:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --sidebar-bg: #111827;
  --sidebar-text: #cbd5e1;
  --sidebar-text-active: #ffffff;
  --sidebar-active-bg: #1f2937;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-bg: #eef2ff;
  --green: #16a34a;
  --green-bg: #f0fdf4;
  --amber: #d97706;
  --amber-bg: #fffbeb;
  --red: #dc2626;
  --red-bg: #fef2f2;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; min-height: 100%;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

#app { display: flex; flex-direction: column; min-height: 100vh; }

/* ---------- Demo banner (non-dismissible) ---------- */
.demo-banner {
  background: #7f1d1d; color: #fecaca; padding: 8px 20px; font-size: 12.5px; font-weight: 700;
  letter-spacing: 0.03em; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; text-align: center;
  justify-content: center;
}
.demo-banner .dot { width: 7px; height: 7px; border-radius: 50%; background: #fecaca; display: inline-block; margin-right: 6px; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 24px; padding: 10px 20px;
  background: var(--surface); border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.topbar .brand { font-weight: 700; font-size: 16px; color: var(--text); margin-right: 8px; white-space: nowrap; cursor: pointer; }
.topbar .brand span { color: var(--primary); }
.topbar .spacer { flex: 1; }
.topbar .tag { font-size: 12px; color: var(--text-muted); }

/* ---------- Layout ---------- */
.body-row { display: flex; flex: 1; min-height: 0; }
.sidebar {
  width: 220px; background: var(--sidebar-bg); color: var(--sidebar-text); flex-shrink: 0;
  overflow-y: auto; padding: 14px 0;
}
.sidebar .group-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: #6b7280; padding: 14px 18px 6px;
}
.sidebar a {
  display: flex; align-items: center; gap: 10px; padding: 9px 18px; color: var(--sidebar-text);
  text-decoration: none; font-size: 13.5px; cursor: pointer; border-left: 3px solid transparent;
}
.sidebar a:hover { background: rgba(255,255,255,0.04); color: #fff; }
.sidebar a.active { background: var(--sidebar-active-bg); color: var(--sidebar-text-active); border-left-color: var(--primary); font-weight: 600; }

.main { flex: 1; overflow-y: auto; padding: 22px 28px 60px; }
.page-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; flex-wrap: wrap; gap: 10px; }
.page-header h1 { font-size: 20px; margin: 0; }
.page-header p { color: var(--text-muted); margin: 4px 0 0; font-size: 13px; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1300px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 860px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } .sidebar { display: none; } }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 12px; font-size: 13.5px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-card .value { font-size: 26px; font-weight: 700; line-height: 1.1; }
.kpi-card .label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.section-title { font-size: 15px; font-weight: 700; margin: 26px 0 12px; }
.section-title:first-child { margin-top: 0; }

/* ---------- Tables ---------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-faint);
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
table.data-table td { padding: 10px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: var(--surface-alt); }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: 0.02em; }
.badge.green { background: var(--green-bg); color: var(--green); }
.badge.amber { background: var(--amber-bg); color: var(--amber); }
.badge.red { background: var(--red-bg); color: var(--red); }
.badge.gray { background: var(--surface-alt); color: var(--text-muted); border: 1px solid var(--border); }
.badge.blue { background: var(--primary-bg); color: var(--primary-dark); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 7px; font-size: 13px;
  font-weight: 600; cursor: pointer; border: 1px solid transparent; background: var(--surface-alt); color: var(--text);
}
.btn:hover { filter: brightness(0.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: transparent; border-color: var(--border); }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ---------- Empty / loading / error states ---------- */
.state-box {
  border: 1px dashed var(--border); border-radius: var(--radius); padding: 30px; text-align: center;
  color: var(--text-muted); background: var(--surface-alt);
}
.state-box.error { border-color: #fecaca; background: var(--red-bg); color: #991b1b; }
.spinner {
  width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%;
  display: inline-block; animation: spin 0.7s linear infinite; vertical-align: middle; margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.state-box h4 { margin: 0 0 6px; font-size: 14px; color: var(--text); }

/* ---------- Chat (AI Analyst) ---------- */
.chat-wrap { display: flex; flex-direction: column; height: calc(100vh - 220px); min-height: 420px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.chat-log { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.chat-msg { max-width: 78%; padding: 12px 15px; border-radius: 12px; font-size: 13.5px; line-height: 1.5; }
.chat-msg.user { align-self: flex-end; background: var(--primary); color: #fff; border-bottom-right-radius: 3px; }
.chat-msg.agent { align-self: flex-start; background: var(--surface-alt); border: 1px solid var(--border); border-bottom-left-radius: 3px; }
.chat-msg.agent.blocked { background: var(--red-bg); border-color: #fecaca; }
.chat-suggestions { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 20px 14px; }
.chip { background: var(--surface-alt); border: 1px solid var(--border); border-radius: 999px; padding: 6px 12px; font-size: 12.5px; cursor: pointer; }
.chip:hover { background: var(--primary-bg); border-color: var(--primary); color: var(--primary-dark); }
.chat-input-row { display: flex; gap: 10px; padding: 14px; border-top: 1px solid var(--border); }
.chat-input-row input { flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 13.5px; }

/* ---------- Stepper (governance / change set) ---------- */
.stepper { display: flex; flex-wrap: wrap; gap: 0; margin: 10px 0 22px; }
.step { flex: 1; min-width: 130px; padding: 10px 12px; border: 1px solid var(--border); background: var(--surface-alt); font-size: 12px; font-weight: 600; text-align: center; }
.step.PASS, .step.SKIPPED { background: var(--green-bg); color: var(--green); border-color: #bbf7d0; }
.step.BLOCKED, .step.FAIL { background: var(--red-bg); color: var(--red); border-color: #fecaca; }

.kv { display: grid; grid-template-columns: 200px 1fr; gap: 8px 14px; font-size: 13px; }
.kv dt { color: var(--text-muted); }
.kv dd { margin: 0; }

/* ---------- Landing / hero ---------- */
.hero { padding: 60px 40px; text-align: center; background: linear-gradient(180deg, #eef2ff 0%, var(--bg) 100%); }
.hero h1 { font-size: 32px; margin: 0 0 10px; }
.hero p.lead { font-size: 16px; color: var(--text-muted); max-width: 640px; margin: 0 auto 22px; }
.hero .cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 20px; }

.timeline { border-left: 2px solid var(--border); padding-left: 18px; margin-left: 6px; }
.timeline-item { position: relative; padding-bottom: 18px; }
.timeline-item::before { content: ""; position: absolute; left: -23px; top: 4px; width: 9px; height: 9px; border-radius: 50%; background: var(--primary); }

.tech-details summary { cursor: pointer; color: var(--text-muted); font-size: 12px; }
.tech-details pre { background: var(--surface-alt); padding: 10px; border-radius: 8px; font-size: 11.5px; overflow-x: auto; white-space: pre-wrap; }

a.link { color: var(--primary); text-decoration: none; cursor: pointer; }
a.link:hover { text-decoration: underline; }

.hidden { display: none !important; }
.text-muted { color: var(--text-muted); }
.small { font-size: 12px; }