/* ===== CSS Variables ===== */
:root {
    --primary-gradient: linear-gradient(135deg, #2e7d32, #4caf50);
    --danger-gradient: linear-gradient(135deg, #d32f2f, #f44336);
    --info-gradient: linear-gradient(135deg, #0288d1, #03a9f4);
    --warning-gradient: linear-gradient(135deg, #f57c00, #ff9800);
    --primary-gradient: linear-gradient(135deg, #1976d2, #42a5f5);
    --secondary-gradient: linear-gradient(135deg, #6c757d, #868e96);
    --light-bg: #f8f9fa;
    --dark-bg: #212529;
    --card-shadow: 0 10px 30px rgba(0,0,0,0.1);
    --card-hover-shadow: 0 20px 40px rgba(0,0,0,0.2);
    --border-radius: 15px;
    --transition-speed: 0.3s;
}

/* ===== Global Styles ===== */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* ===== Parallax Section ===== */
.parallax-section {
    height: 300px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    overflow: hidden;
}
.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}
.parallax-overlay h1 {
    font-size: 3rem;
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
}
.parallax-overlay .lead {
    font-size: 1.5rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* ===== KPI Cards ===== */
#kpi-cards .card {
    border: none;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
#kpi-cards .card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
#kpi-cards .bg-success {
    background: linear-gradient(135deg, #2e7d32, #4caf50) !important;
}
#kpi-cards .bg-danger {
    background: linear-gradient(135deg, #d32f2f, #f44336) !important;
}
#kpi-cards .bg-info {
    background: linear-gradient(135deg, #0288d1, #03a9f4) !important;
}
#kpi-cards .bg-warning {
    background: linear-gradient(135deg, #f57c00, #ff9800) !important;
}
#kpi-cards .card-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}
#kpi-cards .display-6 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}
#kpi-cards .text-white-50 {
    color: rgba(255,255,255,0.7) !important;
    font-size: 0.8rem;
}
#kpi-cards i {
    opacity: 0.5;
    transition: opacity var(--transition-speed);
}
#kpi-cards .card:hover i {
    opacity: 0.9;
}

/* ===== Monthly Rent & Salaries Cards ===== */
.card.bg-info, .card.bg-warning {
    border: none;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.card.bg-info:hover, .card.bg-warning:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
.card.bg-info .card-title,
.card.bg-warning .card-title {
    font-size: 1.2rem;
    font-weight: 600;
}
.card.bg-info .display-6,
.card.bg-warning .display-6 {
    font-size: 2.2rem;
}

/* ===== Monthly Profit/Loss Card ===== */
#monthlyProfitLossCard {
    border: none;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
#monthlyProfitLossCard:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
#monthlyProfitLossCard.bg-success {
    background: linear-gradient(135deg, #2e7d32, #4caf50) !important;
}
#monthlyProfitLossCard.bg-danger {
    background: linear-gradient(135deg, #d32f2f, #f44336) !important;
}
#monthlyProfitLossCard .card-title {
    font-size: 1.5rem;
    font-weight: 600;
}
#monthlyProfitLossCard .display-6 {
    font-size: 2.5rem;
}
#monthlyProfitLossCard small {
    font-size: 0.9rem;
}
#monthlyProfitLossCard i {
    transition: transform var(--transition-speed);
}
#monthlyProfitLossCard:hover i {
    transform: scale(1.1);
}

/* ===== Lifetime Totals Cards ===== */
#lifetimeTotals .card {
    border: none;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
#lifetimeTotals .card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
#lifetimeTotals .bg-primary {
    background: linear-gradient(135deg, #1976d2, #42a5f5) !important;
}
#lifetimeTotals .bg-danger {
    background: linear-gradient(135deg, #d32f2f, #f44336) !important;
}
#lifetimeTotals .bg-info {
    background: linear-gradient(135deg, #0288d1, #03a9f4) !important;
}
#lifetimeTotals .bg-warning {
    background: linear-gradient(135deg, #f57c00, #ff9800) !important;
}
#lifetimeTotals .card-title {
    font-size: 1rem;
    font-weight: 500;
}
#lifetimeTotals .display-6 {
    font-size: 1.8rem;
}

