:root {
  --navy: #1f2a44;
  --navy-2: #2b3a5c;
  --accent: #0f766e;
  --accent-dark: #0b5c56;
  --bg: #f3f5f9;
  --card: #ffffff;
  --text: #1b2333;
  --muted: #667085;
  --line: #dde2ea;
  --ok: #157347;
  --ok-bg: #e3f4ea;
  --warn: #8a5a00;
  --warn-bg: #fff3d6;
  --bad: #b42318;
  --bad-bg: #fde8e6;
  --info: #1d4ed8;
  --info-bg: #e5edff;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.45; }
a { color: var(--accent-dark); }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }

/* ---------- shell ---------- */
.topbar { background: var(--navy); color: #fff; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem; padding: .6rem 1.25rem; }
.brand { color: #fff; font-weight: 700; font-size: 1.2rem; text-decoration: none; letter-spacing: .3px; }
.brand span { color: #5eead4; }
.topbar nav { display: flex; flex-wrap: wrap; gap: .25rem; flex: 1; }
.topbar nav a { color: #cbd5e8; text-decoration: none; padding: .4rem .75rem; border-radius: 6px; font-size: .95rem; }
.topbar nav a:hover { background: var(--navy-2); color: #fff; }
.topbar nav a[aria-current="page"] { background: var(--accent); color: #fff; }
.userbox { display: flex; align-items: center; gap: .9rem; font-size: .92rem; }
.userbox a { color: #fff; text-decoration: none; }
.role { background: #5eead4; color: #0b3b36; border-radius: 999px; padding: .05rem .55rem; font-size: .75rem; font-weight: 600; margin-left: .35rem; }
.bell { position: relative; display: inline-flex; align-items: center; gap: .3rem; }
.badge { background: #ef4444; color: #fff; border-radius: 999px; min-width: 1.35rem; padding: 0 .4rem; text-align: center; font-size: .75rem; font-weight: 700; }
.badge.zero { background: #64748b; }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }

/* ---------- building blocks ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1.25rem; margin-bottom: 1.25rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.15rem; }
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 2rem; font-weight: 700; line-height: 1.2; }
.stat .value.small { font-size: 1.05rem; font-weight: 600; }
.stat .sub { color: var(--muted); font-size: .8rem; }

.btn { border: 1px solid var(--line); background: #fff; color: var(--text); padding: .5rem .95rem; border-radius: 7px; font: inherit; cursor: pointer; text-decoration: none; display: inline-block; }
.btn:hover { background: #eef1f6; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.small { padding: .25rem .6rem; font-size: .85rem; }
.btn.link { border: none; background: none; color: #cbd5e8; padding: .3rem .5rem; }
.btn.link:hover { color: #fff; background: var(--navy-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.form { max-width: 560px; }
.field { display: flex; flex-direction: column; gap: .3rem; margin-bottom: .95rem; }
.field label { font-weight: 600; font-size: .9rem; }
.field small { color: var(--muted); }
input, select, textarea { font: inherit; padding: .5rem .65rem; border: 1px solid #b8c0cf; border-radius: 7px; background: #fff; color: var(--text); width: 100%; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, a:focus-visible { outline: 3px solid #99e6dc; outline-offset: 1px; }
.row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: flex-end; margin-bottom: 1rem; }
.row .field { margin-bottom: 0; flex: 1 1 170px; }

.summary { display: flex; gap: 1rem; margin: 0 0 1rem; }
.summary div { background: #f1f5f9; border-radius: 8px; padding: .55rem .9rem; }
.summary dt { color: var(--muted); font-size: .8rem; }
.summary dd { margin: 0; font-weight: 700; font-size: 1.25rem; }

.alert { border-radius: 8px; padding: .65rem .9rem; margin: .5rem 0 1rem; border: 1px solid transparent; }
.alert.success { background: var(--ok-bg); color: var(--ok); border-color: #b6e2c8; }
.alert.error { background: var(--bad-bg); color: var(--bad); border-color: #f5c0bb; }
.alert.info { background: var(--info-bg); color: var(--info); border-color: #c1d2ff; }
.alert.warn { background: var(--warn-bg); color: var(--warn); border-color: #f3dc9d; }
.alert:empty { display: none; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 1rem; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th, td { text-align: left; padding: .6rem .85rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f7f9fc; font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); white-space: nowrap; }
tr:last-child td { border-bottom: none; }
tfoot td { background: #f7f9fc; font-weight: 700; }
th button { all: unset; cursor: pointer; text-transform: uppercase; letter-spacing: .4px; }
th button:focus-visible { outline: 3px solid #99e6dc; }
td.num, th.num { text-align: right; }
.empty { text-align: center; padding: 2rem 1rem; color: var(--muted); }

.pill { display: inline-block; border-radius: 999px; padding: .1rem .6rem; font-size: .78rem; font-weight: 600; }
.pill.Pending { background: var(--warn-bg); color: var(--warn); }
.pill.Approved, .pill.active { background: var(--ok-bg); color: var(--ok); }
.pill.Rejected, .pill.inactive { background: var(--bad-bg); color: var(--bad); }
.pill.Cancelled { background: #e8ebf1; color: #475467; }

.pager { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.muted { color: var(--muted); }
.actions { display: flex; gap: .4rem; flex-wrap: wrap; }

/* ---------- notifications ---------- */
.notes { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: .6rem; }
.notes li { background: var(--card); border: 1px solid var(--line); border-radius: 9px; padding: .75rem 1rem; display: flex; justify-content: space-between; gap: 1rem; }
.notes li.unread { border-left: 4px solid var(--accent); background: #f1fbf9; }
.notes time { color: var(--muted); font-size: .8rem; white-space: nowrap; }

/* ---------- modal ---------- */
.overlay { position: fixed; inset: 0; background: rgba(16, 24, 40, .55); display: flex; align-items: center; justify-content: center; padding: 1rem; z-index: 50; }
.modal { background: #fff; border-radius: 12px; padding: 1.4rem; width: min(480px, 100%); box-shadow: 0 20px 50px rgba(0, 0, 0, .3); }
.modal-actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; background: linear-gradient(160deg, var(--navy) 0%, #34476f 100%); }
.login-card { background: #fff; border-radius: 14px; padding: 2rem; width: min(440px, 100%); box-shadow: 0 25px 60px rgba(0, 0, 0, .35); }
.login-card h1 { margin-bottom: .2rem; }
.login-card .tag { color: var(--muted); margin: 0 0 1.25rem; }
.login-card button[type="submit"] { width: 100%; padding: .7rem; }
.demo { margin-top: 1.25rem; border-top: 1px solid var(--line); padding-top: 1rem; font-size: .85rem; }
.demo table { font-size: .82rem; }
.demo th, .demo td { padding: .3rem .4rem; }
.demo code { background: #eef1f6; padding: .05rem .3rem; border-radius: 4px; }

.access-denied { background: var(--bad-bg); border: 1px solid #f5c0bb; color: var(--bad); border-radius: 10px; padding: 1.5rem; max-width: 560px; }
.access-denied h1 { color: var(--bad); }

@media (max-width: 640px) {
  .userbox { width: 100%; justify-content: space-between; }
  .summary { flex-direction: column; }
  th, td { padding: .5rem .55rem; }
}