:root {
  --primary: #1d6b4a;
  --primary-dark: #0f4531;
  --accent: #c99a2e;
  --accent-light: #e2b654;
  --bg: #f7f5ee;
  --card: #ffffff;
  --text: #22291f;
  --muted: #6f7863;
  --border: #e2ddc9;
  --danger: #b0433a;
  --success: #2e7d4f;
  --radius: 10px;
  font-size: 16px;
}

* { box-sizing: border-box; }

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

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

.topbar {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.topbar .brand { font-size: 1.25rem; font-weight: 700; letter-spacing: 0.5px; display: flex; align-items: center; gap: 10px; }
.topbar .brand-logo { height: 30px; width: 30px; }
.topbar .brand span { color: var(--accent-light); font-weight: 600; }
.topbar .user-info { font-size: 0.9rem; display: flex; align-items: center; gap: 14px; }
.topbar .user-info a.logout {
  background: rgba(255,255,255,0.15);
  padding: 6px 14px;
  border-radius: 6px;
  color: #fff;
}
.topbar .user-info a.logout:hover { background: rgba(255,255,255,0.28); }

.container { max-width: 1200px; margin: 0 auto; padding: 24px; }

.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.nav-tabs a {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
}
.nav-tabs a.active, .nav-tabs a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 22px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.card h2, .card h3 { margin-top: 0; color: var(--primary-dark); }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}

label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--muted); }

input[type=text], input[type=number], input[type=email], input[type=password],
input[type=date], input[type=time], input[type=tel], select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fbfdfd;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

.field { margin-bottom: 14px; }

button, .btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 11px 20px;
  border-radius: 7px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-block;
}
button:hover, .btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn.secondary:hover { background: #eef7f8; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 6px 12px; font-size: 0.82rem; }

table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.4px; }
tr:hover td { background: #fafcfc; }

.badge {
  display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.badge.registered { background: #e3f2fd; color: #1565c0; }
.badge.consultation { background: #fff3e0; color: #ef6c00; }
.badge.discharged { background: #e8f5e9; color: #2e7d32; }

.alert { padding: 12px 16px; border-radius: 7px; margin-bottom: 16px; font-size: 0.9rem; }
.alert.error { background: #fdecea; color: var(--danger); border: 1px solid #f5c6cb; }
.alert.success { background: #eaf7ee; color: var(--success); border: 1px solid #c3e6cb; }

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 20px;
}
.login-card {
  background: #fff;
  width: 100%;
  max-width: 400px;
  padding: 36px 32px;
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.login-card h1 { margin: 0 0 4px; font-size: 1.5rem; color: var(--primary-dark); text-align: center; }
.login-logo { display: flex; justify-content: center; margin-bottom: 12px; }
.login-logo img { height: 64px; width: 64px; }
.login-card p.sub { text-align: center; color: var(--muted); margin-bottom: 24px; font-size: 0.88rem; }
.role-tabs { display: flex; background: #f0f3f4; border-radius: 8px; padding: 4px; margin-bottom: 20px; }
.role-tabs button {
  flex: 1; background: transparent; color: var(--muted); font-weight: 600; padding: 8px; border-radius: 6px;
}
.role-tabs button.active { background: #fff; color: var(--primary); box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.demo-creds { margin-top: 18px; font-size: 0.78rem; color: var(--muted); background: #f7fafb; border-radius: 6px; padding: 10px 12px; }

.stat-box { text-align: center; padding: 18px; }
.stat-box .num { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-box .label { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.section-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }

.invoice-box { border: 1px dashed var(--border); padding: 20px; border-radius: 8px; background: #fafcfc; }
.invoice-box table td:last-child, .invoice-box table th:last-child { text-align: right; }

@media print {
  .no-print { display: none !important; }
  .card { box-shadow: none; border: none; }
}