/* ===== Yearly Profit/Loss Card ===== */
#yearlyProfitLossCard {
    border: none;
    border-radius: var(--border-radius);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    border-left: 5px solid #ffc107 !important;
}
#yearlyProfitLossCard:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
#yearlyProfitLossCard.bg-success {
    background: linear-gradient(135deg, #2e7d32, #4caf50) !important;
}
#yearlyProfitLossCard.bg-danger {
    background: linear-gradient(135deg, #d32f2f, #f44336) !important;
}
#yearlyProfitLossCard .card-title {
    font-size: 1.5rem;
    font-weight: 600;
}
#yearlyProfitLossCard .display-6 {
    font-size: 2.5rem;
}
#yearlyProfitLossCard small .badge {
    font-size: 0.9rem;
    padding: 0.5rem 0.8rem;
    margin: 0.2rem;
}

/* ===== Chart & Activity Cards ===== */
.card-header.bg-gradient-primary {
    background: linear-gradient(135deg, #2e7d32, #4caf50) !important;
    border: none;
    font-weight: 600;
}
.card-header i {
    margin-right: 0.5rem;
}
.card.shadow-lg {
    box-shadow: 0 15px 35px rgba(0,0,0,0.1) !important;
    border: none;
    border-radius: var(--border-radius);
}
.card-body canvas {
    border-radius: var(--border-radius);
}

/* ===== Tabs ===== */
.nav-tabs {
    border-bottom: 2px solid #2e7d32;
}
.nav-tabs .nav-link {
    color: var(--dark-bg);
    font-weight: 500;
    border: none;
    padding: 0.8rem 1.5rem;
    transition: color var(--transition-speed), border-bottom var(--transition-speed);
}
.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: #2e7d32;
}
.nav-tabs .nav-link.active {
    color: #2e7d32;
    background-color: transparent;
    border-bottom: 3px solid #2e7d32;
}
[data-bs-theme="dark"] .nav-tabs .nav-link {
    color: #f8f9fa;
}
[data-bs-theme="dark"] .nav-tabs .nav-link.active {
    color: #4caf50;
    border-bottom-color: #4caf50;
}

/* ===== Tables ===== */
.table {
    margin-bottom: 0;
}
.table th {
    font-weight: 600;
    color: var(--dark-bg);
    border-bottom-width: 2px;
    border-bottom-color: #2e7d32;
}
.table td {
    vertical-align: middle;
}
.table-hover tbody tr:hover {
    background-color: rgba(46, 125, 50, 0.05);
}
[data-bs-theme="dark"] .table {
    color: #dee2e6;
}
[data-bs-theme="dark"] .table th {
    color: #f8f9fa;
    border-bottom-color: #4caf50;
}

/* ===== Buttons ===== */
.btn-success {
    background: linear-gradient(135deg, #2e7d32, #4caf50);
    border: none;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(46, 125, 50, 0.3);
}
.btn-primary {
    background: linear-gradient(135deg, #1976d2, #42a5f5);
    border: none;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(25, 118, 210, 0.3);
}

/* ===== Loading Spinner ===== */
.spinner-border.text-success {
    color: #2e7d32 !important;
}

/* ===== Dark Mode Overrides ===== */
[data-bs-theme="dark"] {
    --light-bg: #1e1e1e;
    --dark-bg: #f8f9fa;
}
[data-bs-theme="dark"] body {
    background-color: var(--light-bg);
    color: #f8f9fa;
}
[data-bs-theme="dark"] .card {
    background-color: #2c3034;
    border-color: #444;
}
[data-bs-theme="dark"] .card-header.bg-gradient-primary {
    background: linear-gradient(135deg, #1b5e20, #2e7d32) !important;
}
[data-bs-theme="dark"] .bg-light {
    background-color: #2c3034 !important;
    color: #f8f9fa;
}
[data-bs-theme="dark"] .badge.bg-light {
    background-color: #444 !important;
    color: #f8f9fa !important;
}
[data-bs-theme="dark"] .text-muted {
    color: #adb5bd !important;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    .parallax-section {
        height: 200px;
    }
    .parallax-overlay h1 {
        font-size: 2rem;
    }
    .parallax-overlay .lead {
        font-size: 1.2rem;
    }
    #kpi-cards .display-6 {
        font-size: 1.5rem;
    }
    .card-title {
        font-size: 1rem;
    }
    .nav-tabs .nav-link {
        padding: 0.5rem 0.8rem;
        font-size: 0.9rem;
    }
}

.bg-gradient-success {
    background: linear-gradient(135deg, #2e7d32, #4caf50);
}