/* ===== Base ===== */
body { background: #f5f7f5; font-family: 'Segoe UI', system-ui, sans-serif; }

/* ===== Login ===== */
.login-bg { background: linear-gradient(135deg, #1b5e20 0%, #388e3c 50%, #66bb6a 100%); }
.login-card { width: 100%; max-width: 460px; border-radius: 16px; border: none; }

/* ===== KPI Cards ===== */
.kpi-card { border-radius: 12px; transition: transform .15s; }
.kpi-card:hover { transform: translateY(-2px); }
.kpi-label { font-size: .75rem; color: #6c757d; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.kpi-value { font-size: 2rem; font-weight: 700; line-height: 1.1; }
.kpi-sub { font-size: 1rem; font-weight: 400; color: #6c757d; }
.kpi-icon { font-size: 2.2rem; opacity: .25; }
.kpi-green { border-left: 4px solid #4CAF50; }
.kpi-blue  { border-left: 4px solid #2196F3; }
.kpi-orange{ border-left: 4px solid #FF9800; }
.kpi-red   { border-left: 4px solid #F44336; }
.kpi-purple{ border-left: 4px solid #9C27B0; }

/* ===== Cards ===== */
.card { border: none; border-radius: 12px; }
.card-header { border-radius: 12px 12px 0 0 !important; border-bottom: 1px solid #f0f0f0; padding: .75rem 1.25rem; }

/* ===== Nav ===== */
.navbar { box-shadow: 0 2px 8px rgba(0,0,0,.15); }
.nav-link.active { font-weight: 600; }

/* ===== Tables ===== */
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; color: #6c757d; }

/* ===== Farm Card ===== */
.farm-card { border-radius: 12px; transition: box-shadow .15s; }
.farm-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,.12) !important; }

/* ===== Purple helper ===== */
.text-purple { color: #9C27B0 !important; }
.bg-purple   { background-color: #9C27B0 !important; }
.border-purple { border-color: #9C27B0 !important; }

/* ===== Tabs ===== */
.nav-tabs .nav-link { color: #495057; font-weight: 500; }
.nav-tabs .nav-link.active { color: #198754; font-weight: 700; border-bottom-color: #fff; }

/* ===== Misc ===== */
.badge { font-weight: 500; }
canvas { max-width: 100%; }

/* ===== Responsive ===== */
@media (max-width: 576px) {
  .kpi-value { font-size: 1.5rem; }
  .kpi-icon  { font-size: 1.5rem; }
}