hover {
  background: var(--bg-card);
  color: var(--text);
}

.header-nav a.active {
  background: var(--bg-card);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.price-display {
  text-align: right;
}

.price-display .price {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.price-display .change {
  font-size: 0.8rem;
  margin-left: 6px;
  font-weight: 500;
}

.price-display .change.up   { color: var(--color-triggered); }
.price-display .change.down { color: var(--color-missed); }

.price-display .updated {
  font-size: 0.68rem;
  color: var(--text-light);
  margin-top: 2px;
}

button#refresh-btn {
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.12s;
}

button#refresh-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: #bcc0cc;
}

button#refresh-btn.loading { opacity: 0.5; pointer-events: none; }

/* --- Fetch status bar --- */
.fetch-status {
  display: flex;
  gap: 24px;
  padding: 6px 28px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.fetch-status .fetch-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.fetch-status .fetch-label { color: var(--text-muted); }
.fetch-status .fetch-time  { color: var(--text); font-weight: 500; }

.fetch-status .fetch-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-pending);
  flex-shrink: 0;
}

.fetch-status .fetch-dot.fresh { background: var(--color-triggered); }
.fetch-status .fetch-dot.stale { background: var(--color-warning); }

/* --- Main layout --- */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  height: calc(100vh - 66px);
}

@media (max-width: 900px) {
  .main-layout { grid-template-columns: 1fr; height: auto; }
}

/* --- Chart area --- */
.chart-area {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  background: var(--bg);
}

.chart-wrap {
  flex: 1;
  position: relative;
  min-height: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

canvas#priceChart { width: 100% !important; }

/* --- No-data banner --- */
#no-data-banner {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 14px;
  text-align: center;
}

#no-data-banner .big-date {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--ipo-line);
  letter-spacing: -0.02em;
}

#no-data-banner p {
  color: var(--text-muted);
  max-width: 340px;
  line-height: 1.6;
  font-size: 0.88rem;
}

#countdown {
  font-size: 0.88rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 24px;
}

#countdown span { color: var(--text); font-weight: 600; }

/* --- Sidebar --- */
.sidebar {
  border-left: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg-card);
}

.sidebar-header {
  padding: 14px 18px 10px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  border-bottom: 1px solid var(--border-soft);
}

/* --- Milestone card --- */
.milestone-card {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  transition: background 0.1s;
  position: relative;
}

.milestone-card:hover    { background: var(--bg-hover); }
.milestone-card.expanded { background: var(--bg-hover); }

.milestone-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 0 2px 2px 0;
}

.milestone-card[data-outcome="triggered"]::before { background: var(--color-triggered); }
.milestone-card[data-outcome="missed"]::before    { background: var(--color-missed); }
.milestone-card[data-type="warning"]::before      { background: var(--color-warning); }
.milestone-card[data-outcome="pending"]::before,
.milestone-card[data-outcome="manual"]::before    { background: var(--border); }
.milestone-card[data-type="structural"]::before   { background: var(--color-structural); }

.card-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.card-icon {
  font-size: 0.9rem;
  line-height: 1.5;
  flex-shrink: 0;
  width: 18px;
  text-align: center;
}

.card-body { flex: 1; min-width: 0; }

.card-label {
  font-size: 0.83rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.card-date {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.card-trigger {
  font-size: 0.68rem;
  margin-top: 4px;
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
}

.milestone-card[data-outcome="triggered"] .card-trigger { background: #e8f5ef; color: var(--color-triggered); }
.milestone-card[data-outcome="missed"]    .card-trigger { background: #faeaea; color: var(--color-missed); }
.milestone-card[data-outcome="pending"]   .card-trigger,
.milestone-card[data-outcome="manual"]    .card-trigger { background: var(--bg); color: var(--text-muted); }
.milestone-card[data-type="warning"]      .card-trigger { background: #fdf2e0; color: var(--color-warning); }
.milestone-card[data-type="structural"]   .card-trigger { background: #f3eeff; color: var(--color-structural); }

.card-price {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.card-desc {
  display: none;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-soft);
}

.milestone-card.expanded .card-desc { display: block; }