:root {
  --bg: #0f1729;
  --bg-2: #1a2540;
  --panel: #ffffff;
  --ink: #1f2937;
  --ink-soft: #6b7280;
  --line: #e5e7eb;
  --brand: #1d4ed8;
  --brand-dark: #1e3a8a;
  --green: #15803d;
  --green-bg: #dcfce7;
  --red: #b91c1c;
  --red-bg: #fee2e2;
  --amber: #b45309;
  --amber-bg: #fef3c7;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(15, 23, 41, 0.08);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: #f4f6fb; line-height: 1.55; }
a { color: var(--brand); }

/* ---------- Login ---------- */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--bg), var(--bg-2));
}
.auth-card {
  width: 100%;
  max-width: 26rem;
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.2rem 2rem;
}
.auth-card h1 { margin: 0 0 .2rem; font-size: 1.5rem; }
.auth-card .sub { color: var(--ink-soft); margin: 0 0 1.4rem; font-size: .92rem; }
.brand-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; color: var(--brand-dark); margin-bottom: 1rem;
}
.brand-badge .dot {
  width: 1.7rem; height: 1.7rem; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #3b82f6);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: .9rem;
}

/* ---------- Layout (app) ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  color: #fff;
  display: flex; align-items: center; gap: 1rem;
  padding: .7rem 1.1rem;
}
.topbar .brand { font-weight: 700; display: flex; align-items: center; gap: .55rem; }
.topbar .brand .dot {
  width: 1.5rem; height: 1.5rem; border-radius: 7px;
  background: linear-gradient(135deg, var(--brand), #3b82f6);
  display: inline-flex; align-items: center; justify-content: center; font-size: .85rem;
}
.topbar nav { display: flex; gap: .3rem; flex-wrap: wrap; margin-left: .5rem; }
.topbar nav a {
  color: #cbd5e1; text-decoration: none; padding: .4rem .7rem;
  border-radius: 8px; font-size: .9rem; white-space: nowrap;
}
.topbar nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.topbar nav a.active { background: var(--brand); color: #fff; }
.topbar .spacer { flex: 1; }
.topbar .who { font-size: .85rem; color: #cbd5e1; }
.topbar button.logout {
  background: rgba(255,255,255,.12); color: #fff; border: 0;
  padding: .45rem .8rem; border-radius: 8px; cursor: pointer; font-size: .85rem;
}
.topbar button.logout:hover { background: rgba(255,255,255,.22); }

.menu-toggle { display: none; background: none; border: 0; color: #fff; font-size: 1.4rem; cursor: pointer; }

main { max-width: 1080px; margin: 0 auto; padding: 1.4rem 1.1rem 4rem; }
.page-head { margin: .4rem 0 1.4rem; }
.page-head h2 { margin: 0; font-size: 1.5rem; }
.page-head p { margin: .3rem 0 0; color: var(--ink-soft); }

/* ---------- Cards / panels ---------- */
.panel {
  background: var(--panel); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.3rem; margin-bottom: 1.3rem;
}
.panel h3 { margin: 0 0 1rem; font-size: 1.1rem; }
.grid { display: grid; gap: 1rem; }
@media (min-width: 720px) { .grid.two { grid-template-columns: 1fr 1fr; } }

/* ---------- Forms ---------- */
label { display: block; font-size: .82rem; font-weight: 600; color: var(--ink-soft); margin-bottom: .3rem; }
input, select, textarea {
  width: 100%; padding: .6rem .7rem; border: 1px solid var(--line);
  border-radius: 10px; font-size: 1rem; font-family: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--brand); }
.field { margin-bottom: .9rem; }
.row-fields { display: grid; gap: .9rem; }
@media (min-width: 640px) { .row-fields.cols-2 { grid-template-columns: 1fr 1fr; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  background: var(--brand); color: #fff; border: 0; padding: .7rem 1.1rem;
  border-radius: 10px; font-size: 1rem; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.btn:disabled { opacity: .6; cursor: default; }
.btn.ghost { background: #eef2ff; color: var(--brand-dark); }
.btn.ghost:hover { background: #e0e7ff; }
.btn.danger { background: var(--red); }
.btn.small { padding: .4rem .7rem; font-size: .85rem; }

.msg { padding: .7rem .9rem; border-radius: 10px; font-size: .9rem; margin: .6rem 0; }
.msg.err { background: var(--red-bg); color: var(--red); }
.msg.ok { background: var(--green-bg); color: var(--green); }

/* ---------- Balance summary ---------- */
.summary { display: grid; gap: .8rem; }
@media (min-width: 720px) { .summary { grid-template-columns: repeat(3, 1fr); } }
.stat {
  border: 1px solid var(--line); border-radius: 12px; padding: .9rem 1rem; background: #fbfcff;
}
.stat .k { font-size: .78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .03em; }
.stat .v { font-size: 1.35rem; font-weight: 700; margin-top: .2rem; }

.balance-bar {
  display: flex; align-items: center; gap: .6rem; flex-wrap: wrap;
  padding: .9rem 1.1rem; border-radius: 12px; font-weight: 600;
}
.balance-bar.ok { background: var(--green-bg); color: var(--green); }
.balance-bar.off { background: var(--amber-bg); color: var(--amber); }
.balance-bar .big { font-size: 1.1rem; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.data th, table.data td { padding: .6rem .65rem; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data th { font-size: .76rem; text-transform: uppercase; letter-spacing: .03em; color: var(--ink-soft); }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr:hover td { background: #f8fafc; }
.pill { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 700; }
.pill.ok { background: var(--green-bg); color: var(--green); }
.pill.off { background: var(--amber-bg); color: var(--amber); }

.muted { color: var(--ink-soft); }
.empty { text-align: center; color: var(--ink-soft); padding: 2.5rem 1rem; }
.link-btn { background: none; border: 0; color: var(--brand); cursor: pointer; font-size: .85rem; padding: .2rem .3rem; }
.link-btn.danger { color: var(--red); }

.acct-cards { display: grid; gap: 1rem; }
@media (min-width: 640px) { .acct-cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 940px) { .acct-cards { grid-template-columns: repeat(3, 1fr); } }
.acct-card {
  background: var(--panel); border-radius: 12px; box-shadow: var(--shadow);
  padding: 1.1rem; text-decoration: none; color: inherit; display: block; border: 1px solid transparent;
}
.acct-card:hover { border-color: #bfdbfe; }
.acct-card .nm { font-weight: 700; }
.acct-card .ref { font-size: .8rem; color: var(--ink-soft); }
.acct-card .bal { font-size: 1.4rem; font-weight: 700; margin-top: .6rem; }
.acct-card .bal.neg { color: var(--red); }

@media (max-width: 700px) {
  .menu-toggle { display: block; }
  .topbar nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: var(--bg); padding: .5rem;
  }
  .topbar nav.open { display: flex; }
  .topbar .who { display: none; }
}