:root {
  color-scheme: dark;
  --ink: #f1f5f9;
  --muted: #94a3b8;
  --soft: #64748b;
  --canvas: #0b0f19;
  --paper: #161b26;
  --panel-bg: rgba(22, 27, 38, 0.75);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.15);
  --green: #22c55e;
  --green-soft: rgba(34, 197, 94, 0.15);
  --blue: #38bdf8;
  --blue-soft: rgba(56, 189, 248, 0.15);
  --amber: #f59e0b;
  --amber-soft: rgba(245, 158, 11, 0.15);
  --red: #ef4444;
  --red-soft: rgba(239, 68, 68, 0.15);
  --violet: #a855f7;
  --violet-soft: rgba(168, 85, 247, 0.15);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  font-family: Inter, Pretendard, "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

body {
  min-height: 100vh;
  color: var(--ink);
  background: var(--canvas);
  font-size: 14px;
  line-height: 1.45;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(56, 189, 248, 0.12) 0%, transparent 40%);
  background-attachment: fixed;
}

.topbar {
  position: sticky; z-index: 20; top: 0; display: flex; min-height: 64px; align-items: center; justify-content: space-between; gap: 20px; padding: 10px 40px; color: #fff; background: rgba(11, 15, 25, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; background: linear-gradient(135deg, #6366f1, #38bdf8); border-radius: 8px; font-size: 20px; font-weight: 800; color: #fff; box-shadow: 0 0 15px rgba(99, 102, 241, 0.4); }
.brand strong { display: block; font-size: 16px; font-weight: 700; }
.brand small { display: block; color: var(--muted); font-size: 11px; }

.topbar-actions, .freshness { display: flex; align-items: center; gap: 10px; }
.freshness { font-size: 12px; color: var(--muted); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.status-dot.live { background: var(--green); box-shadow: 0 0 10px var(--green); }

.icon-button { width: 36px; height: 36px; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line); border-radius: 6px; color: #fff; cursor: pointer; display: grid; place-items: center; font-size: 18px; }

main { max-width: 1400px; margin: 0 auto; padding: 30px 40px; display: flex; flex-direction: column; gap: 30px; }

/* Mission Band */
.mission-band { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: center; background: var(--panel-bg); backdrop-filter: blur(16px); border: 1px solid var(--line); border-radius: 16px; padding: 24px 30px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 1px; color: var(--blue); text-transform: uppercase; margin-bottom: 6px; }
.mission-copy h1 { font-size: 20px; font-weight: 650; line-height: 1.35; }
.metric-line { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 8px; }
.progress-track { height: 10px; background: rgba(255, 255, 255, 0.08); border-radius: 5px; overflow: hidden; }
.progress-track span { display: block; height: 100%; background: linear-gradient(90deg, #6366f1, #38bdf8); border-radius: 5px; transition: width 0.6s ease; }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.kpi { background: var(--panel-bg); backdrop-filter: blur(12px); border: 1px solid var(--line); border-radius: 12px; padding: 18px 16px; display: flex; flex-direction: column; gap: 4px; }
.kpi-label { font-size: 12px; color: var(--muted); }
.kpi strong { font-size: 24px; font-weight: 700; font-family: 'JetBrains Mono', monospace; }
.kpi-note { font-size: 11px; color: var(--soft); }

/* Section Bands */
.section-band { background: var(--panel-bg); backdrop-filter: blur(16px); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 20px; }
.section-heading h2 { font-size: 18px; font-weight: 650; }
.section-meta { font-size: 12px; color: var(--green); font-weight: 600; }

.agent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.agent-card { background: rgba(255, 255, 255, 0.02); border: 1px solid var(--line); border-radius: 12px; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.agent-head { display: flex; justify-content: space-between; align-items: center; }
.agent-badge { padding: 4px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; font-family: monospace; }
.badge-active { background: var(--green-soft); color: var(--green); }
.badge-running { background: var(--blue-soft); color: var(--blue); }
.badge-idle { background: rgba(255, 255, 255, 0.05); color: var(--muted); }
.badge-blocked { background: var(--red-soft); color: var(--red); }

/* Activity & Histogram Layout */
.activity-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; padding: 14px; background: rgba(0, 0, 0, 0.2); border-radius: 10px; }
.activity-stat span { display: block; font-size: 11px; color: var(--muted); }
.activity-stat strong { font-size: 18px; font-weight: 700; }

