:root {
  --ink: #16212e;
  --ink-soft: #4a5b6c;
  --line: #dfe6ec;
  --bg: #f4f7f9;
  --card: #ffffff;
  --brand: #0f6e5c;
  --brand-dark: #0b4f42;
  --brand-soft: #e4f3ef;
  --danger: #b3261e;
  --danger-soft: #fbe9e7;
  --warn: #8a5a00;
  --warn-soft: #fdf1dc;
  --radius: 10px;
  font-size: 15px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
#app { min-height: 100vh; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--brand-dark); color: #fff;
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.topbar .brand .mark {
  width: 26px; height: 26px; border-radius: 7px; background: #fff;
  color: var(--brand-dark); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px;
}
.topbar nav { display: flex; gap: 4px; }
.topbar nav a {
  color: #d7ece6; text-decoration: none; padding: 8px 14px; border-radius: 7px; font-size: 14px;
  cursor: pointer;
}
.topbar nav a.active, .topbar nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.topbar .who { font-size: 13px; color: #cfe6df; display: flex; align-items: center; gap: 12px; }
.topbar .who button { background: none; border: 1px solid rgba(255,255,255,.35); color: #fff; padding: 5px 10px; border-radius: 6px; cursor: pointer; font-size: 13px; }

main.page { max-width: 1080px; margin: 0 auto; padding: 28px 24px 60px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 12px; }
.sub { color: var(--ink-soft); font-size: 14px; margin: 0 0 20px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 26px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px;
}
.card .num { font-size: 28px; font-weight: 700; }
.card .lbl { color: var(--ink-soft); font-size: 13px; margin-top: 2px; }
.card.overdue .num { color: var(--danger); }
.card.soon .num { color: var(--warn); }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 20px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-soft); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #f7fafa; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.overdue { background: var(--danger-soft); color: var(--danger); }
.badge.due_soon { background: var(--warn-soft); color: var(--warn); }
.badge.ok { background: var(--brand-soft); color: var(--brand-dark); }
.badge.no_schedule { background: #eee; color: #666; }
.badge.retired, .badge.out_of_service { background: #eee; color: #777; }

.toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
input[type=text], input[type=date], input[type=number], input[type=email], input[type=password], select, textarea {
  font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink);
}
textarea { width: 100%; min-height: 70px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 7px;
  border: 1px solid var(--brand); background: var(--brand); color: #fff; font: inherit; cursor: pointer; font-weight: 600;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn.secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.btn.secondary:hover { background: #f2f5f5; }
.btn.danger { background: #fff; color: var(--danger); border-color: #eab4ae; }
.btn.danger:hover { background: var(--danger-soft); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 5px; font-weight: 600; }
.field { margin-bottom: 4px; }
.field input, .field select, .field textarea { width: 100%; }

.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, var(--brand-dark), #0e2f28); }
.auth-card { background: #fff; padding: 34px 32px; border-radius: 14px; width: 340px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.auth-card .mark { width: 40px; height: 40px; border-radius: 10px; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 14px; }
.auth-card h1 { font-size: 20px; }
.auth-card .field { margin-bottom: 14px; }
.auth-card .btn { width: 100%; justify-content: center; margin-top: 4px; }
.error-msg { color: var(--danger); font-size: 13px; margin: 6px 0 0; }
.hint { color: var(--ink-soft); font-size: 13px; margin-top: 14px; }

.empty { color: var(--ink-soft); padding: 30px 0; text-align: center; font-size: 14px; }

.back-link { display: inline-block; margin-bottom: 14px; color: var(--brand-dark); text-decoration: none; font-size: 14px; cursor: pointer; }
.back-link:hover { text-decoration: underline; }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 24px; font-size: 14px; margin-bottom: 8px; }
.detail-grid dt { color: var(--ink-soft); }
.detail-grid dd { margin: 0 0 8px; }

dialog { border: none; border-radius: 12px; padding: 0; max-width: 560px; width: 92vw; }
dialog::backdrop { background: rgba(15,25,20,.45); }
dialog .dialog-inner { padding: 22px 24px; }
dialog h2 { margin-bottom: 16px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }