:root {
  --bg: #f4f1ea;
  --ink: #1c2b1a;
  --muted: #5c6b57;
  --card: #fffdf8;
  --line: #d9d0c0;
  --green: #2f6b3a;
  --green-dark: #1e4a28;
  --green-soft: #e7f3e8;
  --debt: #b42318;
  --overpay: #17663a;
  --shadow: 0 10px 30px rgba(28, 43, 26, 0.08);
  --radius: 16px;
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  padding: 14px 22px;
  background: var(--green-dark);
  color: #fff;
}
.brand { color: #fff; font-weight: 700; font-size: 1.15rem; letter-spacing: .02em; }
.brand:hover { text-decoration: none; color: #e7f3e8; }
.nav { display: flex; gap: 14px; flex-wrap: wrap; }
.nav a { color: #d7ead9; }
.nav a:hover { color: #fff; }
.who { margin-left: auto; font-size: .9rem; opacity: .9; }

.wrap { width: min(1100px, calc(100% - 32px)); margin: 24px auto 48px; }
.foot { text-align: center; color: var(--muted); padding: 24px; font-size: .85rem; }

.hero, .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 18px;
}
h1 { margin: 0 0 8px; font-size: 1.55rem; }
h2 { margin: 0 0 12px; font-size: 1.15rem; }
.muted { color: var(--muted); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

label { display: block; font-size: .9rem; margin: 0 0 6px; color: var(--muted); }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  background: #fff;
}
.field { margin-bottom: 14px; }

.btn {
  display: inline-block;
  border: 0;
  background: var(--green);
  color: #fff;
  padding: 10px 16px;
  border-radius: 10px;
  font: inherit;
  cursor: pointer;
}
.btn:hover { background: var(--green-dark); text-decoration: none; color: #fff; }
.btn-ghost { background: transparent; color: var(--green); border: 1px solid var(--green); }
.btn-ghost:hover { background: var(--green-soft); color: var(--green-dark); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.alert { padding: 10px 12px; border-radius: 10px; margin-bottom: 14px; }
.alert-err { background: #fdecea; color: #8a1f16; }
.alert-ok { background: var(--green-soft); color: var(--green-dark); }
.alert-warn { background: #fff6e5; color: #7a4d00; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  margin: 12px 0 16px;
}
.stat {
  background: var(--green-soft);
  border-radius: 12px;
  padding: 10px 12px;
}
.stat span { display: block; color: var(--muted); font-size: .78rem; }
.stat strong { font-size: 1.05rem; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}
.tab.is-on { background: var(--green); color: #fff; border-color: var(--green); text-decoration: none; }

.dl { display: grid; grid-template-columns: 180px 1fr; gap: 8px 16px; }
@media (max-width: 640px) { .dl { grid-template-columns: 1fr; } }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; font-weight: 600; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td {
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}
table.data th { color: var(--muted); font-weight: 600; font-size: .8rem; }
.is-debt { color: var(--debt); font-weight: 700; }
.is-overpay { color: var(--overpay); font-weight: 700; }

.search { margin-bottom: 14px; }

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, #cfe8d2 0, transparent 40%),
    linear-gradient(160deg, #1e4a28 0%, #2f6b3a 45%, #8aa56a 100%);
}
.login-card {
  width: min(460px, 100%);
  background: var(--card);
  border-radius: 20px;
  padding: 28px 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}
.login-card h1 { color: var(--green-dark); }
.login-choices { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.login-choice { width: 100%; text-align: center; }
.badge {
  display: inline-block;
  background: var(--green-soft);
  color: var(--green-dark);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: .75rem;
}