.levels-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
    gap:20px;
    margin-top:20px;
}

.level-card{
    background:#ffffff;
    border-radius:15px;
    padding:30px;
    box-shadow:0 15px 30px rgba(0,0,0,0.10);
    transition:.3s;
    text-decoration:none;
    color:#2c3e50;
    text-align:center;
}

.level-card:hover{
    transform:translateY(-6px);
    box-shadow:0 20px 40px rgba(0,0,0,0.15);
}

.level-badge{
    display:inline-block;
    padding:12px 25px;
    border-radius:25px;
    color:#fff;
    font-weight:bold;
    font-size:1.8rem;
    margin-bottom:15px;
}

.level-a1 .level-badge{ background:#27ae60; }
.level-a2 .level-badge{ background:#2ecc71; }

.level-name {
    font-size:1.3rem;
    font-weight:bold;
    margin-bottom:10px;
}

.level-description {
    color:#7f8c8d;
    font-size:0.95rem;
    line-height:1.5;
}

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

body {
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(245, 245, 245, 0.69);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.header { 
    margin-bottom: 40px; 
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    margin-bottom: 10px;
}

.back-button {
    position: absolute;
    left: 0;
    background: linear-gradient(45deg, #000000, #000000);
    color:white;
    padding:12px 25px;
    border-radius:25px;
    text-decoration:none;
    display:inline-block;
    transition:.3s;
}

.back-button:hover {
    background: linear-gradient(45deg, #080222);
}

.title {
    font-size: 3rem;
    color: #2c3e50;
    font-weight:bold;
    text-align:center;
    margin-bottom:10px;
}

.subtitle{
    font-size:1.3rem;
    color:#7f8c8d;
    margin-bottom:30px;
    text-align:center;
}

.levels-grid {
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(350px,1fr));
    gap:25px;
    margin-top:20px;
}

.level-card {
    background:white;
    border-radius:20px;
    padding:30px;
    text-decoration:none;
    color:inherit;
    box-shadow:0 15px 30px rgba(0,0,0,0.1);
    transition:.4s;
    position:relative;
    overflow:hidden;
}

.level-card:hover { 
    transform:translateY(-10px); 
}

.level-badge {
    display:inline-block;
    padding:10px 20px;
    border-radius:25px;
    color:white;
    font-size:1.8rem;
    font-weight:bold;
    margin-bottom:20px;
    background:var(--card-color);
}

.level-name { 
    font-size:1.4rem;
    font-weight:bold;
    color:#2c3e50;
    margin-bottom:15px; 
}

.level-description { 
    font-size:1rem;
    color:#7f8c8d;
    line-height:1.6;
    margin-bottom:20px; 
}

.level-skills { 
    background:#f8f9fa;
    padding:15px;
    border-radius:10px;
    margin-bottom:15px; 
}

.skills-title { 
    font-weight:bold;
    color:#2c3e50;
    margin-bottom:8px; 
}

.skills-list { 
    font-size:.9rem;
    color:#7f8c8d;
    line-height:1.4; 
}

.level-status { 
    padding:5px 12px;
    border-radius:15px;
    font-size:.85rem;
    font-weight:bold; 
}

.status-available { 
    background:#d5f4e6;
    color:#27ae60; 
}

.status-coming-soon { 
    background:#ffeaa7;
    color:#d63031; 
}

.level-a1{--card-color:#27ae60;}
.level-a2{--card-color:#2ecc71;}
.level-b1{--card-color:#f39c12;}
.level-b2{--card-color:#e67e22;}
.level-c1{--card-color:#e74c3c;}


.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 5000;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: #ffffff;
    border-radius: 20px;
    padding: 35px 45px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    max-width: 350px;
    width: 90%;
    animation: popIn 0.35s ease;
}

.modal span.material-icons {
    font-size: 60px;
    color: #e67e22;
    display: block;
    margin-bottom: 10px;
}

.modal h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.modal p {
    color: #7f8c8d;
    font-size: 1rem;
    margin-bottom: 20px;
}

.close-modal {
    background: linear-gradient(45deg, #e67e22, #f39c12);
    color: #fff;
    border: none;
    padding: 10px 25px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-modal:hover {
    transform: scale(0.95);
    background: linear-gradient(45deg, #d35400, #e67e22);
}

@keyframes popIn {
    0% { transform: scale(0.7); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}