:root {
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-2: #e8eef6;
  --text: #172033;
  --muted: #5b667a;
  --border: #d6deea;
  --accent: #1f4fd1;
  --accent-strong: #173da5;
  --accent-soft: #e7efff;
  --success: #16835d;
  --danger: #bf3a30;
  --warning: #b26c00;
  --shadow: 0 18px 44px rgba(16, 24, 40, 0.08);
  --radius: 20px;
}

body.dark {
  --bg: #111827;
  --surface: #182233;
  --surface-soft: #0f1726;
  --surface-2: #223047;
  --text: #eff4ff;
  --muted: #b3c0d8;
  --border: #2b3a55;
  --accent: #8fb3ff;
  --accent-strong: #bfd2ff;
  --accent-soft: #1b2842;
  --success: #52d2a2;
  --danger: #ff8b82;
  --warning: #f2b862;
  --shadow: none;
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body.dark { color-scheme: dark; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.site-shell { min-height: 100vh; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand-wrap { display: flex; align-items: center; gap: 1rem; }
.brand-mark {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border: 1px solid var(--border);
  font-size: 1.25rem; font-weight: 800;
}
.brand-copy h1 { margin: 0; font-size: 1.25rem; }
.brand-copy p { margin: 0.2rem 0 0; color: var(--muted); }
.topbar-actions { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.user-badge {
  display: inline-flex; align-items: center; gap: 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  background: var(--surface-soft);
}
.user-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--success); }
.user-copy { display: grid; gap: 0.1rem; }
.user-copy strong { font-size: 0.92rem; }
.user-copy span { color: var(--muted); font-size: 0.8rem; }
.container { max-width: 1180px; margin: 0 auto; padding: 1.5rem; }
.container.narrow { max-width: 980px; }
.two-col { display: grid; grid-template-columns: minmax(280px, 380px) minmax(0, 1fr); gap: 1.5rem; }
.section-stack { display: grid; gap: 1rem; }
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  background: var(--surface);
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.8fr);
  gap: 1rem;
  align-items: stretch;
}
.hero h2 { margin: 0.2rem 0 0.7rem; font-size: 2rem; }
.hero p { margin: 0; }
.hero-panel {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface-soft);
  padding: 1rem;
  display: grid;
  gap: 0.7rem;
  align-content: start;
}
.hero-stat strong { display: block; font-size: 1.35rem; }
.hero-stat span { color: var(--muted); font-size: 0.92rem; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-size: 0.8rem; margin-bottom: 0.2rem; }
.tile-grid { display: grid; gap: 1rem; }
.tile-grid.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tile-grid.four-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tile {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--surface);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.tile:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); }
.tile-head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.tile-icon {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-strong); border: 1px solid var(--border);
  font-size: 1.2rem;
}
.tile-title { font-size: 1.15rem; font-weight: 700; }
.tile-copy { color: var(--muted); line-height: 1.45; }
.tile-meta { color: var(--accent-strong); font-size: 0.9rem; font-weight: 600; }
.subnav { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-bottom: 1rem; }
.subnav a { color: var(--muted); }
.subnav a.active { color: var(--accent-strong); font-weight: 700; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  border-radius: 14px; padding: 0.8rem 1rem; cursor: pointer; font-weight: 600;
}
body.dark .btn { color: #0f1726; }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn.ghost { background: transparent; color: var(--accent-strong); border-color: var(--border); }
.muted { color: var(--muted); }
.notice { padding: 0.95rem 1rem; border-radius: 14px; margin-bottom: 1rem; border: 1px solid var(--border); background: var(--surface); }
.notice.success { border-color: var(--success); }
.notice.error { border-color: var(--danger); }
.notice.info { border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label { display: grid; gap: 0.45rem; margin-bottom: 1rem; font-weight: 600; }
label span.helper { color: var(--muted); font-weight: 400; font-size: 0.88rem; }
input, select, textarea {
  width: 100%; padding: 0.9rem; border-radius: 14px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
textarea { min-height: 132px; resize: vertical; }
.form-intro { margin-bottom: 1rem; }
.form-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.5rem; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.85rem; border-bottom: 1px solid var(--border); }
.case-card { border: 1px solid var(--border); border-radius: 16px; padding: 1rem; margin-bottom: 1rem; background: var(--surface); }
.case-kicker { color: var(--muted); font-size: 0.9rem; }
.action-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem; }
pre { background: var(--surface-soft); border: 1px solid var(--border); padding: 1rem; border-radius: 14px; overflow: auto; }
.hidden { display: none !important; }
.modal-root {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  display: none; align-items: center; justify-content: center; padding: 1.25rem; z-index: 100;
}
.modal-root.open { display: flex; }
.modal-card {
  width: min(520px, 100%); background: var(--surface); border: 1px solid var(--border);
  border-radius: 22px; box-shadow: var(--shadow); padding: 1.2rem;
}
.modal-card h3 { margin-top: 0; margin-bottom: 0.5rem; }
.modal-card p { margin-top: 0; color: var(--muted); }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.75rem; margin-top: 1rem; }
.page-heading { margin-bottom: 1rem; }
.page-heading h2 { margin: 0; }
.footer-note { color: var(--muted); font-size: 0.9rem; margin-top: 1rem; }
@media (max-width: 900px) {
  .two-col, .form-grid, .tile-grid.two-up, .tile-grid.four-up, .hero { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; }
  .brand-wrap { width: 100%; }
}