:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #dde1e6;
  --color-text: #1f2430;
  --color-muted: #6b7280;
  --color-primary: #2f6f4f;
  --color-primary-dark: #24593f;
  --color-danger: #b3261e;
  --color-warning: #8a6d00;
  --radius: 6px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 24px;
}

.topnav-brand { font-weight: 700; color: var(--color-primary-dark); }

.topnav nav { display: flex; gap: 16px; flex: 1; }

.topnav nav a {
  color: var(--color-text);
  text-decoration: none;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
}

.topnav nav a:hover { border-bottom-color: var(--color-primary); }

.topnav-logout { display: flex; align-items: center; gap: 8px; margin: 0; }
.topnav-logout span, .topnav-logout a { color: var(--color-muted); font-size: 13px; text-decoration: none; }
.topnav-logout a:hover { text-decoration: underline; }

h1 { font-size: 22px; margin: 0 0 20px; }
h2 { font-size: 17px; margin: 24px 0 10px; }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.card-link {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: var(--color-text);
}

.card-link:hover { border-color: var(--color-primary); }
.card-link .title { font-weight: 600; margin-bottom: 4px; }
.card-link .desc { color: var(--color-muted); font-size: 13px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  text-decoration: none;
  color: var(--color-text);
}

.stat-card .stat-value { font-size: 22px; font-weight: 700; }
.stat-card .stat-label { color: var(--color-muted); font-size: 13px; margin-top: 4px; }

.stat-card-link:hover { border-color: var(--color-primary); }
.stat-card-danger .stat-value { color: var(--color-danger); }
.stat-card-primary .stat-value { color: var(--color-primary); }

.table-scroll {
  width: 100%;
  overflow-x: auto;
}

.table-scroll th, .table-scroll td {
  padding: 5px 6px;
  font-size: 12.5px;
  white-space: nowrap;
}

.table-scroll td:nth-child(2),
.table-scroll td:nth-child(10),
.table-scroll td:nth-child(11),
.table-scroll td:nth-child(12) { white-space: normal; }

.table-scroll td:nth-child(2) { max-width: 190px; }
.table-scroll td:nth-child(12) { min-width: 200px; }

.table-scroll button, .table-scroll .button {
  padding: 3px 6px;
  font-size: 12px;
  white-space: nowrap;
}

.table-scroll input[type=text] {
  padding: 4px 6px;
  font-size: 12px;
  width: 55px;
  max-width: 55px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

th { background: #eef1ee; font-weight: 600; }
tbody tr:nth-child(even) { background: #fafbfa; }
tbody tr:hover { background: #f0f4f1; }

input[type=text], input[type=number], input[type=password], input[type=email], input[type=date], input[type=month], select, textarea {
  padding: 7px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  width: 100%;
  max-width: 320px;
}

td input[type=number] { max-width: 140px; }

label { display: block; margin: 10px 0 4px; font-weight: 500; font-size: 13px; }

button, .button {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

button:hover, .button:hover { background: var(--color-primary-dark); }
button.secondary, .button.secondary { background: var(--color-muted); }
button.danger, .button.danger { background: var(--color-danger); }

.actions { display: flex; gap: 8px; align-items: center; }
.actions form { margin: 0; }

.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 14px; font-size: 14px; }
.flash-success { background: #e4f4e8; color: #1c5e34; border: 1px solid #bfe4c8; }
.flash-error { background: #fbe8e6; color: var(--color-danger); border: 1px solid #f2c3bd; }
.flash-warning { background: #fdf3d9; color: var(--color-warning); border: 1px solid #f0dd9d; }

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  width: 320px;
}

.login-card h1 { text-align: center; }

.errors { color: var(--color-danger); font-size: 13px; margin: 10px 0; }
.muted { color: var(--color-muted); font-size: 13px; }
.totals-row td { font-weight: 700; }