:root {
    --background-color: #101314;
    --primary-color: #181d1f;
    --secondary-color: #202629;
    --text-color: #e5e5e5;
    --accent-color: #00bfff; /* Deep sky blue */
    --accent-hover: #00aeee;
    --border-color: #333;
    --rank-color: #888;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --delete-color: #ff4d4d;
    --delete-hover: #ff3333;
    --complete-color: #4dff88;
    --video-color: #ffcc00; /* YouTube-ish yellow/gold */
    --video-hover: #ffdd44;
}

body {
    font-family: 'Roboto Mono', monospace;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 0 1rem;
}

header {
    text-align: center;
    padding: 2rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo-image {
    width: 50px;
    height: 50px;
}

h1 {
    color: var(--accent-color);
    margin: 0;
}

header p {
    color: var(--rank-color);
    max-width: 600px;
    margin: 0.5rem auto 0;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    main {
        grid-template-columns: 2fr 1fr;
    }

    #form-container {
        position: sticky;
        top: 2rem;
        align-self: start;
    }
}

h2 {
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    margin-top: 0;
}

#list-container, #form-container {
    background-color: var(--primary-color);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
}

#demon-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.demon-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background-color: var(--secondary-color);
    border-radius: 5px;
    border-left: 4px solid transparent;
    transition: background-color 0.2s ease, border-left-color 0.2s ease, opacity 0.3s ease;
}

.demon-item:hover {
    background-color: #2a3134;
    border-left-color: var(--accent-color);
}

.demon-item.completed {
    background-color: #202b28; /* A subtle green-ish background */
    border-left-color: var(--complete-color);
}

.demon-item.completed .name,
.demon-item.completed .points {
    color: var(--complete-color);
    opacity: 0.9;
}

.demon-item .rank {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--rank-color);
    width: 50px;
    flex-shrink: 0;
}

.demon-item .info {
    flex-grow: 1;
}

.demon-item .info .name {
    font-size: 1.2rem;
    font-weight: bold;
    display: block;
}

.demon-item .info .creator {
    font-size: 0.9rem;
    color: var(--rank-color);
}

.demon-item .points {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--accent-color);
    padding: 0 1.5rem;
    text-align: right;
    min-width: 90px;
    flex-shrink: 0;
}

.demon-item .controls {
    display: flex;
    align-items: center;
    margin-left: auto;
    padding-left: 1rem;
}

.demon-item .info .attempts,
.demon-item .info .completion-date {
    font-size: 0.8rem;
    color: var(--rank-color);
    display: block;
    margin-top: 0.2rem;
}

.demon-item.completed .info .completion-date {
    color: var(--complete-color);
}

/* Top 1 History Styles */
.top1-history {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: var(--secondary-color);
    border-radius: 5px;
    border-left: 4px solid var(--accent-color);
}

.top1-history h3 {
    margin: 0 0 1rem 0;
    color: var(--accent-color);
    font-size: 1.1rem;
    border: none;
    padding: 0;
}

#top1-history-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 200px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.history-item:last-child {
    border-bottom: none;
}

.history-info {
    flex-grow: 1;
}

.history-name {
    font-weight: bold;
    color: var(--text-color);
    display: block;
}

.history-creator {
    font-size: 0.8rem;
    color: var(--rank-color);
}

.history-date {
    font-size: 0.8rem;
    color: var(--rank-color);
    white-space: nowrap;
}

.control-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
}

.control-btn:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.control-btn.delete {
    color: var(--delete-color);
}

.control-btn.delete:hover {
    background-color: var(--delete-color);
    color: var(--text-color);
}

.control-btn.edit {
    color: var(--accent-color);
}

.control-btn.edit:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.control-btn.video {
    color: var(--video-color);
    text-decoration: none; /* For <a> tags styled as buttons */
}

.control-btn.video:hover {
    background-color: var(--video-color);
    color: var(--primary-color);
}

.control-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

#list-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.action-buttons button {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.8rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.action-buttons button:hover {
    border-color: var(--accent-hover);
    color: var(--accent-hover);
}

#save-btn {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--background-color);
}

#save-btn:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--background-color);
}

