:root {
  --bg: #0f1420; --panel: #171e2e; --panel2: #1e2740; --line: #2a3348;
  --text: #e7ecf5; --muted: #8b96ac; --accent: #4f9cff; --accent2: #6ee7b7;
  --pay: #34d399; --defer: #fbbf24; --skip: #f87171; --part: #60a5fa;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.5;
}
a { color: var(--accent); }
h1, h2, h3 { margin: 0 0 .5rem; font-weight: 650; }
button {
  font: inherit; cursor: pointer; border: none; border-radius: 8px;
  padding: .55rem 1rem; background: var(--accent); color: #04101f; font-weight: 600;
}
button.ghost { background: var(--panel2); color: var(--text); border: 1px solid var(--line); }
button.small { padding: .3rem .6rem; font-size: .85rem; }
button.danger { background: #3a1f26; color: #ffb3b3; }
input, select, textarea {
  font: inherit; background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: .5rem .6rem; width: 100%;
}
label { display: block; font-size: .8rem; color: var(--muted); margin: .5rem 0 .2rem; }
.row { display: flex; gap: .75rem; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 120px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; margin-bottom: 1rem; }
.muted { color: var(--muted); }
.pill { display: inline-block; padding: .12rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.pill.pay { background: rgba(52,211,153,.16); color: var(--pay); }
.pill.part_pay { background: rgba(96,165,250,.16); color: var(--part); }
.pill.defer { background: rgba(251,191,36,.16); color: var(--defer); }
.pill.skip { background: rgba(248,113,113,.16); color: var(--skip); }
.pill.scheduled { background: rgba(110,231,183,.14); color: var(--accent2); }
.pill.prepaid { background: rgba(79,156,255,.16); color: var(--accent); }
.pill.reserve { background: rgba(148,163,184,.18); color: #cbd5e1; }
.pill.allowance { background: rgba(110,231,183,.16); color: var(--accent2); }
.pill.done { background: rgba(52,211,153,.14); color: var(--pay); }

/* layout */
header.topbar {
  display: flex; align-items: center; gap: 1.2rem; padding: .8rem 1.2rem;
  background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
}
header.topbar .brand { font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em; }
header.topbar nav { display: flex; gap: .3rem; flex: 1; flex-wrap: wrap; }
header.topbar nav a { padding: .35rem .8rem; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 600; }
header.topbar nav a.active { background: var(--panel2); color: var(--text); }
main { max-width: 940px; margin: 1.4rem auto; padding: 0 1.2rem; }

/* login */
.login-wrap { max-width: 360px; margin: 12vh auto; }

/* pay run lines */
.payline { display: flex; align-items: center; gap: .8rem; padding: .8rem; border: 1px solid var(--line); border-radius: 10px; margin-bottom: .6rem; background: var(--panel2); }
.payline .amt { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.05rem; min-width: 92px; text-align: right; }
.payline .body { flex: 1; }
.payline .label { font-weight: 650; }
.payline .reason { font-size: .82rem; color: var(--muted); }
.payline .payto { font-size: .78rem; color: var(--accent2); margin-top: .15rem; }
.payline input[type=checkbox] { width: 20px; height: 20px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .8rem; }
.stat { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: .8rem; }
.stat .k { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.stat .v { font-size: 1.4rem; font-weight: 750; font-variant-numeric: tabular-nums; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .5rem; border-bottom: 1px solid var(--line); font-size: .9rem; }
th { color: var(--muted); font-weight: 600; }
.warn { background: rgba(248,113,113,.12); border: 1px solid rgba(248,113,113,.3); color: #ffc9c9; padding: .6rem .8rem; border-radius: 8px; margin-bottom: .8rem; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.err { color: var(--skip); font-size: .85rem; margin-top: .5rem; min-height: 1rem; }
.right { text-align: right; }