:root {
  --green: #1f7a3f;
  --green-dark: #145c2e;
  --orange: #e67e22;
  --bg: #f3f7f4;
  --card: #ffffff;
  --text: #1a2e22;
  --muted: #6b7c72;
  --border: #d7e3db;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: linear-gradient(160deg, #eef8f1 0%, #fff8f0 50%, #f3f7f4 100%);
  color: var(--text);
}
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card, .card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  width: min(420px, 100%);
  box-shadow: 0 10px 30px rgba(31, 122, 63, 0.08);
}
.login-card h1 { margin: 0 0 4px; color: var(--green-dark); }
.muted { color: var(--muted); }
label { display: block; margin: 12px 0 6px; font-size: 14px; }
input, select, textarea, button {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font: inherit;
}
button, .btn {
  background: var(--green);
  color: #fff;
  border: none;
  cursor: pointer;
  margin-top: 14px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
button:hover, .btn:hover { background: var(--green-dark); }
.btn-orange { background: var(--orange); }
.alert {
  background: #ffe8e0;
  color: #8a3b16;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 10px 0;
}
.ok {
  background: #e5f6ea;
  color: var(--green-dark);
  padding: 10px 12px;
  border-radius: 10px;
  margin: 10px 0;
}
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, var(--green-dark), #0f3d22);
  color: #fff;
  padding: 20px 14px;
}
.brand { font-weight: 700; font-size: 18px; margin-bottom: 18px; padding: 0 8px; }
.sidebar a {
  display: block;
  color: #e8f6ec;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 4px;
}
.sidebar a:hover { background: rgba(255,255,255,0.12); }
.content { padding: 20px 24px 40px; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.topbar h1 { margin: 0; font-size: 22px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.stat span { color: var(--muted); display: block; }
.stat strong { font-size: 28px; color: var(--green-dark); }
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 14px; overflow: hidden; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: right; font-size: 14px; }
th { background: #eef6f1; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 900px; }
.form-grid .full { grid-column: 1 / -1; }
.toolbar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}