.activity-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.activity-panel { background: rgba(255, 255, 255, 0.02); border: 1px solid var(--line); border-radius: 12px; padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.activity-subheading { display: flex; justify-content: space-between; align-items: flex-start; font-size: 12px; color: var(--muted); }
.activity-subheading strong { font-size: 14px; color: var(--ink); display: block; margin-bottom: 2px; }

/* Stacked Histogram Bar Chart */
.activity-chart-scroll { overflow-x: auto; padding-bottom: 10px; }
.activity-histogram { display: flex; align-items: flex-end; gap: 8px; height: 160px; min-width: 450px; padding-top: 20px; }
.hist-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; position: relative; }
.hist-count { font-size: 10px; color: var(--muted); font-family: monospace; margin-bottom: 4px; }
.hist-bar { width: 100%; max-width: 24px; display: flex; flex-direction: column-reverse; border-radius: 3px; overflow: hidden; background: rgba(255, 255, 255, 0.05); }
.hist-segment { width: 100%; transition: height 0.3s ease; }
.hist-segment.work { background: var(--blue); }
.hist-segment.evidence { background: var(--violet); }
.hist-segment.success { background: var(--green); }
.hist-segment.issue { background: var(--red); }
.hist-segment.planning { background: var(--amber); }
.hist-time { font-size: 10px; color: var(--soft); margin-top: 6px; white-space: nowrap; }

.activity-legend { display: flex; gap: 16px; font-size: 11px; color: var(--muted); margin-top: 10px; }
.activity-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; }
.activity-dot.work { background: var(--blue); }
.activity-dot.evidence { background: var(--violet); }
.activity-dot.success { background: var(--green); }
.activity-dot.issue { background: var(--red); }
.activity-dot.planning { background: var(--amber); }

/* Feed List */
.activity-feed { display: flex; flex-direction: column; gap: 10px; max-height: 320px; overflow-y: auto; padding-right: 4px; }
.feed-group-header { font-size: 12px; font-weight: 700; color: var(--muted); padding: 6px 0 2px; border-bottom: 1px solid var(--line); margin-top: 4px; }
.feed-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: rgba(255, 255, 255, 0.02); border-left: 3px solid var(--blue); border-radius: 0 8px 8px 0; font-size: 12px; }
.feed-item.verified { border-left-color: var(--green); }
.feed-item.submitted { border-left-color: var(--violet); }
.feed-item.blocked { border-left-color: var(--red); }

/* Segmented Control */
.segmented-control { display: flex; background: rgba(0, 0, 0, 0.3); padding: 3px; border-radius: 8px; border: 1px solid var(--line); }
.segment-button { background: transparent; border: none; color: var(--muted); padding: 5px 12px; border-radius: 6px; font-size: 12px; cursor: pointer; }
.segment-button.active { background: rgba(255, 255, 255, 0.1); color: var(--ink); font-weight: 600; }

/* GPU Grid & Charts */
.gpu-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.gpu-card { background: rgba(255, 255, 255, 0.02); border: 1px solid var(--line); border-radius: 10px; padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.chart-band { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.chart-panel { background: var(--panel-bg); backdrop-filter: blur(16px); border: 1px solid var(--line); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.chart-wrap { height: 180px; width: 100%; position: relative; }
.line-chart { width: 100%; height: 100%; }

/* Resource Band */
.resource-band { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.resource-block { background: var(--panel-bg); backdrop-filter: blur(16px); border: 1px solid var(--line); border-radius: 16px; padding: 24px; display: flex; justify-content: space-between; align-items: center; }
.ring-chart { width: 70px; height: 70px; }
.ring-base { fill: none; stroke: rgba(255, 255, 255, 0.08); stroke-width: 10; }
.ring-value { fill: none; stroke: var(--blue); stroke-width: 10; stroke-linecap: round; }
.ring-disk .ring-value { stroke: var(--amber); }
.ring-chart text { fill: var(--ink); font-size: 22px; font-weight: 700; font-family: monospace; }

.resource-details { flex-direction: column; align-items: stretch; gap: 10px; }
.resource-row { display: flex; justify-content: space-between; font-size: 12px; }

/* Directory Table */
.table-wrap { overflow-x: auto; }
.task-table { width: 100%; border-collapse: collapse; text-align: left; }
.task-table th, .task-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 13px; }
.task-table th { color: var(--muted); font-size: 11px; text-transform: uppercase; }

/* Alerts */
.alerts-list { display: flex; flex-direction: column; gap: 10px; }
.alert-item { padding: 14px 18px; border-radius: 10px; font-size: 13px; display: flex; flex-direction: column; gap: 4px; }
.alert-urgent { background: var(--red-soft); border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; }