/* --- Global Styles & Variables --- */
:root {
    --primary-color: #0056b3;
    --primary-light: #f0f6ff;
    --secondary-color: #28a745;
    --border-color: #ddd;
    --bg-color: #f9f9f9;
    --text-color: #333;
    --text-light: #555;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* --- Layout --- */
.registration-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.form-container {
    flex: 3;
    min-width: 300px;
}

.cart-container {
    flex: 1;
    min-width: 280px;
    position: sticky;
    top: 20px;
    align-self: flex-start; /* Makes it stick to top */
}

/* --- Tabs --- */
.tabs {
    display: flex;
    margin-bottom: -1px; /* Overlaps border */
}

.tab-link {
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    margin-right: 5px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.tab-link.active {
    background-color: #fff;
    border-bottom: 1px solid #fff;
    color: var(--primary-color);
    font-weight: 600;
}

.tab-content {
    display: none;
    background-color: #fff;
    padding: 25px;
    border: 1px solid var(--border-color);
    border-radius: 0 var(--border-radius) var(--border-radius) var(--border-radius);
    box-shadow: var(--box-shadow);
}

.tab-content.active {
    display: block;
}

/* --- Forms --- */
fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

legend {
    padding: 0 10px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px)); 
    gap: 20px;
}
/* 1fr is removed */
.form-grid-small {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: flex-end;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"] {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
}

/* --- Event Checkboxes --- */
.event-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    padding: 12px;
    background-color: var(--primary-light);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.checkbox-label:hover {
    background-color: #e0ecff;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 12px;
    transform: scale(1.2);
}

.checkbox-label.large {
    background-color: #f4f4f4;
    padding: 15px;
    font-weight: 600;
}

/* --- School Bulk Adder --- */
.bulk-adder {
    padding: 15px;
    margin-top: 10px;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
}

.bulk-adder h5 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.add-button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s;
    margin-top: 10px;
}

.add-button:hover {
    background-color: #004494;
}

.bulk-list {
    margin-bottom: 20px;
}

.bulk-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: var(--primary-light);
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.bulk-item-name {
    font-weight: 500;
}

.bulk-item-details {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-left: 10px;
}

.remove-item-btn {
    background-color: #e04444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    line-height: 24px;
    text-align: center;
}

.add-team-form {
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

/* --- Cart --- */
.cart-box {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
}

.cart-box h3 {
    margin-top: 0;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

#cart-items {
    list-style-type: none;
    padding: 0;
    margin: 0 0 20px 0;
    max-height: 400px;
    overflow-y: auto;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9rem;
}

.cart-item-name {
    flex: 1;
    padding-right: 10px;
}

.cart-item-price {
    font-weight: 600;
}

.cart-empty {
    color: var(--text-light);
    text-align: center;
    padding: 20px 0;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.2rem;
    font-weight: 600;
    border-top: 2px solid var(--text-color);
    padding-top: 10px;
    margin-bottom: 20px;
}

#checkout-btn {
    background-color: var(--secondary-color);
    color: #fff;
    border: none;
    padding: 12px;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

#checkout-btn:hover {
    background-color: #218838;
}

#checkout-btn:disabled {
    background-color: #aaa;
    cursor: not-allowed;
}

/* --- Responsive Design --- */
@media (max-width: 900px) {
    .registration-layout {
        flex-direction: column;
    }
    .cart-container {
        position: static;
        top: auto;
    }
}

/* --- Add to the end of your style.css --- */
          
.strikethrough {
    text-decoration: line-through;
    color: #888;
}

.cart-summary {
    border-top: 1px solid #f0f0f0;
    margin-top: 15px;
    padding-top: 15px;
}

.cart-line {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.cart-line span:last-child {
    font-weight: 500;
}

.cart-promo {
    margin-top: 10px;
    padding: 10px;
    background-color: #f0f6ff; /* var(--primary-light) */
    border-radius: 6px;
    font-size: 0.9rem;
}

.cart-promo label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.cart-promo input[type="checkbox"] {
    margin-right: 8px;
}

/* --- Add to the end of your style.css --- */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    width: 90%;
    max-width: 700px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 2rem;
    color: #888;
    background: none;
    border: none;
    cursor: pointer;
}

.payment-details {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.qr-code-container {
    flex: 1;
    min-width: 250px;
    text-align: center;
}

#qr-code-img {
    width: 100%;
    max-width: 250px;
    border: 1px solid var(--border-color);
}

.payment-info {
    flex: 2;
    min-width: 300px;
}

.payment-info h3 {
    margin-top: 0;
    color: var(--text-light);
}

.payment-info h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin: 10px 0 20px 0;
}

.payment-info input[type="file"] {
    width: 100%;
    margin-top: 5px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    background-color: var(--secondary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.submit-btn:hover {
    background-color: #218838;
}

.whatsapp-btn {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    font-size: 1rem;
    font-weight: 500;
    background-color: #25D366;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.whatsapp-btn:hover {
    background-color: #1DA851;
}