:root {
  --bg: #0f172a;
  --panel: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f1f5f9;
  color: var(--text);
}

header.topbar {
  background: var(--bg);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

header.topbar a, header.topbar .brand {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

header.topbar nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
header.topbar nav a { opacity: 0.85; font-weight: 500; }
header.topbar nav a.active, header.topbar nav a:hover { opacity: 1; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.container.narrow { max-width: 480px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

h1 { font-size: 1.6rem; margin: 0 0 6px; }
h2 { font-size: 1.2rem; margin: 0 0 16px; }
p.subtitle { color: var(--muted); margin: 0 0 24px; }

label { display: block; font-weight: 600; font-size: 0.85rem; margin: 14px 0 6px; }

.checkbox-list { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.checkbox-list label {
  display: flex; align-items: center; gap: 6px;
  font-weight: 500; font-size: 0.9rem; margin: 0;
}
.checkbox-list input[type="checkbox"] { width: auto; }
label:first-child { margin-top: 0; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}

input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.row { display: flex; gap: 14px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 160px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f8fafc; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 6px 12px; font-size: 0.85rem; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

.actions { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }

.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
tr:hover td { background: #f8fafc; }

.cell-input {
  width: 100%;
  min-width: 80px;
  padding: 4px 6px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  font-size: 0.9rem;
  font-family: inherit;
}
.cell-input:hover { border-color: var(--border); }
.cell-input:focus { border-color: var(--accent); background: #fff; outline: none; }
.cell-input.error { border-color: var(--danger); }
.cell-name-group { display: flex; gap: 4px; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge.yes { background: #dcfce7; color: var(--success); }
.badge.no { background: #f1f5f9; color: var(--muted); }
.badge.self { background: #dbeafe; color: var(--accent-dark); }
.badge.upload { background: #fef3c7; color: #b45309; }

.stats { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; min-width: 140px; }
.stat .num { font-size: 1.8rem; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; }

.msg { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 0.9rem; }
.msg.error { background: #fee2e2; color: var(--danger); }
.msg.success { background: #dcfce7; color: var(--success); }

.empty { color: var(--muted); padding: 20px 0; text-align: center; }

.event-list { display: flex; flex-direction: column; gap: 12px; }
.event-item { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border: 1px solid var(--border); border-radius: 8px; flex-wrap: wrap; gap: 10px; }
.event-item .meta { color: var(--muted); font-size: 0.85rem; }

.landing-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.landing-links a.btn { padding: 16px 28px; font-size: 1.05rem; }

footer.note { text-align: center; color: var(--muted); font-size: 0.8rem; margin-top: 30px; }