:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --accent-color: #6e87ff;
    --secondary-color: #8f8f8f;
    --approved-color: #4caf50;
    --denied-color: #f44336;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px;
    position: relative;
}

.home-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--accent-color);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.home-btn:hover {
    background-color: #5a73e8;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.description {
    color: var(--secondary-color);
    max-width: 800px;
    margin: 0 auto;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.btn {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    border: none;
}

.btn:hover {
    background-color: #5a73e8;
}

.btn-secondary {
    background-color: var(--card-bg);
    border: 1px solid #333;
}

.btn-secondary:hover {
    background-color: #2a2a2a;
}

.levels-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.level-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid #333;
    margin-bottom: 15px;
}

.level-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    cursor: pointer;
    padding: 10px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.level-header:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.level-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.collapse-icon {
    color: var(--secondary-color);
    font-size: 0.8rem;
    transition: transform 0.2s ease;
}

.level-content {
    display: none;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.level-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 600;
}

.level-name-input {
    display: none;
    background-color: var(--bg-color);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    color: var(--text-color);
    padding: 4px 8px;
    font-size: 1.25rem;
    font-weight: 600;
    width: 100%;
}

.level-name:hover .level-name-text {
    display: none;
}

.level-name:hover .level-name-input {
    display: block;
}

.level-name-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(110, 135, 255, 0.2);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--secondary-color);
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    background-color: var(--bg-color);
    border: 1px solid #333;
    border-radius: 4px;
    color: var(--text-color);
    font-size: 1rem;
}

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

.modifications {
    margin-top: 15px;
}

.mod-section {
    margin-bottom: 20px;
}

.mod-title {
    font-weight: 600;
    margin-bottom: 10px;
}

.mod-list {
    list-style: none;
}

.mod-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    padding: 10px;
    background-color: var(--bg-color);
    border-radius: 4px;
}

.mod-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.add-mod-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid #333;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

.add-mod-btn:hover {
    background-color: #2a2a2a;
}

.delete-level-btn {
    background-color: var(--denied-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    border: none;
}

.delete-level-btn:hover {
    background-color: #d32f2f;
}

.add-level-btn {
    background-color: var(--approved-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    border: none;
    margin: 20px auto;
    display: block;
    transition: background-color 0.2s ease;
}

.add-level-btn:hover {
    background-color: #388e3c;
}

#add-level-bottom-btn {
    margin-top: 30px;
    margin-bottom: 30px;
    width: 100%;
    max-width: 300px;
}

.footer {
    margin-top: 50px;
    text-align: center;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #5a73e8;
}

.copyright {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    body {
        padding: 15px;
    }
}