/* 스테이지 선택 화면 */
.stage-container {
    text-align: center;
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    animation: fadeIn 0.5s ease-in;
}

.screen-title {
    font-size: 2.5rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.3rem;
    color: var(--main-color);
    text-shadow: 0 0 10px var(--main-color);
    margin-bottom: 3rem;
}

.stage-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stage-btn {
    background-color: transparent;
    border: 2px solid var(--main-color);
    color: var(--main-color);
    padding: 1.5rem 2rem;
    font-size: 1.5rem;
    font-family: 'Courier New', monospace;
    text-transform: uppercase;
    letter-spacing: 0.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
    position: relative;
}

.stage-btn:hover:not(.locked) {
    background-color: var(--main-color);
    color: #000000;
    box-shadow: 
        0 0 20px rgba(0, 255, 65, 0.6),
        inset 0 0 20px rgba(0, 255, 65, 0.2);
    transform: translateX(10px);
}

.stage-btn.locked {
    background-color: #1a1a1a;
    border-color: #555555;
    color: #555555;
    cursor: not-allowed;
    box-shadow: none;
}

.stage-btn.locked:hover {
    transform: none;
    background-color: #1a1a1a;
    color: #555555;
}

.stage-select-buttons {display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;}

.btn-reset {background-color: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-family: 'Galmuri14';
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 5px rgba(255, 68, 68, 0.2);
    width: 120px;}

.btn-reset:hover {
    background-color: rgba(255, 68, 68, 0.1);
    box-shadow: 0 0 15px rgba(255, 68, 68, 0.4);
    color: var(--secondary-color);
}