body {
    background-color: #333;
    font-family: sans-serif;
    color: #fff;
    text-align: center;
    margin: 0;
    padding: 2rem;
}

.binder-grid {
    width: 600px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
    background-color: #1a1a1a;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.4);
}

.card-slot {
    width: 100%;
    aspect-ratio: 63 / 88; 
    background-color: #2a2a2a;
    border: 2px dashed #444;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-slot:hover {
    border-color: #007bff;
    transform: scale(1.03);
}

.card-slot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
}

.modal-content {
    background-color: #fefefe;
    color: #333;
    margin: 10% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
    position: relative;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

#search-input {
    width: 95%;
    padding: 10px;
    margin-bottom: 20px;
    font-size: 16px;
}

#search-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    max-height: 400px;
    overflow-y: auto;
}

.result-item {
    cursor: pointer;
    text-align: center;
    transition: transform 0.2s;
}

.result-item:hover {
    transform: scale(1.05);
}

.result-item img {
    max-width: 100%;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.result-item p {
    font-size: 12px;
    margin-top: 5px;
}

.open-binder {
    display: flex;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 1250px;
    margin: 0 auto;
}

.binder-grid {
    flex-shrink: 0;
}

.navigation-controls {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

.navigation-controls button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
}

.navigation-controls button:hover {
    background-color: #0056b3;
}

.navigation-controls button:disabled {
    background-color: #555;
    cursor: not-allowed;
}

#page-display {
    font-size: 1.2rem;
    font-weight: bold;
}

.tag-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}
.tag-options button {
    padding: 12px;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid #ccc;
    background-color: #f0f0f0;
    border-radius: 5px;
    transition: background-color 0.2s;
}
.tag-options button:hover {
    background-color: #e0e0e0;
}
#clear-slot-btn {
    background-color: #dc3545;
    color: white;
    border-color: #dc3545;
}
#clear-slot-btn:hover {
    background-color: #c82333;
}
.tag-options hr {
    margin: 10px 0;
    border: 0;
    border-top: 1px solid #eee;
}

.card-slot.tag-trade {
    border: 3px solid #007bff; /* Blue for Trade */
}
.card-slot.tag-favourite {
    border: 3px solid #09e026; /* Yellow for Favourite */
}

#note-textarea {
    width: 95%;
    height: 100px;
    padding: 10px;
    margin-bottom: 15px;
    font-size: 14px;
    resize: vertical;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#save-note-btn {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s;
}
#save-note-btn:hover {
    background-color: #218838;
}

.card-slot {
    position: relative;
    overflow: visible;
}

.card-slot:hover {
    z-index: 2;
    transform: scale(1.03);
}

.card-note-tooltip {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    border: 1px solid #555;
    border-radius: 5px;
    padding: 8px 12px;
    font-size: 0.9em;
    min-width: 150px;
    max-width: 250px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    z-index: 10;
    white-space: normal;
}

.card-note-tooltip::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent #333 transparent;
}

.card-slot:hover .card-note-tooltip {
    display: block;
}

header {
    position: absolute;
    top: 10px;
    right: 20px;
    z-index: 100;
}

#user-status {
    display: flex;
    gap: 10px;
    align-items: center;
    color: #fff;
    font-size: 1.1em;
}

#user-status button, .auth-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

#user-status button:hover, .auth-btn:hover {
    background-color: #0056b3;
}

#logout-btn {
    background-color: #6c757d;
}
#logout-btn:hover {
    background-color: #5a6268;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.auth-form input {
    padding: 12px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.auth-form button {
    padding: 12px;
    font-size: 16px;
    cursor: pointer;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
}

.error-message {
    color: #dc3545;
    min-height: 1.2em;
    text-align: center;
    margin: 0;
}
.success-message {
    color: #28a745;
    text-align: center;
}

#binder-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    max-height: 300px;
    overflow-y: auto;
}

.binder-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 10px;
}

.binder-list-item span {
    font-weight: bold;
}

.binder-list-item .actions button {
    margin-left: 8px;
    padding: 5px 10px;
    font-size: 12px;
    cursor: pointer;
}

#create-binder-form {
    display: flex;
    gap: 10px;
    align-items: center;
}
#create-binder-form input {
    flex-grow: 1;
    padding: 8px;
}

.delete-binder-btn {
    background-color: #dc3545;
    color: white;
}
.delete-binder-btn:hover {
    background-color: #c82333;
}

.loader-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #007bff;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}

.search-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.switch-form-text {
    text-align: center;
    margin-top: 15px;
    font-size: 0.9em;
    color: #666;
}

.form-switcher {
    color: #007bff;
    text-decoration: underline;
    cursor: pointer;
}
#load-more-btn {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}