:root {
  --bg: #f4f1ea;
  --ink: #1c1917;
  --muted: #78716c;
  --card: #fffcf7;
  --line: #e7e0d5;
  --accent: #0f766e;
  --danger: #b91c1c;
  --ok: #166534;
  --soon: #fef3c7;
  --overdue: #fee2e2;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.08), transparent 40%),
    var(--bg);
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 252, 247, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
}
.brand a { font-weight: 700; color: var(--ink); font-size: 1.1rem; }
.top nav { display: flex; gap: 1rem; align-items: center; }
.top nav a.active { font-weight: 600; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.wrap.narrow { max-width: 640px; }

h1 { margin: 0 0 1rem; font-size: 1.6rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.row-between, .row { display: flex; align-items: center; gap: 0.75rem; }
.row-between { justify-content: space-between; }
.gap { gap: 0.75rem; }
.inline { display: inline; margin: 0; }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
.flash.ok { background: #dcfce7; color: var(--ok); }
.flash.err { background: #fee2e2; color: var(--danger); }

.card, .table-wrap, .list {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
  align-items: end;
}
.filters label, .stack label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
}
input, select, textarea, button, .btn {
  font: inherit;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: white;
}
button, .btn { cursor: pointer; }
button.primary, .btn.primary, a.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  text-decoration: none;
  display: inline-block;
}
button.ok { background: #dcfce7; color: var(--ok); border-color: #bbf7d0; }
button.danger { background: #fee2e2; color: var(--danger); border-color: #fecaca; }
button.linkish {
  border: none;
  background: transparent;
  color: var(--accent);
  padding: 0;
}

.stack { display: flex; flex-direction: column; gap: 0.85rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.7rem 0.5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
tr.soon { background: var(--soon); }
tr.overdue { background: var(--overdue); }
.actions { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; white-space: nowrap; }

.list { list-style: none; margin: 1rem 0 0; padding: 0; }
.list li { padding: 0.75rem 1rem; border-bottom: 1px solid var(--line); }
.list li:last-child { border-bottom: none; }

.login-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 1rem;
}
.login-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 20px 50px rgba(28, 25, 23, 0.08);
}

@media (max-width: 800px) {
  .table-wrap { overflow-x: auto; }
  .grid-2 { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: flex-start; }
}