:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --bg: #f4f6fb;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--primary); text-decoration: none; }

/* ---------- Layout ---------- */
.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar .brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar nav a {
  margin-left: 18px;
  color: var(--text-light);
  font-weight: 500;
  font-size: 14px;
}
.topbar nav a:hover { color: var(--primary); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 {
  font-size: 22px;
  margin: 0;
}

/* ---------- Cards / Stats ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 18px 20px;
  border: 1px solid var(--border);
}

.stat-card .label {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 6px;
}

.stat-card .value {
  font-size: 24px;
  font-weight: 700;
}

.stat-card.green .value { color: var(--success); }
.stat-card.blue .value { color: var(--primary); }
.stat-card.orange .value { color: var(--warning); }

/* ---------- Property cards ---------- */
.property-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 18px;
}

.property-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow .15s ease;
}
.property-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }

.property-card h3 {
  margin: 0 0 4px;
  font-size: 17px;
}

.property-card .meta {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.progress-bar {
  height: 8px;
  background: #eef1f6;
  border-radius: 6px;
  overflow: hidden;
  margin: 10px 0 6px;
}
.progress-bar > div {
  height: 100%;
  background: var(--success);
}

.row-between {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge.active { background: #dbeafe; color: var(--primary-dark); }
.badge.completed { background: #dcfce7; color: var(--success); }
.badge.cancelled { background: #fee2e2; color: var(--danger); }
.badge.paid { background: #dcfce7; color: var(--success); }
.badge.pending { background: #fef3c7; color: var(--warning); }
.badge.overdue { background: #fee2e2; color: var(--danger); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-align: center;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f1f5f9; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.full { width: 100%; }

/* ---------- Forms ---------- */
.form-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  max-width: 640px;
}

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* ---------- Table ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
th, td {
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
th {
  background: #f8fafc;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-light);
}
tr:last-child td { border-bottom: none; }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  border: 1px solid var(--border);
}
.login-box h1 {
  font-size: 20px;
  text-align: center;
  margin-bottom: 4px;
}
.login-box p.sub {
  text-align: center;
  color: var(--text-light);
  font-size: 13px;
  margin-bottom: 24px;
}

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 18px;
}
.alert.success { background: #dcfce7; color: #166534; }
.alert.error { background: #fee2e2; color: #991b1b; }

/* ---------- Proof thumbnail ---------- */
.proof-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
}

.text-right { text-align: right; }
.mt-16 { margin-top: 16px; }
.flex-gap { display: flex; gap: 10px; flex-wrap: wrap; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .topbar nav a { margin-left: 10px; font-size: 13px; }
}