/* AI Employee dashboard — design system (2026-08-23 rewrite).
   Light/dark via prefers-color-scheme; no build step, no framework —
   see main.py's module docstring for why (master §23's "don't
   over-invest in UI" framing, now revisited once real LLM decisions
   exist to actually watch). */

:root {
  --bg: #f6f7f9;
  --bg-elevated: #ffffff;
  --border: #e3e6eb;
  --text: #14181f;
  --text-muted: #667085;
  --text-faint: #98a2b3;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;

  --status-running: #2563eb;
  --status-running-bg: #eff6ff;
  --status-waiting: #d97706;
  --status-waiting-bg: #fffbeb;
  --status-completed: #059669;
  --status-completed-bg: #ecfdf5;
  --status-failed: #dc2626;
  --status-failed-bg: #fef2f2;
  --status-escalated: #7c3aed;
  --status-escalated-bg: #f5f3ff;

  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f13;
    --bg-elevated: #171a21;
    --border: #262b35;
    --text: #e6e9ef;
    --text-muted: #9aa3b2;
    --text-faint: #6b7280;
    --accent: #818cf8;
    --accent-soft: #1e1b3a;

    --status-running: #60a5fa;
    --status-running-bg: #10203a;
    --status-waiting: #fbbf24;
    --status-waiting-bg: #3a2a06;
    --status-completed: #34d399;
    --status-completed-bg: #062e22;
    --status-failed: #f87171;
    --status-failed-bg: #3a0d0d;
    --status-escalated: #a78bfa;
    --status-escalated-bg: #241a3f;

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

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

code, .mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

/* --- Layout ------------------------------------------------------- */

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

header.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  margin-bottom: 28px;
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 650;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--status-completed);
  box-shadow: 0 0 0 3px var(--status-completed-bg);
}
.brand .dot.stale { background: var(--text-faint); box-shadow: none; }

nav.tabs { display: flex; gap: 4px; }
nav.tabs a {
  padding: 7px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
}
nav.tabs a:hover { background: var(--accent-soft); text-decoration: none; }
nav.tabs a.active { background: var(--accent-soft); color: var(--accent); }

.spacer { flex: 1; }

.live-indicator {
  font-size: 12.5px;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 6px;
}
.live-indicator .pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--status-completed);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

h1 { font-size: 22px; font-weight: 650; margin: 0 0 4px; }
h2 { font-size: 16px; font-weight: 650; margin: 0 0 14px; }
.subtitle { color: var(--text-muted); font-size: 14px; margin: 0 0 24px; }

/* --- Cards / stat grid --------------------------------------------- */

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.stat-card {
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.stat-card .stat-value { font-size: 26px; font-weight: 700; line-height: 1.1; }
.stat-card .stat-label { font-size: 12.5px; color: var(--text-muted); margin-top: 4px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.02em; }

.stat-card.running { background: var(--status-running-bg); }
.stat-card.running .stat-value { color: var(--status-running); }
.stat-card.waiting { background: var(--status-waiting-bg); }
.stat-card.waiting .stat-value { color: var(--status-waiting); }
.stat-card.completed { background: var(--status-completed-bg); }
.stat-card.completed .stat-value { color: var(--status-completed); }
.stat-card.failed { background: var(--status-failed-bg); }
.stat-card.failed .stat-value { color: var(--status-failed); }
.stat-card.escalated { background: var(--status-escalated-bg); }
.stat-card.escalated .stat-value { color: var(--status-escalated); }
.stat-card.neutral { background: var(--bg-elevated); }

/* --- Attention panel (WAITING_HUMAN tasks) -------------------------- */

.attention-panel {
  border: 1px solid var(--status-waiting);
  background: var(--status-waiting-bg);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 28px;
}
.attention-panel h2 { color: var(--status-waiting); display: flex; align-items: center; gap: 8px; }
.attention-item {
  padding: 10px 0;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.attention-item:first-of-type { border-top: none; }
.attention-item .q { font-size: 14px; margin: 4px 0 6px; }
.attention-item .meta { font-size: 12.5px; color: var(--text-muted); }
.attention-empty { color: var(--text-muted); font-size: 14px; padding: 4px 0; }

/* --- Tables --------------------------------------------------------- */

.section { margin-bottom: 28px; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.data th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  font-weight: 600;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
table.data td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.data tr:last-child td { border-bottom: none; }
table.data tr.clickable { cursor: pointer; }
table.data tr.clickable:hover { background: var(--accent-soft); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.badge.running { background: var(--status-running-bg); color: var(--status-running); }
.badge.waiting_human { background: var(--status-waiting-bg); color: var(--status-waiting); }
.badge.completed { background: var(--status-completed-bg); color: var(--status-completed); }
.badge.failed { background: var(--status-failed-bg); color: var(--status-failed); }
.badge.pending, .badge.planning { background: var(--status-running-bg); color: var(--status-running); }

.filter-tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-tabs a {
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.filter-tabs a.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.filter-tabs a:hover:not(.active) { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* --- Task detail ------------------------------------------------------ */

.task-header {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  flex-wrap: wrap; margin-bottom: 18px;
}
.request-text {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 24px;
}
.error-box {
  background: var(--status-failed-bg);
  border: 1px solid var(--status-failed);
  color: var(--status-failed);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  margin-bottom: 24px;
}
.waiting-box {
  background: var(--status-waiting-bg);
  border: 1px solid var(--status-waiting);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 24px;
}
.waiting-box .label { font-size: 12.5px; font-weight: 700; text-transform: uppercase; color: var(--status-waiting); margin-bottom: 6px; }
.waiting-box .question { font-size: 14.5px; }

.step-list { display: flex; flex-direction: column; gap: 10px; }
.step {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  background: var(--bg-elevated);
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: start;
}
.step-index {
  width: 26px; height: 26px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  background: var(--accent-soft); color: var(--accent);
}
.step-index.completed { background: var(--status-completed-bg); color: var(--status-completed); }
.step-index.failed { background: var(--status-failed-bg); color: var(--status-failed); }
.step-index.pending { background: var(--bg); color: var(--text-faint); }
.step-body .desc { font-weight: 600; font-size: 14px; margin-bottom: 2px; }
.step-body .tool-line { font-size: 12.5px; color: var(--text-muted); }
.step-body .args, .step-body .result {
  margin-top: 6px;
  font-size: 12.5px;
  background: var(--bg);
  border-radius: 6px;
  padding: 8px 10px;
  max-height: 160px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-muted);
}
.step-badge { align-self: center; }

.timeline { display: flex; flex-direction: column; }
.timeline-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item .ts { color: var(--text-faint); font-size: 12.5px; padding-top: 1px; }

.empty-state { color: var(--text-muted); font-size: 14px; padding: 24px 0; text-align: center; }

@media (max-width: 640px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .step { grid-template-columns: 24px 1fr; }
  .step-badge { grid-column: 1 / -1; }
  .timeline-item { grid-template-columns: 70px 1fr; }
}