:root {
    --primary-color: #0d2c4b;       /* Deep Navy Blue */
    --primary-color-light: #1a5692; /* Lighter Navy for hovers */
    --secondary-color: #f0f4f8;     /* Light Gray Background */
    --accent-color: #d4af37;        /* Gold/Mustard for accents */
    --accent-color-hover: #c39e2f;  /* Darker Gold for hovers */
    --text-color: #333;             /* Standard Dark Text */
    --text-color-light: #6c757d;    /* Lighter Muted Text */
    --border-color: #dee2e6;
    --border-radius: 0.375rem;      /* Slightly softer corners */
    --box-shadow: 0 0 1rem rgba(0,0,0,0.07);
}

/* --- 2. General & Body Styles --- */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--secondary-color) !important;
    color: var(--text-color);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
}

.content-wrapper {
    background-color: var(--secondary-color) !important;
}

/* --- 3. Login Page Makeover --- */
.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c5364 100%);
}
.login-card-body, .card {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
.login-logo a {
    color: #ffffff;
    font-weight: 600;
}

/* --- 4. Main Layout & Component Overrides --- */

/* Sidebar */
.main-sidebar {
    background-color: var(--primary-color);
}
.main-sidebar .brand-link {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.nav-sidebar .nav-item .nav-link {
    transition: all 0.2s ease-in-out;
}
.nav-sidebar .nav-item > .nav-link.active {
    background-color: var(--accent-color);
    color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(212, 175, 55, 0.3);
}
.nav-sidebar .nav-item:hover > .nav-link {
    background-color: var(--primary-color-light);
}

/* Navbar */
.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

/* Cards & Modals */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease-in-out;
}
.card:hover {
    box-shadow: 0 0 1.5rem rgba(0,0,0,0.1);
}
.card-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}
.card-primary .card-header { /* For report cards */
    background-color: var(--primary-color);
    color: #fff;
}
.card-danger .card-header {
    background-color: #dc3545;
}
.modal-content {
    border: none;
    border-radius: var(--border-radius);
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--primary-color-light);
    border-color: var(--primary-color-light);
}
.btn-success {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--primary-color)
}
.btn-success:hover {
    background-color: var(--accent-color-hover);
    border-color: var(--accent-color-hover);
    color: var(--primary-color)
}

/* Tables */
.table thead th {
    background-color: var(--secondary-color);
    font-weight: 600;
}
.table-hover tbody tr:hover {
    background-color: #e9ecef;
}

/* Dashboard Info Boxes */
.info-box {
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
}

/* --- 5. Custom Fee Voucher Styling --- */
.fee-voucher {
    border: 1px solid var(--border-color);
    padding: 15px;
    width: 100%;
    font-family: Arial, sans-serif;
    background: #fff;
    page-break-inside: avoid;
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    overflow: hidden; /* Important for watermark */
}
.fee-voucher .header {
    border-bottom: 2px solid var(--primary-color);
}
.fee-voucher .total-section {
    border-top: 2px solid var(--primary-color);
}
.fee-voucher .watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    font-size: 3.5em; /* Adjust size */
    color: var(--secondary-color);
    font-weight: 700;
    pointer-events: none;
    z-index: 1;
    white-space: nowrap;
    opacity: 1;
}
.fee-voucher > * {
    position: relative;
    z-index: 2; /* Bring content above watermark */
}
.status-stamp.paid {
    color: #28a745;
    border-color: #28a745;
}
.status-stamp.unpaid {
    color: #dc3545;
    border-color: #dc3545;
}


/* --- 6. Print Styling (Unchanged) --- */
@media print {
    body { -webkit-print-color-adjust: exact; }
    .main-sidebar, .main-header, .content-header, .main-footer, .no-print {
        display: none !important;
    }
    .content-wrapper { margin-left: 0 !important; padding: 0 !important; }
    .content { padding: 0 !important; }
    .fee-voucher {
        width: 48%;
        height: 45vh;
        margin: 1%;
        float: left;
        box-shadow: none !important;
        border: 1px solid #ccc;
    }
}

/* In assets/css/style.css */

/* --- 7. Selectable Print Page Styles --- */
@media print {
    .no-print {
        display: none !important;
    }
    #printable-area {
        display: block !important;
    }
    #printable-area .fee-voucher {
        width: 48%;
        height: 48vh; /* Adjust for 4 per page on A4 */
        margin: 1%;
        float: left;
        box-shadow: none !important;
        border: 1px solid #ccc;
        font-size: 0.8rem; /* Smaller font for printing */
    }
    #printable-area .fee-voucher .header .logo h5 {
        font-size: 1.1em;
    }
    #printable-area .fee-voucher .qr-code img {
        width: 55px;
        height: 55px;
    }
    #printable-area .fee-voucher .watermark {
        font-size: 3em;
    }
    /* Add a page break after every 4 vouchers */
    #printable-area .fee-voucher:nth-child(4n) {
        page-break-after: always;
    }
}
.total-section .breakdown {
    font-size: 0.9em;
    font-weight: normal;
    color: #6c757d;
}
.total-section .breakdown-value {
    text-align: right;
    display: inline-block;
    min-width: 80px;
}
.total-section .final-payable {
    font-size: 1.2em;
    font-weight: bold;
}
/* --- 8. Thermal Receipt Print Styles --- */
/* This is a special print mode, triggered by adding a class to the body */

@media print {
    body.receipt-print-mode .main-sidebar,
    body.receipt-print-mode .main-header,
    body.receipt-print-mode .content-header,
    body.receipt-print-mode .main-footer,
    body.receipt-print-mode .no-print,
    body.receipt-print-mode .card,
    body.receipt-print-mode .modal {
        display: none !important; /* Hide everything */
    }

    body.receipt-print-mode #receipt-print-area {
        display: block !important; /* Only show the receipt */
    }
}

.thermal-receipt {
    width: 72mm; /* Standard thermal printer width */
    font-family: 'Courier New', Courier, monospace;
    font-size: 10pt;
    color: #000;
    padding: 5mm;
    box-sizing: border-box;
}
.thermal-receipt h5 {
    font-size: 12pt;
    text-align: center;
    margin: 0;
    font-weight: bold;
}
.thermal-receipt p {
    margin: 2px 0;
    font-size: 9pt;
}
.thermal-receipt .header, .thermal-receipt .totals {
    text-align: center;
    border-bottom: 1px dashed #000;
    padding-bottom: 5px;
    margin-bottom: 5px;
}
.thermal-receipt .items-table {
    width: 100%;
    border-collapse: collapse;
}
.thermal-receipt .items-table th {
    text-align: left;
    border-bottom: 1px solid #000;
}
.thermal-receipt .items-table td {
    padding: 2px 0;
}
.thermal-receipt .items-table .amount {
    text-align: right;
}
.thermal-receipt .qr-code-container {
    text-align: center;
    margin-top: 10px;
}
.thermal-receipt .qr-code-container img {
    width: 40mm;
    height: 40mm;
}