:root {
    --primary: #FF9800; /* Vibrant Orange */
    --primary-dark: #F57C00;
    --primary-light: #FFE0B2;
    --text-main: #333333;
    --text-white: #ffffff;
    --bg-main: #f4f4f4;
    --card-bg: #ffffff;
    --success: #4CAF50;
    --danger: #F44336;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

/* Nav Bar */
.navbar {
    background-color: var(--primary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    box-shadow: var(--shadow);
}

.navbar a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s;
}

.navbar a:hover {
    background: rgba(255,255,255,0.2);
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Cards & Forms */
.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

h1, h2 {
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #555;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1.5px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s, opacity 0.3s;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-success {
    background: var(--success);
    color: white;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: white;
}

.data-table th, .data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.data-table tr:hover {
    background: #fafafa;
}

/* Layout Grid for Registration/Edit (Matching the Image) */
.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    background: var(--primary);
    padding: 2rem;
    border-radius: 8px;
    border: 2px solid #000;
}

.form-grid .form-group {
    background: white;
    padding: 10px;
    border: 2px solid #000;
    margin-bottom: 0;
}

.form-grid label {
    text-transform: uppercase;
    font-size: 0.75rem;
    background: #e8e8e8;
    padding: 4px;
    display: block;
    border-bottom: 1px solid #333;
}

.form-grid .full-row {
    grid-column: span 3;
}

.form-grid .span-2 {
    grid-column: span 2;
}

/* Printing logic */
@media print {
    body * {
        visibility: hidden;
    }
    .print-label, .print-label * {
        visibility: visible;
    }
    .print-label {
        position: absolute;
        left: 0;
        top: 0;
        width: 100mm;
        height: 90mm;
        padding: 5mm;
        background: var(--primary) !important;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(5, 1fr);
        gap: 2mm;
        border: 2px solid #000;
    }
}