#clear-btn {
    color: var(--delete-color);
}

#clear-btn:hover {
    background-color: var(--delete-color);
    border-color: var(--delete-color);
    color: var(--text-color);
}

#form-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

#add-demon-form, #move-demon-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.form-group label {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--rank-color);
}

#add-demon-form input, #move-demon-form input, #move-demon-form select {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

#add-demon-form input:focus, #move-demon-form input:focus, #move-demon-form select:focus {
    outline: none;
    border-color: var(--accent-color);
}

#edit-demon-form input, #edit-demon-form select {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

#edit-demon-form input:focus, #edit-demon-form select:focus {
    outline: none;
    border-color: var(--accent-color);
}

#add-demon-form button, #move-demon-form button {
    background-color: var(--accent-color);
    color: var(--background-color);
    border: none;
    padding: 0.8rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}

#add-demon-form button:hover, #move-demon-form button:hover {
    background-color: var(--accent-hover);
}

footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    color: var(--rank-color);
    font-size: 0.9rem;
}

.hidden {
    display: none;
}

#empty-list-message {
    text-align: center;
    padding: 2rem;
    color: var(--rank-color);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1rem;
    gap: 1rem;
}

.total-points {
    text-align: right;
    color: var(--rank-color);
}

.total-points span {
    font-size: 0.9rem;
    display: block;
}

#total-points-display {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--complete-color);
    line-height: 1;
}

/* --- Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--primary-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--shadow-color);
    width: 90%;
    max-width: 500px;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay:not(.hidden) .modal-content {
    transform: scale(1);
}

.modal-content h2 {
    margin-top: 0;
    color: var(--accent-color);
}

#edit-demon-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1rem;
}

.modal-actions button {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.7rem 1.2rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-actions button[type="submit"] {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--background-color);
}

.modal-actions button[type="submit"]:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.modal-actions button#cancel-edit-btn:hover {
     border-color: var(--rank-color);
     color: var(--rank-color);
}

/* Custom Checkbox for Completion */
.complete-label {
    position: relative;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.complete-checkbox {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.checkmark {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    transition: all 0.2s ease;
}

.complete-label:hover .checkmark {
    border-color: var(--complete-color);
}

.complete-checkbox:checked + .checkmark {
    background-color: var(--complete-color);
    color: var(--primary-color);
    border-color: var(--complete-color);
}

.gd-search {
    display: inline-block;
    margin-top: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.gd-search:hover {
    text-decoration: underline;
}

.video-preview {
    margin-top: 1rem;
    background: var(--secondary-color);
    padding: 1rem;
    border-radius: 4px;
}

.video-preview iframe {
    width: 100%;
    aspect-ratio: 16/9;
    border: none;
}

.video-modal-content {
    width: 95%;
    max-width: 800px;
    padding: 1rem;
}

#video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
}

#video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.close-modal-btn {
    display: block;
    margin: 1rem auto 0;
    padding: 0.7rem 1.2rem;
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-weight: bold;
}

.close-modal-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.video-thumbnail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--secondary-color);
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-color);
    margin-top: 0.5rem;
}

.video-thumbnail:hover {
    background: var(--accent-color);
    color: var(--background-color);
}

.video-thumbnail img {
    width: 120px;
    height: 67.5px;
    object-fit: cover;
    border-radius: 2px;
}

.gd-level-details {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--secondary-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

.gd-level-details.hidden {
    display: none;
}

.gd-level-details h3 {
    margin: 0 0 0.5rem 0;
    color: var(--accent-color);
    font-size: 1rem;
}

.gd-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
}

.gd-stat {
    padding: 0.5rem;
    background: var(--primary-color);
    border-radius: 4px;
    text-align: center;
}

.gd-stat .label {
    color: var(--rank-color);
    font-size: 0.8rem;
    margin-bottom: 0.2rem;
}

.gd-stat .value {
    color: var(--text-color);
    font-weight: bold;
}

.level-id-input {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.level-id-input input {
    flex: 1;
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 4px;
    font-family: inherit;
}

.level-id-input button {
    background-color: var(--accent-color);
    color: var(--background-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.level-id-input button:hover {
    background-color: var(--accent-hover);
}