.container {
    max-width: 100%;
    margin: 0 auto;
}
.container-layout {
    display: grid;
    grid-template-columns: 1fr 300px ;
    gap: 2rem;
    max-width: var(--container-size);
    margin: 0 auto;
    padding: 1rem;
}

.round-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    flex-direction: column;
}

/* 설명 텍스트 */
.instruction {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 8px;
}

/* select 스타일 */
.round-select {
    padding: 10px 14px;
    font-size: 1rem;
    border: 2px solid #ccc;
    border-radius: 8px;
    background-color: #fff;
    transition: all 0.2s ease;
    cursor: pointer;
    width: 200px;
    text-align: center;
}

.round-select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0,123,255,0.5);
}

/* 버튼 스타일 */
.round-button {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(90deg, #007bff, #00d4ff);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    width: 200px;
}

.round-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.round-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* 후보 부족 메시지 */
.no-candidates {
    font-size: 1rem;
    color: #ff4d4f;
    font-weight: 500;
}

/* 반응형 */
@media (max-width: 768px) {

    .container-layout {
        display: grid
    ;
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: var(--container-size);
        margin: 0 auto;
        padding: 0.5rem;
    }
    .round-form {
        flex-direction: column;
        align-items: stretch;
    }
    .round-select, .round-button {
        width: 100%;
    }
}